1992_Talon_tsi
10+ Year Contributor
- 384
- 2
- Dec 20, 2009
-
MIAMI,
Florida
Guys just wanted to know if ia n/t engine would take 16psi with supporting mods? right now im running on 10psi but im trykng yo see how dar i could get with this engine?
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This a bench racing thread, which is not only against the rules, but ghey.
Get to a dyno and find out.
It should be fine with supporting mods and a good tune. If it was a 420a I personally wouldn't go for more than 10psi. Just my 2 cents.
This isn't bench racing you jack-offs. Go stick your bench racing hard on's in a bench vise and clamper down.
Yes you can up the boost to 16psi, as long as you have the fuel for it.
I used to run mine just like that. With full timing too. What would happen is after a while my car would feel really slow, because small amounts of knock over time would set the octane to 0, and then you have really retarded timing. I never broke anything like this in the 4 years I had it.
Do you have any way to tune? If you could pull about 1-2* of timing out of the top two load rows in the timing map, it would help a bunch. You could probably get away with setting your cas back to 2 or 3* btdc. It still might knock some and pull timing, but it shouldn't be as bad.
Just make sure you log it for a bit (several pulls) and see whats going on. As long as your knock counts are under 5, you should be ok.
I certainly wouldn't go much past 16psi unless you have full timing control.
I was the one you read about making 320whp on E85 450's and a dieing china 16g. When I took that motor apart it had broke ringlands on all 4 pistons. But that was after a few 30psi 25* advance 15:1afr 1g mas over run pulls.
Wow. I'm on the fence right now about whether or not to turbo my 94 NT 7-bolt, or just replace the engine. Ya' know, you can get a complete, running, 6-bolt turbo long-block for under $500? I bet your "forged internals" are gonna cost a lot more than that, and you still won't have the groovy piston-cooling oil squirters.
didn't sound like bench racing to me...
This isn't bench racing you jack-offs. Go stick your bench racing hard on's in a bench vise and clamper down.
Yes you can up the boost to 16psi, as long as you have the fuel for it.
I used to run mine just like that. With full timing too. What would happen is after a while my car would feel really slow, because small amounts of knock over time would set the octane to 0, and then you have really retarded timing. I never broke anything like this in the 4 years I had it.
Do you have any way to tune? If you could pull about 1-2* of timing out of the top two load rows in the timing map, it would help a bunch. You could probably get away with setting your cas back to 2 or 3* btdc. It still might knock some and pull timing, but it shouldn't be as bad.
Just make sure you log it for a bit (several pulls) and see whats going on. As long as your knock counts are under 5, you should be ok.
I certainly wouldn't go much past 16psi unless you have full timing control.
I was the one you read about making 320whp on E85 450's and a dieing china 16g. When I took that motor apart it had broke ringlands on all 4 pistons. But that was after a few 30psi 25* advance 15:1afr 1g mas over run pulls.
hey i have a quick question for you. i have a 4g67, im wanting to throw a 14b on, im going to be using 92 on evo 560cc with a rewired dsm pump or 255, im going to be running link with a vr speed front mount gm maf and 3inch. you think that i could handle say 12-16psi?
I'm not sure what a 4g67 is. I think is some sort of a 1.6l? The chambers are 4cc smaller, but I dunno what the compression ratio is. If its under 10:1 you should be just fine, just make sure you watch your knock. My guess is you'll end up with somewhere near 15* advance at 7000@12 psi. Should be fun. I'd consider getting some 264's or 272's (any kind except BC), a 7cm housing for the 14b, and a smim, so you will make power up around 8000. at 12 psi you might be over 350whp on 92 oct. AND, it will be better for your fwd because there wont be as much low end torque.
Good luck with it!
its the dohc 1.8l same block, lighter weight crank 9:1, i have a set off fp2 and springs i can run.
Oh, ok. So its a short stroke 4g. Yeah put them fp2's in it, and get a good intake! Make sure you get a 7cm exhaust housing for it. That will work perfect! Keeping the boost down will let the 14b keep the airflow up into the higher revs.
ya i was looking at the 7cm housing, small bore, same 88mm stroke just light weight crank. same rods. smaller pistons. i need to find a good 2g intake manifold
Guys just wanted to know if ia n/t engine would take 16psi with supporting mods? right now im running on 10psi but im trykng yo see how dar i could get with this engine?
Ahh, ok. I'm pretty sure that that head uses the 1g style ports. I think I have a 4g67 head on my car right now.
If by supportting mods you mean forged pistons, .