This is our best to date with a H/C car.

We have been trying a few new things with our RGR heads and it is working

02'SOM SS M6
RGR S2 5.7 HEADS
224 581 112
PORTED TB
STOCK MAF
ASP CRANK PULLEY
HOOKER LT'S/ORY
LOUDMOUTH W/BOLRA XR1 MUFFLER
10 BOLT W/4.10 & 315'S

439.7 RWHP 6350 RPM
399.0 RWTQ 4600 RPM

NOTE:for those who are skeptical about a pulley the asp crank pulley picked up 8rwhp and 6rwtq

 

Damn Nice numbers, Im jelous

 

Nice!

 

Great numbers! Any idea on how much the ported TB is worth? I have a heads/cam car with the stock TB and wondered if it was a good mod...

 

personally i love pulleys as a mod, but how often do the belts fall off? saw one at a dyno day once with a belt off which made me worry...

gotta love the consistancy your pulls show.. smooth.. does it lope? would love to have that power with a stock sound...

 

I'm with you cabbage. I don't think a pulley is worth the risk for 8rwhp. I've seen people have problems with them quite often...a belt popping off, a shredded belt...even the crank pulley popping off or cracking because it's not balanced. You don't need something like that happening on the way to work, in traffic. I'm sticking with the stock hardware.

 

Dayuuuuum INTMD8! I'll be stopping buy your shop to have that same package put on my LS1(done with your great tuning of course) as soon as I graduate from college next spring.

Great #'s,

Mike

 

Where can we get the heads from and what are the flow #'s?

Mark

 

The Ported TB is good for around 4HP.

The pulleys have worked great for us and never once has a LS1 thrown or eaten belts. They are hard to keep in stock they are such a good seller.

These LS1 heads flow an honest 295cfm @ .600 Lift at 28 inches of water. $1799.99 is the cost (without the core charge)

 

How long do you expect that 10-bolt to last?

 

i see 80mm tb's in all the performance mags, but what size is a stock tb?