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Aug 22, 2020 - 8:56 AM Forum: Forced Induction · Post Preview: #1105555 · Replies: 163 · Views: 129,737
Hafkai



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QUOTE (BonzaiCelica @ Aug 3, 2020 - 12:03 AM) *
have you any videos of your car on track?

No, nothing from a 1/4 mile and no circuit videos with this setup, but i wouldnīt try it with this setup right now, on a circuit iīm pretty sure something would overheat with the stock cooling system biggrin.gif .. and for a 1/4 mile i would need some better tires and would have to rebuild the transmission, everything looked ok when i took it apart but itīs really hard to shift over 7000rpm, no grinding but the gears just take long time to go in. Iīll rebuild the synchros from 1-4 in the next months with new oem parts, i hope it will make a difference.

But i finished my new intake manifold and itīs huge... made a massive difference in my VE map, the old intake lost power from 6000 to 8000 in a almost straight line, now it stays way longer at a higher level, i gained over 10% at 7500rpm.
















Aug 1, 2020 - 4:58 AM Forum: Forced Induction · Post Preview: #1105380 · Replies: 163 · Views: 129,737
Hafkai



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Quite some time since my last post and a lot has been done to my Celica, the car was running really good with the 2017 setup but i couldnīt get any more out of the old T28 so in 2019 i decided to go with a new turbo. I planned to get an EFR for some time but i would have been a lot work to make it fit, so i decided to stay with Garrett and got me a GTX2860R GenII and it definitely was the best decision... awesome turbo and the sound is amazing bowdown.gif

Of course the C52 didnīt like it that much... i kept boost in 3. gear at about 16psi and raised it in 4. and 5. to about 21psi but i still managed to rip the 3rd gear appart just like my old transmission... so i started to search something else that will hold some power... of course a E58 was the way to go but impossible to get in germany, i luckily found one in Australia and he even shipped it to Germany. Meanwhile i put in another C52 so in can drive and raised the boost in 4. and 5. even more to about 26psi and barely used the 3rd gear at all wink.gif

I took the E58 apart to see what i got and was a little disappointed regarding the size of the gears, of course they are stronger than the C52 ones but i was hoping for something more trustworthy wink.gif ... here is a direct comparison left E58 / right C52:



Then i got the idea of mating a E154 ST205 transmission to the E58 bell housing wich should work in theory.... i found a E154f for even half the price the E58 cost me, took it apart and eveything was looking perfect, the gears are WAY stronger and should hold way more than my 7A will ever produce...





A nice LSD shouldnīt be missing in a build like this...



The mounts on the transmission had to be reworked to make all this fit but that wasnīt to much trouble, the clutch and axles were much more of a problem.... at first i tried to get a new clutch disc from ACT for my XTSS but they didnīt respond to me, so i contacted clutchmasters and they made me a custom clutch to fit the E154 spline, itīs a FX350 so still very daily drivable and holds quite some torque..
As for the axles i planned to get some custom made but that would have cost me a fortune here in Germany so i found a set of AW11 SC axles in the US.. not cheap either but it was the right decision, the outer joints even fit the AT200 hub i just had to fit ABS rings on them ... then i had the get some spacers for the inner joints made since the axles where a bit to short but it worked perfect in the end.

Other things i changed are the PCV catch can and the air filter housing, i was trying to fit a filter as big as possible and ended with a Lexus ISF filter.





I got some new gauge faces made to fit the engine better, rev limiter is set at 8100rpm.



Next step this year is a new intake manifold with slightly shorter runners with bigger diameter and a much bigger plenum.

And iīm building a new short block since the engine is blowing gas in the cooling system, at first i thought itīs the old cracked head so i build a new one last winter... but that didnīt fix the problem, even ARP head studs werenīt enough till i noticed that the deck was not flat.

I wasnīt on a dyno yet but the engine should make about 400-420bhp, maybe 340-350whp.

Oct 31, 2017 - 1:18 PM Forum: Forced Induction · Post Preview: #1094068 · Replies: 163 · Views: 129,737
Hafkai



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QUOTE (BonzaiCelica @ Sep 2, 2017 - 12:40 PM) *
but great build. its so unique. are you still running that cold air box set up with new intake manifold??

