Injector upgrade needed with bigger cam?

Reply Subscribe

Thread Tools

Search this Thread

Jan 24, 2010 | 10:11 PM

#21

Bill Curlee

Tech Contributor

Joined: Dec 1999

Posts: 32,910

Likes: 2,402

From: Anthony TX

CI 6,7,8,9,11 Vet

St. Jude Donor '08

Quote:

Originally Posted by marc rud

I am using C6 90mmTB, intake, and injectors..33#'s I believe... Anyone using these on their C5??? What kind of power will they support???
Is it worth it to have them sent out to have them flow matched, and if so who to send them to...? What does Mr. Curlee think about this combo? Going to use a Mayhem II cam, both TB and LS2 manifold are ported.

Thanks,
Marc

Marc

I have 42's in my 02 Z (at the advice of Stephen) on a ported FAST 90 Ported 90 MM TB and WHIPLASH CAM, and I am at a conservative 450 RWHP and there working fine.

The ONLY way your going ti know if there adequate is t data log the engine on the road/track in actual dynamic operation.

Data Log your set up and see what your Fuel Injector

Jan 24, 2010 | 10:53 PM

#22

deadcafe

Burning Brakes

Joined: Aug 2009

Posts: 816

Likes: 0

From: Virginia Beach Virginia

Quote:

Originally Posted by 94brick

I have pulled the trigger on a new cam for my 02 Z. I am now gathering the other parts for the job and the question of upgrading to larger injectors has surfaced. I am hoping to be around 400-420 rwhp when all said and done. Again just cam and full exhaust at this point, no heads or intake. With that said am I still within the stock Z06 injectors limits? In my last search I read perhaps that 450 rwhp was the limit of stock injectors. Comments appreciated.

Listen wisely to this story........ My friend with an 03 Z06 and a set of ARH 1 7/8 Long tubes recently installed a Decent size low .600 lift int and exh. a nice 113 LS and a 235-238 duration,,,not exact but close. He as the stock everything else.. I am running a killer poorly tuned set up of a H/C/I/E and many other things,,,,,,, Mario came up here for the weekend and we raced around, in the end whoever spun lost!! I drove his car and the tune was spot on (great job Ed Va. Speed) I was hard pressed.... I was Impressed.. a simple cam upgrade is going to make your car a beast. Injectors are something you might need but liik into a higher flowing injector that your tuner is able to work with.. The tuner I am going to informed me the SVO's were garbage!!! and that factory injectore with a higher flow are more tune friendly. So a cam only mod,, you will not require injectors, but you might need tires...

Jan 25, 2010 | 05:49 AM

#23

Z06Frank

Racer

Joined: Aug 2007

Posts: 317

Likes: 0

From: Shediac New-Brunswick

I have some FAST #36 in my 02 Z06 with MS4 Cam, Fast 90, PRC 215 heads. Runs great.

Jan 25, 2010 | 07:30 AM

#24

deadcafe

Burning Brakes

Joined: Aug 2009

Posts: 816

Likes: 0

From: Virginia Beach Virginia

Quote:

Originally Posted by FrankyG

I have some FAST #36 in my 02 Z06 with MS4 Cam, Fast 90, PRC 215 heads. Runs great.

With your cam profile did they have to fly cut the pistons for valve clearence? I am curious as to whether I can jump to a 1.8 rocker arm which will make turn my .595/.604 into a .630/.640 lift. I do not want to create a prob with clearence though. How impressive is the MS4?