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Oct 31, 2017 - 1:18 PM Forum: Forced Induction · Post Preview: #1094068 · Replies: 154 · Views: 110,266
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: 17,786
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: 154 · Views: 110,266
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: 154 · Views: 110,266
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: 619
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: 154 · Views: 110,266
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: 1,584
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: 154 · Views: 110,266
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: 154 · Views: 110,266
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: 1,178
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: 154 · Views: 110,266
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: 154 · Views: 110,266
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: 154 · Views: 110,266
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: 154 · Views: 110,266
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: 154 · Views: 110,266
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: 154 · Views: 110,266
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: 386,875
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: 154 · Views: 110,266
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: 154 · Views: 110,266
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: 154 · Views: 110,266
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: 154 · Views: 110,266
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: 154 · Views: 110,266
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: 912
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


Jan 15, 2014 - 2:05 PM Forum: Forced Induction · Post Preview: #1036235 · Replies: 154 · Views: 110,266
Hafkai



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Just finished another little winter project wink.gif started out with a ST202 rev counter i installed that was a little inaccurate.. searched a way to calibrate it and found out that you can alter the movement of the needle quite a bit. Enough to let it travel twice as much with the same rpms, or the opposite way with the speed indicator.

Doesn't look perfect but it works.. smile.gif



And a short video where i was testing the modified hardware with the old dials.

http://www.youtube.com/watch?v=LIYlkdgLK0Q

Jan 13, 2014 - 5:52 PM Forum: Forced Induction · Post Preview: #1036091 · Replies: 154 · Views: 110,266
Hafkai



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Small update... i bought a simple compression tester and this is the result: cylinder 1-4 : 190 | 188 | 187 | 186 psi ... I'm pretty happy with those numbers.

Then i build a scale to measure the corner weights of the car that is able to weigh up to 500kg (~1100lbs) since i wasn't able to find one thats affordable.
Surely not as precise as a professional corner weight scale but enough to get an idea of the cars weight distribution smile.gif









The only problem is that i only have one scale.... so i have to get all the other wheels on the same height and it takes some time to measure every corner... but im not doing this every month so it's ok wink.gif

Weights without driver and full tank of E85:

FL 745 lbs | FR 815 lbs / 63%

RL 485 lbs | RR 428 lbs / 37%

Total 2473 lbs

Weights with driver:

FL 813 lbs | FR 835 lbs

RL 555 lbs | RR 432 lbs

Total 2635 lbs

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