Should I get a 'bigger' cam??
Thread Starter
Instructor
Joined: Jan 2005
Posts: 152
Likes: 0
From: Mentor Ohio
Should I get a 'bigger' cam??
I like the cam I have in my '99 MN6 very much. It is the Futral F-13 (230/232). But after having it in the car for a few years, I am now thinking.....of course....I want MORE!! I guess I am wondering if a bigger cam will give me significant hp gains. I want to avoid flycutting and an wondering how big of a cam I can get W/O flycutting or if its even worth it. I would like to get 450rwhp!
Current Mods-
Vararam
Ported LS2 TB
FAST 90
Futral F-13 cam
Texas Speed stage II P/P LS6 heads
Long tubes
Cat removal
Magna flow exhaust
3.73 rear
422rwhp/380ft lbs
Current Mods-
Vararam
Ported LS2 TB
FAST 90
Futral F-13 cam
Texas Speed stage II P/P LS6 heads
Long tubes
Cat removal
Magna flow exhaust
3.73 rear
422rwhp/380ft lbs
Team Owner
Joined: May 2006
Posts: 21,473
Likes: 356
From: Palmdale, Ca----- 2009 Cyber Gray 4LT A6 F55 452 RWHP 422 RWTQ- RIP 1998 C5 734 RWHP & 585 RWTQ-----
If you do a set of TFS 215 Heads you will more than likely get what you want with your current cam!
I watched as a set of Patriot LS6 Heads were removed in favor of a set of new TFS 215's and it went fom 413 RWHP to 443 RWHP, these heads are awesome.
It might be what you want
Thanks,Matt
I watched as a set of Patriot LS6 Heads were removed in favor of a set of new TFS 215's and it went fom 413 RWHP to 443 RWHP, these heads are awesome.
It might be what you want
Thanks,Matt
Team Owner
Joined: Mar 2005
Posts: 32,269
Likes: 35
From: Somewhere between mild insanity and complete psychosis
How do you use the car? 1/4 mile track or street warrior? If it is a street car, any more cam will hurt low end on a 346cid motor. If it's a 1/4 mile track car, step up to a g5x-3 or something similar.
Le Mans Master
Joined: Nov 2003
Posts: 8,004
Likes: 250
From: Tampa Fl
St. Jude Donor '12-'13-'14
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Thread Starter
Instructor
Joined: Jan 2005
Posts: 152
Likes: 0
From: Mentor Ohio
I thought that the numbers were low too!! I was very disappointed after all the installs that I only came up with 422rwhp. I am not sure what to check on the tune. The car runs and idles great. The 'Tuner' claims that he got her "Dialed in".
I guess I just took the tune for granted. I assumed that a car is either tuned or not. Can an experienced tuner switch things around and make dramatic gains over another tuner? I was of the opinion that 'IT IS WHAT IT IS' and that I would have to change parts to find more hp.....
I guess I just took the tune for granted. I assumed that a car is either tuned or not. Can an experienced tuner switch things around and make dramatic gains over another tuner? I was of the opinion that 'IT IS WHAT IT IS' and that I would have to change parts to find more hp.....
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
Unless the tune is totally hosed, I can't imagine you would get much more if any from the tune. My tuner showed me some of the things that people always speak about, for instance 13:1 AFR. When he leaned mine to 13:1 it made about 2 more hp. He keeps mine at a richer AFR on the dyno realizing it will lean some on the street, i.e., safer tune. As for timing, he brings it up to just under knock retard, where do you do from there? I also think there are some real "ringer" dyno's out there, we seem to consistently see huge numbers yet when other try to duplicate the numbers/setup they fall short, really makes me wonder as the dyno can be "fooled", its just a measurement tool.
So without getting too hung up on numbers, the two areas that I would look at are the FAST and the heads. As a systematic approach, it might be worth porting the FAST (contact Tony Mamo for this) to see how it responds, from there if still not satisfied I would look to the AFR 205's. Bump the compression up as well when you do this. Talk to Tony about the heads as well.
So without getting too hung up on numbers, the two areas that I would look at are the FAST and the heads. As a systematic approach, it might be worth porting the FAST (contact Tony Mamo for this) to see how it responds, from there if still not satisfied I would look to the AFR 205's. Bump the compression up as well when you do this. Talk to Tony about the heads as well.
Burning Brakes
Joined: Apr 2005
Posts: 1,068
Likes: 0
I thought that the numbers were low too!! I was very disappointed after all the installs that I only came up with 422rwhp. I am not sure what to check on the tune. The car runs and idles great. The 'Tuner' claims that he got her "Dialed in".
I guess I just took the tune for granted. I assumed that a car is either tuned or not. Can an experienced tuner switch things around and make dramatic gains over another tuner? I was of the opinion that 'IT IS WHAT IT IS' and that I would have to change parts to find more hp.....
I guess I just took the tune for granted. I assumed that a car is either tuned or not. Can an experienced tuner switch things around and make dramatic gains over another tuner? I was of the opinion that 'IT IS WHAT IT IS' and that I would have to change parts to find more hp.....
Better heads will solve your problem, IMO. Look into the TFS 215s, you can run alot of compression without flycutting cause of the 13.5* valve angle. I ran 236/242 on 113 for a bit with those heads at 59cc without flycutting with lots of room to spare.