Blown headgasket FTL! Options

[OOBE]

I have no clue. Maybe 180-190 WHP. It felt pretty fast, though. It climbed to 80 very quick, and that was with two other people.

This post has been edited by OOBE: Jul 16, 2008 - 3:08 AM

[Harold_Fastwaker]

I have no clue. Maybe 180-190 WHP. It felt pretty fast, though. It climbed to 80 very quick, and that was with two other people.

hmmm.


I am looking for 225 to 240 at the wheels. But I am unsure if I want to just put the money in to the 7a or put more into a 3s. I have also considered a 7agte. Trying to do a budget road course car, so I would rather not dump $5000 into just my motor setup.

This post has been edited by Harold_Fastwaker: Jul 16, 2008 - 10:06 PM

[Taskbot]

I'm surprised that the 7A can put down that much power. Like thats double the stock HP, its kind of scary. How much did that set up cost you?

[OOBE]

I lost track long time ago. Between the price of brand new parts (I never bought cheap brand stuff or used parts) and redoing some things over and over, I could've done two 3S-GTE swaps plus mods for both. Whatever. You only live once. It's disposable income. Yeah, it's more than double the stock wheel horsepower, which is more than fine and dandy by me. The car feels great.

[CelicaST_CALI]

I have no clue. Maybe 180-190 WHP. It felt pretty fast, though. It climbed to 80 very quick, and that was with two other people.

hmmm.


I am looking for 225 to 240 at the wheels. But I am unsure if I want to just put the money in to the 7a or put more into a 3s. I have also considered a 7agte. Trying to do a budget road course car, so I would rather not dump $5000 into just my motor setup.

ehhhh...nik did a 7agte and hit like 330 i think..

[OOBE]

330 WHP is overkill on our cars. All you get is wheelspin and passengers screaming for you to stop. I rode on my buddy's 5th gen Celica (which is heavier than ours) and he was pushing about that same horsepower on a 3S-GTE and it felt twice as fast as my Supra when I was pushing 470 RWHP on it, and even when on high boost I was pushing 530 RWHP, it didn't feel as crazy as in the Celica. Power to weight ratio is a beautiful thing.

This post has been edited by OOBE: Jul 27, 2008 - 9:28 PM

[OOBE]

Well, I finally got around putting the head in. I ended up returning the Cometic 4A-GE headgasket and getting an OEM dual layer metal one. Car started up fine, but I noticed compression went back to 210, from 185 that was with the thicker, crappier headgasket it had before. No biggie. I'll try to see if I can get this thing dynoed this week (please Lord, let me finally do this) and have some numbers for you guys. Another goodie is that my registration expires this month, which means it'll be an excuse to drop it off at the bodyshop the 31st to get it fixed and painted.

[CelicaST_CALI]

sweeet!!!!!

[normality78]

Well, I finally got around putting the head in. I ended up returning the Cometic 4A-GE headgasket and getting an OEM dual layer metal one. Car started up fine, but I noticed compression went back to 210, from 185 that was with the thicker, crappier headgasket it had before. No biggie. I'll try to see if I can get this thing dynoed this week (please Lord, let me finally do this) and have some numbers for you guys. Another goodie is that my registration expires this month, which means it'll be an excuse to drop it off at the bodyshop the 31st to get it fixed and painted.

Hi OOBE,
so does your Cometic 4A-GE headgasket fit in 7AFE?

[OOBE]

I ended up returning the Cometic headgasket. It needed modification and I didn't want to gamble. I'm planning on breaking this engine (so I can install forged internals) but I want to do it in a safe way so that I know the limits of the rods or pistons or whatever breaks because of the power, so we can end this taboo once and for all. I don't want to break it while doing something unreliable, because then I will not know how much the internals could've handled. I ended up installing a new stock 2 layer metal gasket instead. Since I leaned out at 15 PSI with the 560cc injectors at the dyno, so I'm sure the fuel pump is the culprit. I bought a new one and I'm getting a bigger turbo today or tomorrow and crank it to 15 PSI again to see if I can break the 220 WHP barrier.

[trd94]

good luck on 15psi , i got to 17psi once on 94 pump gas, and i had a coupler pop. i never blew a rod or a head gasket . but i never pushed it that hard again, at 17psi when a coupler pops it scrars the crap out of you . i realy did think i blew the motor. i did not ,and ran 12psi for the rest of my cars 7afte life ....... i never had any tranny issue what so ever either.

