Finx's ep71 Turbo S

[finx]

for discussion thread click here viewtopic.php?f=26&t=9563&p=78232#p78232

name : ryan aka finx
model : ep71 turbo s (genuine)
year : 1986
engine: dirrty old 2e-t then 4efte, 5efte in the build






stage 1

engine : stock 2e-t with
redline pod filter
cat kicked out
a/c removed
soapy type substance for window washers... esspecially good for wipeing those v energy drink cockroaches off
pump bottel oil catch can
high low boost solinoid pulled off



made 90hp@wheels at starletcentral dynoday
and i ran a 15.5 sec 0-400m with this set up stock everything 10psi boost. had more in it too as i was running 175 enduro tyres and on a greasy unpreped winterspeed track. engine was on 200,00 odd km

then one day on a drive somewhere the oil pump pully decided it had gone around one to many times and wanted to take up airobatics. but it failed misserably and dicingrated causing the cam belt to slip and the engine went no more

stage 2

i rebuilt the origonal 2e-t to factory specifications (there was one in between but we wont go there). i also built and installed a exhaust system at this stage (2 inch to firewall 2 1/4 back from there with a single coby resonator) and upped the boost to 10psi by removing the hi/low boost solenoid and by using a custom made adjustable inernal wastegate actuator.
result:
kickd my mates gtst in the ass up my work road.

wish i had run this set up down the qauter mile, was verry quick for a almost compleetly stock 2e-t.



stage 3

4efte
installed vr4 fmic with 2inch stanless pipeing, 4puck clutch kit, and shortshifter at the same time.
spent heeps of coin tidying everything up and got it ready for the last round of nightspeed. to have it blow up (snapped rod) while testing it the night before.
striped engine down and the insides looked like it had done a million km's...

pics of when it was finished and the aftermath too come.











stage 4 (to come)

5efhe => 5efte with ported head, etc etc

build info and pics to follow as progress happends.

at time of this post specs are as follows

suspention:
front: saber springs (non progressive)
rear: king superlows

better stuff to come with 5e conversion.

wheels and tyres:
14inch minilites with
195/60/14 cheepys (soon to be changed)
toyo r881 semi's for track/ strip use (yet to even try these on the car)

interior:
stock radio riped out for weight reduction. (didnt work enyway)
truck like stock steeringwheel with nice big turbo sign in the middle in bright orange
black leather trd gearnob : adds 15hp instantly
unknown brand turbo timer
sportline steering wheel
trust gear knob
oil press, oil temp, water temp smoke series gauges

brakes:
gt front hubs and calipers
mintex pads
rebuilt rears with lucus shoes
proformance brake fluid

exterior:
stock turbo badges/ dicals, front and rear kits, sideskirts and top rear wing. (86+87 dont have the middle wing)
found a set of late model tinted turbo s tail lights. (once again the 86 doesnt have them)

deffects : this one doesnt seem to have any rust... which is normally a stardard option


future mods:

t25, t3 or similar turbo with upgrade fueling and link
gt gearbox and trd lsd
15inch rims

[finx]

bump updated

[finx]

bit of an update:

had a new clutch kit made for my 5e flywheel last week at autoclutch. picked it up on tuesday and fitted it wed night. 200mm surface area with a organic type carbon kevlar lining, doubble sprung center plate (cryo treated and the rest). with a 2400 pound pressure plate and had flywheel machined and balanced as well.

here's a pic, all fitted up and ready to go:



raced on fri at nightspeed drag wars. managed a 14.5 which is slower than last rounds 14.3 but i was 10km slower at the end of the track. so i have lost power somehwere and gained time somewhere else. 60fts didnt improve, still stuck in the 2.5sec so loads of room to improve on there.

today i managed to get the 5th gear syncro hub off the gearbox im using for my TRD lsd. striped the rest of it down, pulled the stock diff out and hurled it across the nabours fence. then went back inside. now its time to do a clean up, get some new diff bearings and put it all back together with the LSD in there.

things are coming together.


next on the list is to finnaly get rid of the dam 2e-t ecu and injectors.

