BACON BITES!

***SSlowBoat*** · 03-23-2014, 08:09 PM

i was told by more than one person with rear mount kits that long tubes lose exhaust velocity and heat, thus making less power than would be made on the same setup and shorties/cast manifolds/rearmount. the one guy on here has a rearmount firehawk and he said it as well. i get bored alot though, and enjoy being different. i wouldnt mind trying a rearmount with a 240+k mile hotcammed longblock. whats it gonna do? blow up? HAHAHAHAH

**firebird_1995** · 03-23-2014, 08:23 PM

Regarding long tubes vs manifolds, velocity is not an issue. Air goes in air goes out. It gets ran together at the y and goes to the turbo. Only thing that affects velocity is the diameter of the piping TO the turbo. Heat loss from long tubes vs manifolds COULD be an issue, however sts sizes their turbos differently to account for the difference in density from the hotter exhaust that a front mount encounters vs the cooler air that a rear mount encounters. The debate that typically occurs is " I have an sts kit, will long tubes help it pick up more HP?" That answer is no. There is no benefit to running long tubes vs manifolds on a rear mount. You're saying, I have long tubes, so it won't be worth it to run an sts kit. The simple solution would be (if you are convinced that long tubes are going to hinder performance in some way) is to sell them and request the buyers manifolds.

**Ryan Stout** · 03-23-2014, 08:27 PM

Originally Posted by firebird_1995

Ryan were you running 24x back then or stock pcm. I'm looking hard at seeing how hard I can run a stock bottom end on e85...

Stock pcm and original opti.

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**firebird_1995** · 03-23-2014, 09:24 PM

Originally Posted by Ryan Stout

Stock pcm and original opti.

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I think I'm going to reassemble that block I got from you into a stock bottom end, run that cam, and see what happens. E85 and see when she let's loose. Is this the block that hydrolocked and bent the rods? Maybe I should get it magnafluxed

**Ryan Stout** · 03-23-2014, 09:29 PM

Yea. I'd think its ok but wouldn't hurt. I have a stock bottom end out of that tahoe. If you want it lmk.
@firebird_1995

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**shownomercy** · 03-23-2014, 09:33 PM

The STS idea would be a horrible one.

Leave it a nice NA car and get some nitrous.

***popo8*** · 03-23-2014, 09:46 PM

Originally Posted by shownomercy

The STS idea would be a horrible one.

Leave it a nice NA car and get some nitrous.

just curious why u dont like the sts. Im impartial either way... jusy wonderin.

LTXtech.com is my DRUG!

**firebird_1995** · 03-23-2014, 09:51 PM

Originally Posted by Ryan Stout

Yea. I'd think its ok but wouldn't hurt. I have a stock bottom end out of that tahoe. If you want it lmk.
@firebird_1995

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I've actually got everything I need but aluminum heads and an lt1 crank. I have a regular 1 piece 350 crank but I'm not sure if they are the same strength/balance as the lt1. I just wanna keep it a TRUE stock bottom end to see what breaks first.

**shownomercy** · 03-23-2014, 09:52 PM

Originally Posted by popo8

just curious why u dont like the sts. Im impartial either way... jusy wonderin.

LTXtech.com is my DRUG!

I have NEVER come across a happy race car oriented setup owner.

To be clear, I am not saying a rear mount won't work cause there are numerous very fast race cars running them, but for the STS kit you will end up replacing most of it with stuff to make it more efficient and make any at all boost.