Thanks smile.gif .. the air box is still in and seems to be big enough and working quite well for now

The car finally was on a dyno and i'm very happy with the result, very nice torque curve and some good power regarding the old T28 turbo

1,1bar - 16psi


And a short 100-200km/h video

'94 Celica ST Turbo 100-200km/h

Sep 26, 2017 - 2:20 PM Forum: Forced Induction · Post Preview: #1093345 · Replies: 65 · Views: 29,031
Hafkai



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QUOTE (HardHead93 @ Sep 25, 2017 - 2:33 AM) *
Does anyone know how to check timing with a coil on plug setup? There is nowhere to hook up my timing light.

This is how i do it





Works perfect smile.gif

Aug 31, 2017 - 12:40 PM Forum: Forced Induction · Post Preview: #1092776 · Replies: 163 · Views: 129,737
Hafkai



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QUOTE
Is the OEM oil pressure sender on the 7AFE also in the head?

The pressure sender sits in the engine block next to the oil filter, but after over 1.000 miles i got no problem with the head so i think there's still enough oil pressure wink.gif

With the new cams in, the engine felt way better in higher rpms, revved pretty quick to 6500 rpm but still wasn't happy above that. The cams should be aggressive enough to rev way past 7000 without a problem so there must be something preventing a good flow.
So i started building a new intake using a ST185 throttle body, here are some pics:















And a short video of a 3rd gear pull, rev limiter is set at 7700rpm:

https://www.youtube.com/watch?v=WRI1ZIktgAU

The engine feels a little bit dull mid range since i lost some torque but it revs like crazy considering it's a 7A wink.gif ... and the gearing doesn't fit the engine anymore, 3. gear ends at 107 mph and 4. at 144 mph ... waaaay to long

Mar 13, 2017 - 2:24 PM Forum: Forced Induction · Post Preview: #1088821 · Replies: 163 · Views: 129,737
Hafkai



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QUOTE (Javicillo @ Mar 9, 2017 - 11:20 AM) *
Where did you find the forged pistons and rings? What model or reference are they?

You got a PN smile.gif

Quite some time since i posted something, i haven't done much last year, i finally installed a ST205 Spoiler i got for years waiting to get some paint.. and i removed the really old EMS 8860 ECU and replaced it with a Ecumaster EMU.





Well and last month i removed the cylinder head... i still have big problems with oil flowing through the crankcase ventilation port in the valvecover when driving at the circuit, blowby is definitely not the cause of this problem so it has to be something else...
I remembered that there are oil restrictors for 4a-ge engines that are placed in the oil port that goes to the head, and since the oil return holes in the head are really small and somewhat funny placed i thought i'll give it a try and put a restrictor in my block... i hope that this will solve my problem and i really hope the restriction is not to much and i get problems with sufficient oil pressure at the head tongue.gif

And the next thing i upgrade while the head is off are the camshafts, but i have to modify some things to make them work, the intake cams got 9,5mm lift wich doesn't sound like much but the 7A is not designed for that... i measured everything and it seems like the spring retainers are very likely to run into the valve stem seals and the springs may even bottom out so i'll have to modify the valve guides and i ordered new valve springs.

Hopefully i got all parts till the end of the month and the car will be ready in the next 3-4 weeks.

Dec 5, 2016 - 1:50 PM Forum: Engine/Transmission/Maintenance · Post Preview: #1087046 · Replies: 2 · Views: 670
Hafkai



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I tried to measure the crankshaft as good as possible...


Jun 25, 2015 - 3:46 PM Forum: Forced Induction · Post Preview: #1071139 · Replies: 163 · Views: 129,737
Hafkai



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Again some Videos... wink.gif ..

My little 7A vs my daily S4 B5 .. poor Audi...

100-200km/h

100-200km/h in 5. gear

40km/h start in 3rd gear

And a little Video made by a friend

Toyota Celica AT200 Turbo (275 hp) 0-100 kph & 100-200 kph

May 5, 2015 - 11:38 AM Forum: Forced Induction · Post Preview: #1069113 · Replies: 2 · Views: 1,987
Hafkai



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I wouldn't put the oil return in the lower oil pan, the return should be above the oil level so it can flow freely. You should try to get a fitting in the upper aluminum oil pan.