[finx]

few more pics:







things to come in the coming months:

TRD LSD gearbox
aftermarket manifold

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another update:

best time from drag masters on 10th of jan and new pb of 14.27
here's the time slip and a pic from the day

click on pics for enlargement.





dropped the 60fts as the track was prepped unlike night speed. but was slowed by crap gear changes cos of issues with the new clutch set up. pedal ingagement was on the floor because of the extra heavy duty pressure plate. now solved after hours of testing trial and error.
1x 1.5mm washer under release fork pivot, re bleed hydrolic system, new slave, and pedal adjustment later...
feels a million dollars


i put a glanza v factory LSD gearbox set up into the car for nats.
loads of stuffing around trying to make things work that are probably not supposed to.
worked out that the short drive shaft has a different spline to the factory item, and as it was out of a glanza with abs brakes, i had to not only change the axle and cv's but also change the rh hub over so suit the abs cv as well.

upon this i made a discovery. the glanza hubs are actually different to that of the gt and ep7#.
the ep91 hub makes the wheels tuck under the guards much better than the others making it possible to lower the car further without guard rub. would be able to sit 205's under the guards with these on your car and makes it sit in a way better looking stance on the road.
this is because the arm that the tie rod end goes through is shorter than that of its counterparts and the geometerys of the strut bolting points are also slightly different.
so if you are converting your ep71 to bigger brakes, try hunt down some ep91 hubs for the conversion.

also ran into issues with the rear gearbox/engine mount from the ep91 to suit the lsd box. the angles are lightly different and this makes it verry difficulty to line the mount up. also ity makes the gearbox sit on a funky angle, and after some spirited driving resulted in some broken c/v's under instant load out of bends.
so if you are compensating this conversion on your ep7# you will need to get a custom rear engine mount made up.
took it to nats anyway as i spent all the time changing everything over to make it work and un supprisingly snaped another cv on the 1st run. so had a nice tow home to think about what im going to do to the car next....

which includes :
finishing my TRD LSD gearbox
changing the ecu, loom and injectors to 4efte finnaly
upgrading the turbo set up
installing whiteline suspention components
and a few other bits and bobs

pics of all this to come....


here's a couple more pics from the folder or many:

4 and rotor nats



5efhe with stock 4efte ct9 set up.



recent pics of the car, its a bit dirty as i have been working on it and havnt washed it.









enjoy

[finx]

been almost a month scince my last update and tbh i havnt done allot on the ep71.
iv been distracted with my new side project. (black ep91 glanza v with tdo4l)
pics and a project thread for this to come...

back to the 71...
striped it down, and started peacing things together.
got basicly all the parts sorted only diff bearings and a few little bits missing from the list now.
lots of welding to be done and things to be put together.

loom is now off at my brothers place getting the chop for the twin cam ecu conversion.
bearings for LSD diff are on order.
gearbox is all stripped down, cleaned and ready for reassembaly.
got all the steel (or at least most of it) for the manifold conversion and a few other bits.

pics to come when camera is charged and i can be botherd

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another update, been busy this weekend slaving away on the old girl

cut the new turbo flange and exhaust flanges at work during the week fro the new down pipe, piked up some bends and straight pipe then went to work.
cut the old 2inch front 1/4 of the exhaust off then started making the new down pipe.
now has 2 1/4inch off the turbo into 2 1/2 inch straight through. should help flow things a bit better...


also sorted out the new intake path, and the new driver side intercooler piping. this is extreemly tight because i refuse to cut holes in my front bumper for a fmic. made up some new mounts for it too.
should look good when the bumper is back on, youll hardly be able to see it too. sleeper


picked up an alloy rad as even the turbo s one wasnt going to fit once the new manifold was all fitted up. cut some 3mm alloy sheet up and went to work making some new mounts.

also adapted the ep71 stock fan to the alloy radiator. fits perfictly with the new core. all i had to do was cut some mounting tabs up tack them in place and drill some holes.

here's a teaser...



more pics to come...

