Cobra jet IM and boost?

Performance nut · Oct 18, 2017

Saywhen said:
I'll need to change my headers too. I have 1 3/4" kooks

I got my headers because I fully intended to go with a supercharger (Procharger is my lead choice at the moment). After seeing some stuff at Boostworks, it made me seriously consider going with a twin turbo and ditch my headers (can help offset the cost a bit when I resell I suppose).

Call Travis at Boostworks, he might be able to figure something out for you. As far as if it has been done, I have seen a videos of Cobra Jets with forced induction, just cruise YouTube.

higdominator · Oct 18, 2017

Saywhen said:
Thanks. I was always under the impression 1 7/8" was the only way to go with FI

If you don't have them and are buying your first set, then sure, go for the 1 7/8. If you already have 1 3/4 it's not worth the time or money to swap. I have 1 3/4" headers and by the look of my dyno graph and boost pressure the car was not hurting for header. The power was still going up when I had to cut it off at 7500 (max fuel system).

Pincushin3819 · Oct 19, 2017

Buy the 350GT & put a blower or turbo on it & have the best of both worlds

kcc0521 · Oct 20, 2017

I have a paxton and if I were to do it again I would go twin turbo due to the added potential. I also like the low mount turbos and no added strees to the crank.

Pincushin3819 · Oct 20, 2017

kcc0521 said:
I have a paxton and if I were to do it again I would go twin turbo due to the added potential. I also like the low mount turbos and no added strees to the crank.

3.6, stock stall, Best Et 10.43 @136MPH 93 + Octanium
I think you made a wise choice for the money ;)

kcc0521 · Oct 20, 2017

Pincushin3819 said:
3.6, stock stall, Best Et 10.43 @136MPH 93 + Octanium
I think you made a wise choice for the money ;)

The car runs great and I have been a 9.9 at 138 with the stall in it but I know i will out grow the supercharger. the main reason i didn't go with a turbo was Hellion was the only turbo company that was delivering them in a decent time and I wanted a low mount. If I had to do it over again right now i would go with a boostworks or LPF. the main thing that scared me about turbos was the possibility over over boosting the engine if wastegate or boost controller failed.

Pincushin3819 · Oct 20, 2017

I really like both BW & LPF set ups, I have a 5th gen camaro that runs a AGP kit & there are identical to them with placement. But I got my Paxton from Beefcake on black Friday for around $4800 & that was including the supporting mods except fuel system & tune. I never planned on building the motor & I never planned on going over 850whp but I most certainly agree with you, if you plan on running a built motor & below low 9's turbo is a no brainer. I would imagine race fuel/e85 & stall would still be needed for turbos running those times but seeing BW kit at that price has me kicking my own ass a little. :headbonk:

kcc0521 · Oct 20, 2017

Pincushin3819 said:
I really like both BW & LPF set ups, I have a 5th gen camaro that runs a AGP kit & there are identical to them with placement. But I got my Paxton from Beefcake on black Friday for around $4800 & that was including the supporting mods except fuel system & tune. I never planned on building the motor & I never planned on going over 850whp but I most certainly agree with you, if you plan on running a built motor & below low 9's turbo is a no brainer. I would imagine race fuel/e85 & stall would still be needed for turbos running those times but seeing BW kit at that price has me kicking my own ass a little. :headbonk:

I never thought I would want more than a 9 second car but I am starting to think about 8s now. At the track a 9 second pass doesn't feel that fast. In the street my car is way too fast.

higdominator · Oct 20, 2017

kcc0521 said:
I never thought I would want more than a 9 second car but I am starting to think about 8s now. At the track a 9 second pass doesn't feel that fast. In the street my car is way too fast.

We must have different streets, I'm looking to turn mine up to at least 1k wheel

dubster99 · Oct 20, 2017

I think people are a little too worred about this "stress on the crank" caused by blowers...especially ones that use the stock damper. I've seen turbo cars break the crank snout too.

Grabber5OH · Feb 25, 2018

Any update to your original question op? I have almost the same setup as you except i have a GT350 intake setup on the car as it sits and a CJ sitting on the shelf waiting to go on. trying to figure out if i can make the CJ work with a centri blower. Looks like Paxton/ vortec head unit would sit to close to the TB with the CJ setup just from how it looks in pics.

Saywhen · Feb 25, 2018

I've decided on swapping the CJ IM and going with the boss IM (back to stock throttle body) and going with beefcakes Paxton stage 2 blowoff package. I just got done ordering a few more parts but expect big changes in the next month or so....

Grabber5OH · Feb 25, 2018

What gears are you running OP. Im running 3:73s

Saywhen · Feb 25, 2018

Yup me too

gearhead2685 · Feb 25, 2018

Personally i think you are out of your mind to sell the CJ and switch to a worse intake. Id make the CJ work. Hell id V band the CJ if i had to.

Let me ask all of you this .......

If the oval CJ is an issue then how in the hell do Whipple, Kenne Bell, and VMP/Roush/FRPP/TVS GT500 blowers do it then? They all use oval throttle bodies too.

Ill go out on a limb amd say not being able to "seal" a CJ is a crock of shit!!

Cobra jet IM and boost?

Performance nut

Well-Known Member

higdominator

Well-Known Member

Pincushin3819

Well-Known Member

kcc0521

Well-Known Member

Pincushin3819

Well-Known Member

kcc0521

Well-Known Member

Pincushin3819

Well-Known Member

kcc0521

Well-Known Member

higdominator

Well-Known Member

dubster99

Well-Known Member

Grabber5OH

Well-Known Member

Saywhen

Well-Known Member

Grabber5OH

Well-Known Member

Saywhen

Well-Known Member

gearhead2685

Well-Known Member