May 3, 2015 - 12:02 PM Forum: Forced Induction · Post Preview: #1068981 · Replies: 163 · Views: 129,737
Hafkai



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Thanks! smile.gif .. i'm really happy how the welds look too but i still need to practice a lot

I just made a little video while testing a new ECU setup:

100-200km/h test

Apr 25, 2015 - 4:02 AM Forum: Forced Induction · Post Preview: #1068531 · Replies: 163 · Views: 129,737
Hafkai



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Long time since the last post... haven't done much on the car besides trying not to destroy something wink.gif ..

The only new things are some oil-/fuel catch tanks and a new air filter box, everything build from scratch.

Since my Aeromotive Stealth intank pump died after just about 2-3.000km i put the old ST205 pump back in and let her fill the catch tank, from there an external Bosch 044 feeds the engine.

The air filter box still needs a top cover since it's kinda illegal to run open air filters in germany .... but for now i leave it open, just love the sound wink.gif ....






Nov 26, 2014 - 3:00 PM Forum: Suspension/Handling/Braking · Post Preview: #1059657 · Replies: 4 · Views: 1,735
Hafkai



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I just modified my factory strut brace, the steel tubes cost me ~5$ and another 15$ for some gray metallic paint to match the front trd strut brace.




Jul 20, 2014 - 1:05 PM Forum: Forced Induction · Post Preview: #1051397 · Replies: 163 · Views: 129,737
Hafkai



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Well... the ACT clutch is amazing, smooth engagement and seems to hold more torque than the Exedy Stage 2... maybe to much for my old transmission... years of track racing an a lot more power than stock resulted in a funny looking 3rd gear:



I replaced the transmission with a spare one i luckily had laying around, but i think i should start to look out for an alternative to the C52 ...

Jul 7, 2014 - 3:09 PM Forum: Forced Induction · Post Preview: #1050479 · Replies: 163 · Views: 129,737
Hafkai



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I finally got the ARP bolts (ARP# 203-2802), torqued them to 70ft/lbs (stock bolts 58ft/lbs) and this time with loctite....

ARP compared to stock bolts:





New clutch...



I got most stuff back together, just need to torque the transmission bolts and reinstall the IC piping. The clutch pedal is definitely stiffer compared to the Exedy Stage 2 but nothing to bad.

Jul 6, 2014 - 2:12 PM Forum: Forced Induction · Post Preview: #1050414 · Replies: 163 · Views: 129,737
Hafkai



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I replaced the crankshaft with my old one from the first engine, had to get 2 new main bearings because the crank has different journal sizes and i replaced all rod bearings too. Still waiting for the ARP flywheel bolts and i got me a new clutch since the Exedy Stage 2 was slipping at 1,2bar boost.
The new one is a ACT XTSS, should hold up to 310ft/lbs... the Exedy was supposed to hold 261ft/lbs wich is pretty much the exact torque i had with 1,1bar.

Jun 10, 2014 - 3:37 PM Forum: Forced Induction · Post Preview: #1048666 · Replies: 163 · Views: 129,737
Hafkai



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Nothing bad, just some scratches.



The worst part is the crankshaft....



I hope the mating surface can be fixed but it sucks to take half the engine apart.... it was running so good and everything was fine, goddamit mad.gif mad.gif

Jun 10, 2014 - 2:54 PM Forum: Forced Induction · Post Preview: #1048660 · Replies: 163 · Views: 129,737
Hafkai



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Well...... crap .....



Always remember to use loctite on flywheel bolts.... btw.. does someone know if there are suitable ARP bolts for the 7A?

I'm not sure if they really got loose and the whole thing rattled itself to death or if the bolts simlpy failed.. but the marks from the bolt heads in the flywheel look like the thing was loose for some time...

Apr 30, 2014 - 3:21 PM Forum: Forced Induction · Post Preview: #1045433 · Replies: 163 · Views: 129,737
Hafkai



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QUOTE (Syaoran @ Apr 30, 2014 - 9:48 PM) *
That was pretty good. A lot of tire squealing lol.

What's the Porsche brakes from?