[normality78]

OOBE,
may the force be with u.

[OOBE]

good luck on 15psi , i got to 17psi once on 94 pump gas, and i had a coupler pop. i never blew a rod or a head gasket . but i never pushed it that hard again, at 17psi when a coupler pops it scrars the crap out of you . i realy did think i blew the motor. i did not ,and ran 12psi for the rest of my cars 7afte life ....... i never had any tranny issue what so ever either.

I overboosted to 18 PSI a few times and nothing happened. This engine is stronger than people thought years ago.

Yeah, when a coupler pops, it makes such a scandal. It happened to my Supra once...but contrary to the Celica which has a MAP sensor and keeps going, it hit an imaginary brickwall that almost made me eat the windshield. Scary stuff.

I got my new turbo today. It was pulled off my buddy's Celica. It's also a T3/T4 but it's bigger, so this will be more of an experiment. It'll probably be laggy but kick hard once it spools. That combined with my auto tranny will be an interesting thing to experience.

Thanks, normality78. Tomorrow I'll install the turbo. I'm lucky that the ehxuast manifold is also 4 bolt, so I don't have to take a trip to the muffler shop to swap downpipe flanges. What worries me is that this log style manifold puts the compressor close to the the alternator bracket. That's with my smaller TO4B and it only has like two inches of clearance, and my turbine housing is the long type so it makes it clear more. I'm thinking that this bigger turbo will not fit because of the bigger diameter compressor plus the exhaust manifold being the shorty type. I'll probably have to get another manifold. We'll see.

[normality78]

I sold my entire 7afte setup months ago thinking to sell of my car but now since i've decided to keep it, im going to do another rebuilt, a better setup.

Im going slightly bigger then thn Nissan S15 stock T28 turbo. Previous i was on WRX td04L-13T turbo. Im a fan of responsive hence not going any bigger since my target is 200whp.

I may looking into ceramic coating my 7afe rod and piston also may looking into stacking up another piece of head gasket. Just to be sure although i do know on stock it should not have any problem (my ex setup fetch me 168whp with leak manifold)

by the way, perhaps you can find this usefull
http://www.zerotohundred.com/newforums/eng...o-manifold.html

http://www.4agclub.com/forum/viewtopic.php?t=25

[OOBE]

I have to fix a manifold leak. The 219 WHP was with the leak and leaning out. I'm sure that's why the boost took forever to build. Stacking up headgaskets? Doesn't sound like a good idea, man. I checked out those threads. I wouldn't trust my money to someone who barely speaks English and doesn't post a price.

[808celica]

Ho! howz this killer guy glad to see you back and posting man i'll pray that you'll make it to the dyno good lucks man

[normality78]

yeah, i dont really like the idea as well but then i've emailed Comestic for custom made a piece but they have not get back to me

[OOBE]

Ho! howz this killer guy glad to see you back and posting man i'll pray that you'll make it to the dyno good lucks man

Heck yeah, bro. How are you doing? Yes, I need a lot of prayers, because I have a feeling I'm breaking the engine this next dyno session.

[southwest2118]

Is that an OEM 7A headgasket? Because that would answer my question as to whether or not the 7A always had a metal one or if it's a 96+ thing, both engines I had are 97's so not much of a comparison. At first I thought it was a 4A headgasket because I saw the rubber gasket for that big return opening in the front but then noticed that all the holes pretty much line up with all the jaskets.

my 95 corolla with the 7afe came with a metal hg.

[OOBE]

After a lot of pain (guy that recently re-made the downpipe bent the pipe over the bottom bolt ), I took the old turbo off today and I prayed that this one would fit. I was relieved when it fit no problem. It cleared the manifold and alternator. I just had to clock it and that was it. I get my turbo flange gasket and wastegate gaskets on Thursday. I still need to install the new fuel pump, pick up some bigger injectors (going with 630cc ones), install a manifold stud on the head and do a LOT of cleaning. Rats decided to throw a party again while my car was parked for over two months. What a mess. I'm so overwhelmed at the list of things I need to replace...and pretty much everything in the engine bay needs cleaning and painting. Oh well. This is part of the game. Man, the turbo certainly looks big on this engine. I wonder how many weeks it's going to take to spool it. We'll find out in a week or so.