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after spending late nights all last week doing custom work and powering through the list of things to do on the old girl i had it finnished and ready to test during the last round of nsdw's.

heres some pics of the finnished product.
more details from the build will be posted up after some more testing and development.

finnished!



minus bra:



bling:



new down pipe:



manifold. after wastegate relocation:



minus skirt:



radiator with fan mounted:



main part of the new intake pipe





drag results:

i was a bit dissapointed with the out come of the night only managing a 14.5sec run. but it was purely a night for testing out the new set up. overall it was a success with no brake ages and times close to what it was doing before straight out of the box. it also brought up a few things that need addressing and changing.

traction and boost control issues because of a exhaust leak from the head flange on the new manifold meant i was only able to run 6psi boost and there was a sizeable power loss. given thus trap speeds are higher now at almost 160km/h where was before the car was only trapping verry low 150's. so thats a sign of good things to come.
also traction was verry poor at this meeting. even with some new 225 hoosier drag radials and the low boost pressures, the car just wanted to spin and spin and spin the wheels. on a couple of runs it didnt bite down untill about half track. 60fts were hammered drematicly as a result.

heres a vid also posted in the Auckalnd section

http://www.youtube.com/watch?v=ocJ5mRV4wcY

things to be done over the next few weeks are
get diff bearings and rebuild c52 gearbox with TRD 1.5way Lsd.
remove turbo set up and fix manifold head flange exhaust leak.
set higher boost pressure and tune
might get time to do some other bits i have been wanting to try out as well.


i would also like to thank fatman for lending me a hand put it together. cheers man


thanks for reading

Ryan

[finx]

well, the old girl is now sporting some new bits.

last week the rest of the gearbox part turned up so i mished it to get it going for drags today. wed and Thursday night i set to work rebuilding the c52 gearbox and installing my TRD LSD.
had it basically all done by Thursday night. gave it a lick of paint and it looks a million dollars.
unfortunately i did manage to get any pics of the build as i couldn't find the camera

i will most likely be putting the lsd into a c56 at some stage in the near future so ill get pics when i do that build.

last sunday i pulled the turbo set up back off to get the manifold flanges straightened and to replace the blown turbo gasket (this was causing some major power loss). dropped it off to my engineer on monday, picked it up on thursday and it was ready to go good as new.

spent saturday installing the new gearbox in and putting the turbo set up back on.
went for a bit of a drive and the lsd is awesome. handling is now intense. the front wheels now want to pull you through the corners instead of going stright, huge improvement. also traction is greatly improved on the street. (havnt tried any 2nd gear launchs yet but its very tempting).



went to a drag meet today to see how she ran with the new gearbox and fixed exhaust manifold.

managed a new PB of 13.75sec, with 2.031sec 60ft and 98.32 mph traps. im stoked as.
60ft times still need improving thou, best one of the day was on that run. i have previously done 2.0sec 60ft's on the open diff but i think the limiting factor now is power because of a low boost pressure issue im having. it will only run 6psi even thou its got a 10psi wastegate spring. (currently trying to sort this still, i thought it was because of the exhaust manifold leaks).
another area that needs addressing is the gearbox ratio's. i was having to rev out and go over the line in 3rd gear as the gears are to tall for the ct9's power band and slowing me down. i went from 94-95mph to 97-98 mph just buy holding 3rd gear. so a c56 will be replacing the just rebuild c52 in the not to distant future.

im confident it still has more in it with higher boost pressure's better gear ratios and a few other bits that i want to try out.