Thanks! smile.gif ... i definitely need a LSD....
The calipers are from a preface 996 Turbo/GT3, the caliper brackets are custom made and the discs are stock ST205.

Apr 26, 2014 - 9:42 AM Forum: Forced Induction · Post Preview: #1045095 · Replies: 41 · Views: 419,352
Hafkai



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'94 ST
7A-FE
Garrett T28 (Nissan 200SX S14)
3" exhaust, Evo 9 intercooler, forged pistons and rods, E85 fuel

First run @ 1,1bar (16psi) .. the peak at 4100rpm whas probably due to slipping wheels, peak torque should be ~ 360Nm (265lb/ft)



Second run @ 0,7bar (10psi)


Apr 22, 2014 - 2:13 PM Forum: Forced Induction · Post Preview: #1044754 · Replies: 163 · Views: 129,737
Hafkai



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Thanks for your comments smile.gif

@ kormysh8: not really, i don't think this would gain any power at all, the best solution would be a completely new intake manifold, but for now the stock on seems to be sufficient.

I finally went to the track yesterday, i was somewhat nervous and planned only to do some slow laps.... well... that was the plan ....

'94 Celica ST Turbo - Eurospeedway 21.04.14 .... starting behind the ST205 was a bad idea... i just had to go WOT...

The suspension seriously needs a new setup... the car corners like a rwd without the corner exit grip .... very loose rear end, but lots of fun wink.gif ..
But even with the crappy traction i managed a top speed of 132mph on this track, faster than i thought.

Apr 15, 2014 - 2:05 PM Forum: Forced Induction · Post Preview: #1044122 · Replies: 163 · Views: 129,737
Hafkai



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Back on the streets smile.gif ... 7A-FTE - Garrett T28 @ 1.1bar

Still have to do lots of tuning with the new injectors and my ST205 fuelpump seems to be maxed out... but i have a Aeromotive 340 ready to go in.
But for now i`m really happy how the engine performs.




Feb 17, 2014 - 4:49 PM Forum: Forced Induction · Post Preview: #1039123 · Replies: 163 · Views: 129,737
Hafkai



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QUOTE (Poonicus @ Feb 16, 2014 - 8:56 PM) *
Tut die 7afte haben die Zündspule im Verteiler wie der 5sfe?

Es tut uns leid mein Deutsch ist einen kleinen rostig haha, mag meinen auto. XD

Haha not bad smile.gif .. and yes the stock 7a got the coil in the distributor, but not my 7a wink.gif

@ SwissFerdi

And i thought i'm the only one who likes that idea wink.gif .. i plan to install 266°/256° cams (the only option i got in germany) in the future, therefore the high redline. With stock cams theres no reason to rev that high, thats right.
A video of the tacho with the new dials, it's a bit more laggy than the stock tach due to the stronger spring on the speedo needle, but nothing too bad: Youtube

The new manifold is on the engine, build a AN6 fuel line to the stock filter, no leaks this time... and the engine is running really well with the new injectors. They're pretty loud but thats no problem, idle is a bit smoother and the throttle response seems to be a bit better.


Feb 10, 2014 - 5:03 PM Forum: Forced Induction · Post Preview: #1038589 · Replies: 163 · Views: 129,737
Hafkai



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New fuel rail and injectors are ready, i just need some fittings and stuff to build a new fuel line from the stock filter to the rail.






Jan 21, 2014 - 3:30 PM Forum: Forced Induction · Post Preview: #1036752 · Replies: 163 · Views: 129,737
Hafkai



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E85 is awesome, i will try to get some E100 for this season... no more crappy fuel that contaminates the good alcohol wink.gif .... just a little difficult to get..
And since my 650cc SARD injectors are getting a little bit to small for this stuff i will replace them with some far more modern Bosch EV14 980cc injectors.

Jan 21, 2014 - 3:16 PM Forum: Engine/Transmission/Maintenance · Post Preview: #1036749 · Replies: 3 · Views: 1,086
Hafkai



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QUOTE (Syaoran @ Jan 20, 2014 - 10:13 PM) *
...Next I need a 7A-FE rod bolt to see if the pitch is M9x1.00....

I just measured one and it seems that M9x1.00 is correct smile.gif


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