TVS GT500 in need of more power, suggestions appreciated!

[rfugio68]

Hello guys,

I currently have a 2010 gt500 that I race in the half mile, I have been trapping 154 and would like to hit 160. Here are my mods,

-Trinity tvs with 2.5" pulley
-VMP 67mm tb with JLT 123MM intake
-orx
-id1000's with VMP dual bap
-c&r heat exchanger

Car cade 666rwhp/626rwtq on e85.

I have thought about getting my tvs ported and adding longtube headers with a 2.4" pulley. Would those be worthwhile mods? If not what would you guys suggest?

Thanks in advanced!

 

[RBB]

Long tubes and a 10% lower sound good in your case. You can definitely afford to run some more boost on E85.

 

[Speedboosted]

http://www.weirracing.com/product/weir-racing-low-friction-8-8-gear-and-bearing-set-s197/

By far the best bang for your buck, especially with your mod list. Get them in 3.31 if you're wanting improvements in the half mile.

 

[GT500RedStripe]

A twin screw blower will continue to produce higher boost at lower temps above 5,000 RPM.

 

[brian98svtsnake]

Long tube headers and the 2.4 should be good for an additional 40-50 rwhp. That combined with a ported blower should make a nice difference.

 

[rfugio68]

http://www.weirracing.com/product/weir-racing-low-friction-8-8-gear-and-bearing-set-s197/

By far the best bang for your buck, especially with your mod list. Get them in 3.31 if you're wanting improvements in the half mile.

Think I can hit 160 in 4th with 3.31's on a 28" tall tire? currently I have to shift into 5th around 148mph, not having to shift into 5th would be huge!

I see that you make the same amount of power that I do and trap the exact same in the 1/2, is yours a 2010 as well?

 

[2006YellowGT]

Last September I ran 147 in the half mile. I made 637 rwhp then. I have since ported my blower and swapped my rear suspension over to BMR. I had my car tuned at Pro Dyno two weeks ago and I made 673rwhp and 642rwtq. I have another event in two weeks so I hope I can improve on my previous mph.

 

[Sielmo]

I did a TVS install on mine with a 2.4 pulley. See my signature for my results. Not sure why my numbers are different from yours other than I can guess that my tuner and LT headers have an influence.

 

[rfugio68]

Last September I ran 147 in the half mile. I made 637 rwhp then. I have since ported my blower and swapped my rear suspension over to BMR. I had my car tuned at Pro Dyno two weeks ago and I made 673rwhp and 642rwtq. I have another event in two weeks so I hope I can improve on my previous mph.

Definitely let me know what you trap! How was traction for you when you ran 147?

 

[2006YellowGT]

I had zero traction in first and second. Third was not much better. The event is held on a private air strip so the surface is not the best. With all the new BMR items I should have most of my traction issues fixed.

 

[Black Sex]

I would try long tubes. They are a little spendy and labor intensive but worth it IMO. I haven't ran my car in the half mile but in the 1/4 I was trapping 124-125 then I added LT's/ OR-H and 56# injectors and was trapping 129-130 with a DA of about 3500'. Still with the factory catback.

Mods: FRPP TVS w/2.6
JLT127
CJ65
SW LT w/OR-H
C&R HE
91 VMP tune