S Trim or T trim

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Apr 7, 2012 | 10:33 AM

Z51 BLK VET

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S Trim or T trim

I am sure this question has been raised a million times, but bare with me folks as I get up to speed.

Got a 07' LS2, stock bottom end but have LS3 heads, Comp Cam 224/228
LG Heads, ported TB.

I have a current SQ Trim from A&A and only put down 575 RWHP at 8.91 lbs of boost running a 3.6" pulley. Looking to upgrade to Andy's latest kit but unsure if I should go with the T-trim or regular S-trim on the stock bottom end.

Love the way T-trims sound and for later down the road when I think about forging the bottom end or doing a motor swap I think the T-Trim will be able to have the power to keep up.

Though, on the stock bottom end will a T-trim be to much for the motor as it stands today? I don't want to have a dog chasing the tail type of scenario.

What do you guys recommend? S trim or T trim?

Apr 7, 2012 | 11:20 AM

Detoxx03

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From: Detroit

T-trim so you don't have to spend money over and over. Get it over with right away and get the bigger blower.

Apr 7, 2012 | 02:14 PM

txvettefan

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From: Mercedes Texas

Can you tell the difference visually between the Si & T? Perhaps model#?

Apr 7, 2012 | 02:16 PM

algZO6

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From: El Paso TX.

t-trim all the way!!!
http://www.lsxtv.com/news/video-al-g...nes-at-dallas/

Apr 7, 2012 | 02:49 PM

Unreal

Team Owner

Joined: Nov 2007

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From: Gilbert AZ

T-trim.

Apr 7, 2012 | 10:05 PM

FloydSummerOf68

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From: Missouri City Texas

I'm making 625 on stock motor with the Si Trim.

I'm perfectly content with that because any more and I'd need an R compound tire, which I don't want to run on the street. Right now I can hook 2nd gear WOT, and that's perfect for me.

If you want over 700rwhp go T trim. If you want under go Si Trim.

Apr 7, 2012 | 10:19 PM

Andy@A&ACorvette

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From: VENTURA Ca

The Si will make over 600 without even breathing hard.
The T Trim likes to be spun harder. If you put a T Trim on with the same pulley, I doubt there would be much difference. It will probably make less down low.
If you spin the T Trim hard enough to take advanatage of it's high RPM airflow, you'll have more boost that you want for a stock motor.
Now if you're planning on building a motor in the near future, it may pay to do the T Trim.

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Apr 8, 2012 | 11:37 AM

Z51 BLK VET

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Thanks for the responses everyone! T trim it is.

Hey Andy,

I bought that kit from you on Friday and sent you an email looking to swap the S trim for the T trim. I am tired of doing things twice and agree the T trim will be a better move given the plans for the car. Is a 3.4" pulley run the T trim at its preferred RPM range? Or what pulley would you advise given my set up?

Thanks everyone!