vids from today, big thanks to Filx for taking them

1st run of the day. tyres at 22psi and track very slippery
http://www.youtube.com/watch?v=-juQw6Fv79g

this is 1st round of knock outs. hard to beat an auto v8 that dials in a 13,70 and does a 13.76.. this run i did a 14.1 which was a new PB untill the 13sec run.
http://www.youtube.com/watch?v=zsg_aj3fAM8

burnout on the 13sec run.
http://www.youtube.com/watch?v=0bbQVqtyPeI

13 sec run.
http://www.youtube.com/watch?v=1yOyTiPwzfw

[finx]

its been a while so here's a bit of an update

few weeks ago the custom clutch from autoclutch decided it had had enough and died
i wasn't happy with it from the word go. on 1st installment it would only ingauge when the pedal was right on the floor. and that was only after a compleet re bleed of the hydrolic system and the pedal adjustment wound all the way out.
then i bought a new slave and still nothing. so i made custom slave pins and put a washer under the release for pivot in the bell housing and this seemed to fix it finnaly. (still had 3mm of free play so everything was well finnaly.
then it started slipping. and on removal its toasted. (pics to come)
this clutch only did 2500km and they rated it to suit a much higher hp/torque engine than what im running currently, so im going to be asking them what the deal is.


after replacing the clutch with a clutch industrys 4puck item (previously run one of these, and its a compleet mongrel to drive) i had another go at fixing the low boost issue.
after checking every joiner and every hose i was left to the concusion the only thing left that it would be was that the internal wastegate wasnt closed up properly.
so i replaced it with another ct9b but to no avail so i have to look further into it.
next thing to check will be boost gauge and change the wastegate spring.


after hearing of an up coming private drag meet i decided to enter for a laugh even thou the car was still running only 6psi boost.

best run of the day was a 14.4sec @158km/hr. it was impossible to get any power to the ground as the track was cold, un preped and by half way through the day some dork had dumped a huge mound of crap all over the start lines in both lanes and no one would sweep it up. 1st and second gear were just a joke.
i did 13 runs total and the old girl just lapped it up no problems at all so its proving its a fairly reliable package bar the recent clutch and boost issues. worst run was a 15.3 where i missed 3rd gear and cruised over the line in 4th.
out of the 13 runs i only lost 2, (one by only 0.05 of a second) and just about every car i raced was at least 2L turbo subi or mitsi. it was a bit weird beating so many 4wds that were obviously also having traction issues (probably not as much as i was). and even beating some off the line. the ones that i didnt, by half track i was making huge amounts of ground on and then passing before going over the line
all in all it was a good day out, and couldn't complain for value for money. for $15 who would ?



getting it dynod in a few weeks time so will be interesting to see how much power its making.
ill post results and graph after. just gota sort those boost issues!

few minor things ill be looking into doing over the next couple of months will be rebuilding a low ratio gearbox with the TRD LSD
4efte ecu loom and injectors then re dyno
installing whiteline suspension parts. sway bar and panhard rod.
upgrading brakes
then taking it to puke

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bout time for an update

a few weeks passed and not much happend then it turnd into months and finnaly today i finnaly got my car dynod

big thanks to glen! hes the man.

didnt get around to changing anything like i had planed in that time, was exactly the same spec as it had been running during the drag season. which probably isnt such a bad thing.

the results?
108kw@wheels
392nm torque
9psi boost

fairly happy with the outcome. and it gives me a good benchmark to work from with some coming improvements in different areas.


also went to puke a few months back for a thrash. timed at 1min 14sec full street trim


pic of the graph







over and out for now

[finx]

bit of an update;
car has been off the road for a few months now bar the dyno run in September.

last week i overhauled brakes in a last ditch attempt to sort out the really long reach brake pedal.

rebuilt the front brake calipers
new front brake rotors
new front brake pads (street pads for now)
replaced the master cylinder with a larger ep91 item
and replaced the brake booster for a low KM ep70 item
re bleed the entire brake system with new dot 4 fluid
adjusted the rear drums up again


and f*(&k me what a difference. the thing actually pulls up now and doesnt try drag you in one direction across the road under heavy braking effort. its fantastic.
also fixed the really long brake pedal reach which i have fought ever scince i purchased the car a few years ago.
pics to come...

