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Thread: Sr20ve+t daily driver internal tips needed

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2011-04-15 08:16:50
#1
Sr20ve+t daily driver internal tips needed
Im planning on a b13 ve+t daily driver I am already updated on the head such as double springs titaniam retainers sr16 cams etc... But what im woundering is can I keep the bottom end stock running 7-10psi? Or what should I do?it needs to be reliable Any and all hints and tips would be great thanks
2011-04-15 08:49:49
#2
stock block should be fine on 7-10

Vadim is doing a very similar build geared toward reliability, check it out:

http://www.sr20-forum.com/members-rides/33467-vadims-black-2000-g20t-sr20ve-t-build.html
2011-04-15 11:44:01
#3
VE bottom end should hold 400whp. I'm looking at 300whp just to be safe.

You can't use SR16 cams because they overlap. I want to too though. Coheed has mentioned that SR16 cams need at least GT35 to run right... Too big of a turbo that is.

Why the titanium retainers? Are you planning on reving to 8-9krpm? Depending on the turbo you go with, you may never see those RPM due to no breath left in the turbo.

Also it's probably a very good idea to go ahead and switch out the pistons and rods to DET pistons and rods. The compression will be lowered to 9.3:1 from 10.3:1. So you can run more boost, but the main advantage is stronger pistons, piston rings, and rods - more resistant to detention.
2011-04-15 12:01:25
#4
Originally Posted by Vadim
VE bottom end should hold 400whp. I'm looking at 300whp just to be safe.

You can't use SR16 cams because they overlap. I want to too though. Coheed has mentioned that SR16 cams need at least GT35 to run right... Too big of a turbo that is.

Why the titanium retainers? Are you planning on reving to 8-9krpm? Depending on the turbo you go with, you may never see those RPM due to no breath left in the turbo.

Also it's probably a very good idea to go ahead and switch out the pistons and rods to DET pistons and rods. The compression will be lowered to 9.3:1 from 10.3:1. So you can run more boost, but the main advantage is stronger pistons, piston rings, and rods - more resistant to detention.



do they make thicker headgaskets from cosworth or cometic for the ve? this can also lower the compression ratio, its not ideal like replacing the pistons, but we used to do it on honda engines all the times to lower the compression ratios. its more cost effective anyway
2011-04-15 13:12:40
#5
They do, but honestly you want those weak pistons out .

I'm actually contemplating on the idea of replacing the pistons myself. If I don't go with a good flowing exhaust manifold I will...
2011-04-15 13:20:20
#6
there is nothing wrong with boosting a 10.3:1 motor, just dont go over 10psi and it will be fine. we used to boost the UK 10:1 motors all the time
2011-04-15 13:23:37
#7
Boost pressure does not kill pistons.

Detonation does.

You can run way more than 10psi as you want as long as you keep the detonation away.
2011-04-15 13:25:47
#8
Smaller turbos= more heat

A decent sized turbo (GT30R) will be alot easier at 15psi on the motor than a T25/T28 at the same pressure.

The only weak point would be the rods above 430+hp.

Combine a 30/35R with a 4cw crank and 10.3:1 comp and you have a nasty street machine once tuned.
2011-04-15 13:46:46
#9
well you could run more psi if you are way conservative on the fueling and the ignition map. there will always be a threshold where having the higher compression is still going to hender you from being able to push more power. its all in the tuning really
2011-04-15 13:56:31
#10
With his goal, he will never reach that threshold.

At 10:1 compression I ran 18-20psi on a 35R VET @ 15 degrees peak timing on 93 pump.

A year later I added meth injection and ramped it to 23-24 degrees peak. 3 years later the motor is still alive and strong.

I am now around 11:1 and plan on running the same pressure on pump and 25-30psi on meth.
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