This GB will expire on the 11th

1. quadracer0387 (intake and blue coupler) PAID
2. Sunburst_SS PAID
3. Toyotech
4. IamTvor PAID
5. joselo6 PAID
6. lsjwannabe
7. Boossted
8. ninja44
9. silentd PAID
11. RedSSBaltSC (black coupler) PAID
12. Coop
13. Rodimus_Prime
14 & 15. r0k0 (with intake no filter) (another spacer with 1/8" npt for meth) PAID *payment for one
16. 607Motorsports PAID
17. my_bd (with black coupler) PAID
18. RG4
19. Freakenhye
20. Hockeyman0920
21. burntorange PAID
22. Jumpin Fool (with intake polished) PAID
23. Stihl (with intake red coupler) PAID
24. SS/SC05/19/05 PAID
25. K-Train04RL (with intake)
26. Omega_5 PAID
27. darksol4life (with intake) PAID
28. Blur.fx (with tap for meth) PAID
29. WolfmanKiknAzz PAID
30. kanabrewski (1 intake 2 spacers with one tapped)
31. SSKobald (2 spacers with on tapped)
32. Dainslaif PAID
33. Beck PAID


While waiting for a new batch of Twin Screws to come in we thought we would test something new.

We took a throttle body off a chevy Colorado 4.2L and using an adapter plate attached it to the stock supercharger. This new TB is 3.5" giving the ability for more air flow.

Results showed 1.5psi increase in boost and 2 lb/hr increase flow through the MAF sensor. We will have dyno results soon. From the butt dyno we can definitely see an increase in the lower end, more of a kick when you stomp on it.

Also we had the throttle hooked up to our full 3" intake all stainless steel and powder coated (this is a good item for anyone who has seen wear marks in their aluminum intake)

The price for the TB Spacer is $100US and $300US for the intake. $389 if you get both.


$49.99 for the spacer with a minimum of 20 people

The spacer will come with:

- Proper notch for the evac line
- a grove with gasket installed so you don't have to play around with messy liquid gasket
- longer stainless steel bolts.

Remember this spacer also provides more area for air to be stored for quicker response.

You will have to purchase your own 3.5" throttle body which you can find at a local wreckers or dealer.

 

interesting!

definately checking back to see your results

 

Yes very interesting....I can't wait for the dyno results

100 bux aint bad...and a used TB probably goes for what? about 50 bux at a junkyard? not even

 

Is the actual throttle bottle the same difference being in size?

What about the connections and sensors?

 

So if you have a cold air intake already you would have to trim it to work? And would'nt you have to tune the car for a new throttle body? and one last question. This is just a spacer for 100 bucks right?

Looking forward to more information.

 

so the colorado 4.2L tb is no different electronically than the stock lsj?

 

if you can prove some nice dyno increases i'd be the first to buy it lol

 

sorry guys, yes you have to change the ETC scalar area parameter in the tune. We also found that the Air/Fuel got slightly leaner with the increase in air flow so this would be something to fix aswell. But then again if you are running a GM tune it is rich to start with. The effect of this upgrade is similar to getting a larger intake or exhaust.

We can give you guys a deal on the tune if anyone wants us to change this parameter, the cost will be $50US.

harness is a direct fit

 

too bad you are in canada how could i get mine tuned

 

the inner diameter of the 4.2L TB is exactly 3"

you send us your PCM, otherwise we send you one but you would have to get a crank relearn at the dealer

 

wish you guys were closer i really wanted to do this

 

we did not trim our intake, but it made it a bit tighter to fit. You can cut the coupler if you have the Fujita, if you have an injen (2.5") I recommend upgrading to our 3"

yes the spacer is $100 which comes with a gasket

if we get a least 10 people intested we can drop the price to $89.99 for the spacer

 

would this basically be a waste if you didnt have a 3 inch intake?
since the restriction would still be in the intake piping regardless of the size of the TB?

 

wouldn't say it would be a complete waste as you still have more area per throttle position. Only testing would confirm this

 

wow thats nice

 

so will that be done before people order? i would assume so.

 

what gasket did you use to seal it the stock colorado one?

 

does the new TB bold directly to the SC or is that "spacer" a "adapter" because the bolt pattern is different?

 

Please dyno this asap. I am interested in what else you guys bring out to the cobalt community. So this will have to be HP tuned?

 

what test car was this on btw? What mods and can you post a log or email it to me?

 

damn 3.5"! thats almost 90mm. the stock piece is what like 65mm or something like that. def wanna see some dyno numbers on this one

 

we will shortly, yes you need HPT

 

very nice man, that would go well with the ls2 maf setup I"ll be installing shortly (damn turbo maxxed out my stock maf lol)

 

Mods:
2.7" pulley
60lb injectors
water injection
Rebel 2.5" downpipe
GMPP cat back
Rebel 3" intake

Before bigger TB: (NOTE: did not log AFR here)

http://www.rebelautoworxs.com/Logs/stock.hpl

After bigger TB: (NOTE: did not change the tune here except for the ETC scalar area parameter, so you can see there was an increase in air flow so it ran leaner and knocked a bit)

http://www.rebelautoworxs.com/Logs/2nd%20gear.hpl

Scanner config we use:

http://www.rebelautoworxs.com/Logs/ROAD%20TUNING.cfg

 

Its 3" on the inside

77mm

Paul...go sd...Fk mafs lol