this is only a temp set up for over the coming summer drag racing season untill i have some more coin to spend when ill be upgrading the front again to

twin pot ae101 calipers
255x25mm thick front rotors which i will also have slotted
and some more Mintex pads to suit the bigger calipers. my last set got chewed out by a worn rotor at puke earlier in the year.
and at some stage im also going to be doing a rear disc brake conversion from a ep82





now the braking is sorted the car is off the the panel shop this week for some rust repairs and touch ups. would attempt it myself but lack of access to a welder at home makes things difficult. getting it done for a good price also so cant complain.
will post pics of before and after once the work is completed. then its off for a wof




also picked up a megasquirt 2 aftermarket stand alone ecu recently. so after some modifications and a new engine loom ill have that in and off to glen for a dyno tune and see how much extra power can be extracted from the old bitch in its current guise (same to that of the 13sec run earlier in the year).

[finx]

all new front brakes




self explanatory





heres hoping they should stop some of this on launch...

[finx]

long time no update

as most will already know have been to 3 drag meets in the last month with good results. the max i can get out of the car with this set up has been reached so some upgrades are under way in form of an aftermarket ecu and a few other minor bits.



heres a list of all my runs from this season so far.



a few notes from the above

comp meeting 3 1st run: limiter launch, spunn the wheels all the way through 1st gear, high 2.0 60ft. later in the day launching between 4500-5000rpm seemed to work the best netting good results

comp meeting 3 was also the 1st time i have run consecutive 1.9# 60'
and i came second see run number 7 (DYO dial in for meet was 13.19) other guy sand bagged his way to the finnal and did so again to take the win... wasnt impressed, but thats racing.

4 and rotor nats run number 4 fastest of the meet and my fastest trap speed over all so far. this was also my 1st ever 1.9 60'






Ryan

[finx]

Megasquirt aftermarket ecu conversion is well under way.

Purchased the ecu at the tail end of 2009 with intentions of fitting after i had tried a few more things out with stock ecu set up and now having achieved the maximum i can get from it some changes are needed to go any faster so its time has come.

origonal intentions were to swap to a 4efte ecu and loom set up before going to the MS and see if the 4efte ecu would gain any more power over the 2et item but due to some complications with the wiring loom in my year of ep71 being different to that of every other year i decided to ditch it in favor of going straight to the MS. The required mods could have been done to make the 4efte stuff work but not without re working allot of the loom and as i dont have a spare ep71 86 loom and there not many kicking around i have decided to try and leave it in tact as much as possible.

while the stock loom was out of the car a few things were tidyed up and re wraped after a hard 24year life so far, and then put back in the car.

next job on the list was to make an adapter harness for the MS so plug into the stock loom.
i purchased a loom stub off DIYtune not long after buying the MS so that was finnal employed and the hunt was on for a 2et style ecu side female connector for the other end.
with not many 2et engines let along ecus floating around these days i wasnt about to rob one of its glory. after some research early model 4age ecus 1g ecus and some others all share the same plugs so a mish to pick a part was on and one was acquired for the cause.

then it was just a case of joining the required wires to run the MS and job done.

All things going to plan old man Glen will be giving it a revised tune later in the week just in time for Nightspeed


big thanks to fatman for his help so far with the conversion.







Out

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uhho

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Thursday nights work



Block cleaned, bores measured and hones, head surface checked cleaned and measured



new pistons on origonal rods. pistons cleaned and measured, rings gaped and installed ready to be inserted into the bores



pistons in the holes



small discovery i made when pulling the engine down. late model 5efhe rod vs early model 4efte rod. early 5efhe rods are thicker than the pictured 4e rod...









Saturday afternoon finnished off and run in has begun...







runs smooth so far. already has 100 ks on the clock, time for oil change more k's then boost

[finx]

Because two is always better...

[finx]

Digging this up from the graveyard like a still born.


Before







After









Out