Best Performance Mods for N/A 5AT..

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Mar 5, 2008 | 05:24 AM

#21

T_K

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From: Chicago

Quote:

Originally Posted by 2fast4ya

I read a previous post about types of exhaust and each one makes power
differently, for example i have y-pipe system with the oem style big canister
with the two tips(fujitsubo legalis-r) and it makes a lot of mid-range power
which i like for corner exits on road course, i have heard that true-dual
systems make power up top only and y-pipe single exits make power differently
as well

Layout doesn't matter. The only reason duals tend to give higher peak gains, is due to 2 60mm pipes or 2 70mm pipes being able to flow higher than a single 76.3mm(3inch) pipe. That doesn't really mean much, a well designed stock style exhaust layout, or a well designed single exit, can make just as much power as a dual and vice versa.

TK

Mar 22, 2008 | 09:18 PM

#22

03aeroZ

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anyone know much about the a/t valve body upgrade for the tranny? any good ones and what does this cost to have done?

Mar 23, 2008 | 07:43 AM

#23

coachk

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Quote:

Originally Posted by 03aeroZ

anyone know much about the a/t valve body upgrade for the tranny? any good ones and what does this cost to have done?

Faster and harder shifts...a must for the 5AT. SGP and GTM have them and they cost between 800-1,000 dollars. Also check with Sharif from Forged Performance.

Mar 23, 2008 | 12:07 PM

#24

coachk

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For those of you with 5AT's go to the vid section and pull up "Daniels STS rear mount turbo" vid and you'll see an upgraded VB in action.

Sorry OP for going OT.....

Mar 23, 2008 | 04:21 PM

#25

03aeroZ

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From: monticello, illinois

i have watched that vid, but what is really making the car shift faster...the turbo or the VB upgrade? I would think the VB upgrade is something you would notice driving the car more than listening to it drive by you. just my $0.02

Mar 23, 2008 | 04:46 PM

#26

coachk

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Quote:

Originally Posted by 03aeroZ

The turbo has nothing to do with the tranny shifting faster,that would be the VB that makes it shift faster. If you have ever been in a turboed car without a VB upgrade and then went in one with a VB upgrade then you would be able to watch the vid and say that guy has an upgraded VB...trust me

Mar 23, 2008 | 05:04 PM

#27

03aeroZ

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From: monticello, illinois

ah..ok. I just assumed that since the turbo would make the car accelerate faster, then it would shift faster (faster climb in speed=faster shift was my justification, ill justified i guess).

so it makes shifts faster/more crisp. any other benefits?

Mar 23, 2008 | 05:23 PM

#28

coachk

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Faster and crisper shifts which will also keep the turbos in boost, as opposed to the 6MT that when you shift in boost the boost is reduced, unless you are Alberto of course

Mar 23, 2008 | 05:32 PM

#29

03aeroZ

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From: monticello, illinois

what improvements in 0-60 or 1/4mile? thanks for all the info so far.

Mar 23, 2008 | 05:32 PM

#30

Murfdizzle21

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maybe ill just mod the outside till i pay it off... then boost...

Mar 23, 2008 | 05:33 PM

#31

MardiGrasMax

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Its noticalbe when you add a VB NA. Its much more noticable with boost. I had a stock VB in for my motor breakin and put the SGP VB back in on Friday. With the stock VB I would hit the revlimiter on the 2-3 shift, with the SGP it bangs quick much quicker and firmer! Highly recomanded!!!

Mar 23, 2008 | 05:38 PM

#32

coachk

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Quote:

Originally Posted by Si3lv5er0Z

maybe ill just mod the outside till i pay it off... then boost...

Keep the outside a sleeper(stock) and put your money in boost, its much more fun

Mar 23, 2008 | 05:41 PM

#33

coachk

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Quote:

Originally Posted by 03aeroZ

what improvements in 0-60 or 1/4mile? thanks for all the info so far.

It was a long time ago when I put the VB and TC in,but IIRC it knocked 2-3 tenths off my 1/4 mile time.Most of that was from the TC

Mar 24, 2008 | 03:26 PM

#34

superchargedg

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From: timonium,md.

I had the stillen stage4 for awile and when shifting i never hit the rev limiter but when i put on the greddy twins all i did was hit the limiter.I installed a forged performance vb and can shift quite fast enough now.

Mar 25, 2008 | 08:58 AM

#35

Azreen Khan

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Quote:

Originally Posted by superchargedg

How much is the VB Forge Performance? btw how many whp is your car?
Still shift good enuff?

Mar 25, 2008 | 03:33 PM

#36

superchargedg

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From: timonium,md.

Quote:

Originally Posted by Azreen Khan

How much is the VB Forge Performance? btw how many whp is your car?
Still shift good enuff?

Forged stopped doing them cause they had a big problem with one but it is essentially the same as sgp,s i think.Since i have the sh!tty borla with blown out cat convertor material in it all i got was 351rwhp and 392rwt on a auto on a dynodynamics.
My tuner said to get rid of the restrictive borla and put in a true dual and there is easily 40-50 more rwhp in it.

Dec 17, 2008 | 08:47 AM

#37

Murfdizzle21

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bump

Dec 17, 2008 | 11:43 AM

#38

terrasmak

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From: Sin City

Best mod?? 6mt !!!!

Dec 17, 2008 | 08:19 PM

#39

THe Emperor

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From: Misawa, Japan

^^^Wrong!

Dec 25, 2008 | 10:19 AM

#40

leg killa

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what was NEXX talking about with the exhaust?im trying to go the same road..i buy lil upgrades here and there but still want to keep those mods for F/I minus the CAI that i got...he was talking about the exhaust thing

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