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conserning boosting

PostPosted: Sun Jan 23, 2011 3:39 am
by civic_vtec_94
so does any one know what the right amount of psi would be to push on an automatic d16zg cause ive heard that if you push more than 7 psi you can burn up gears in the tranny and i was wondering if more than 6 would hurt a stock motor?

PostPosted: Sun Jan 23, 2011 3:47 am
by chrono404
Figuring on how many psi to go is pointless as 10psi on a small t25 turbo is totally different then 10psi on a bigger t3/t4.

Stock rods are good till 200 hp at the crank. Going past 200hp on stock rods is only asking for trouble.

You can make as much boost you want until you hit 200hp. I am not sure how much abuse a D Series automatic can take. But if tune for 200hp at the crank the tranny should stay happy.

PostPosted: Sun Jan 23, 2011 3:51 am
by civic_vtec_94
alright thanks iwasnt goin for much but id realy like to make the little d16z6 push 200hp i just dont know where to start im new to the tuning game and im here to get some helpful tips and tricks.. :thumb:

PostPosted: Sun Jan 23, 2011 6:00 pm
by ej1lover
Im going to boost my z6 in the spring, im going to run 5 pounds off the wastegate spring,, well 5.9psi :) but i think 6 will be alright.

PostPosted: Sun Jan 23, 2011 10:41 pm
by civic_vtec_94
k thanks for the advice.. :thumb:

Re: conserning boosting

PostPosted: Sun Jan 23, 2011 11:51 pm
by 92hatchie
civic_vtec_94 wrote:so does any one know what the right amount of psi would be to push on an automatic d16zg cause ive heard that if you push more than 7 psi you can burn up gears in the tranny and i was wondering if more than 6 would hurt a stock motor?


automatic? in my opinion convert to a 5 speed

PostPosted: Mon Jan 24, 2011 1:38 am
by civic_vtec_94
ive been wanting to but havin trouble finding parts cause if i do that i will need pedal assembly, tranny, shifter shift linkage exct.. Having trouble roundin up parts if you know a place to getem please let me know ive been wantin to convert to a 5 speed since i got it..

PostPosted: Mon Jan 24, 2011 2:32 am
by 92hatchie
civic_vtec_94 wrote:ive been wanting to but havin trouble finding parts cause if i do that i will need pedal assembly, tranny, shifter shift linkage exct.. Having trouble roundin up parts if you know a place to getem please let me know ive been wantin to convert to a 5 speed since i got it..


yea i see.. wat i would do is sell it n buy a 5 speed.. um keep just keep rounding up ur parts.. look for part outs on craigs

PostPosted: Mon Jan 24, 2011 2:35 am
by civic_vtec_94
i have been lookin on there thanks for the advice.. :D

PostPosted: Mon Jan 24, 2011 3:29 am
by teal_dx
moving to D series since this has nothing to do with the Coupe chassis :wink:

PostPosted: Mon Jan 24, 2011 8:40 pm
by Butterzz
Teal, of your 10000 posts I wonder how many are 'Moved to...' posts :D

PostPosted: Mon Jan 24, 2011 9:19 pm
by teal_dx
Butterzz wrote:Teal, of your 10000 posts I wonder how many are 'Moved to...' posts :D


probably about 95%, I'm glad somebody is reading them :D

PostPosted: Mon Jan 24, 2011 10:49 pm
by neo27ny
chrono404 wrote:Figuring on how many psi to go is pointless as 10psi on a small t25 turbo is totally different then 10psi on a bigger t3/t4.

Stock rods are good till 200 hp at the crank. Going past 200hp on stock rods is only asking for trouble.

You can make as much boost you want until you hit 200hp. I am not sure how much abuse a D Series automatic can take. But if tune for 200hp at the crank the tranny should stay happy.


Thanks for clearing that up, but I would like to add something to what you said. I think many people are confused when it comes to boost. Most are focusing on a psi number instead of building and tuning for a hp range. Like you said, psi is useless to go by because the airflow output varies for each turbo at the same psi.

PostPosted: Tue Jan 25, 2011 5:40 am
by Butterzz
Compression also has a lot to do with it. If you get dished pistons and run like 8.0:1 compression, you'd probably hit like 18 Psi before reaching that 200hp mark.

A common misconception with boost is lower compression = better. That isn't true. If you can get a good enough tuner that can tune your car at stock (or better) compression, it will make more horsepower, faster, with more efficiency from the boost.

PostPosted: Tue Jan 25, 2011 9:58 pm
by civic_vtec_94
thanx for advice..