Comp cams 292XFI
Originally Posted by seawolf06
The other limiting factor for RPM is the stock opti. It's not very reliable above 6500 RPM. That's why I bought the MSD unit.
Your right, I just got a new opti for X-mas.
Originally Posted by LT1nitrouZ
also your not going to shift at your peak HP mark, you will shift after that how far past depends on what the curve looks like. Basically if you make 300 hp at 5200 and climbs to 350 at 5800 and doesnt drop back below 330 until 6200 you are going to shift at 6200 not 5800 get my drift? So even though comp may say that cam peaks power at 6200 you still wont be shifting until around 6600 or so, and basically that is asking to spin bearings. All of this is not just guessing... how do you think they spec cams? They dont just say hey... this sounds good hope it works... I assume there are formulas, and some math that delivers a resulting cam spec that depends on more variables than I care to count. Not real sure how they spec them exactly, but I promise SSstrokerAce is not just guessing 
Originally Posted by 1997bird
Make sure that you call Comp Cams for the proper valve springs. I have a feeling that the are going to tell you to use their #26921-16 dual spring instead of the 918's. Bret is saying in the other link that the 918's are a good spring for the app that was being discussed there. But on your cam, the lobe profile's will not work with the 918 spring.
Originally Posted by onephatZ28
Thanks,I will call Comp today.I will tell you what they tell me to run
I hope it works for you.
Originally Posted by 1 BLOWN V8
They will tell you to run a LS1 and sell the LT1. J/K
I hope it works for you.
I hope it works for you.
so did you get your Mustang. Ken
Joined: May 2004
Posts: 1,593
Likes: 267
From: Halfway back on the Highway to Hell...again!
After reading through all this bickering, bottom line is if you wanna a REAL race car. hydraulic lifters are not in the equation. AND I'm sure Bret any any other experienced race engine builder will tell you. But no-one wants to hear that because most think that "modern technology" is too good for that. Well, we still haven't got Warp drive so the hydraulic lifter still can't efficiently handle high rpms which is the end result of a large duration cam. Correction...they will, for a "while"...a short while.
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Originally Posted by SAPPER
After reading through all this bickering, bottom line is if you wanna a REAL race car. hydraulic lifters are not in the equation. AND I'm sure Bret any any other experienced race engine builder will tell you. But no-one wants to hear that because most think that "modern technology" is too good for that. Well, we still haven't got Warp drive so the hydraulic lifter still can't efficiently handle high rpms which is the end result of a large duration cam. Correction...they will, for a "while"...a short while.
Joined: May 2004
Posts: 1,593
Likes: 267
From: Halfway back on the Highway to Hell...again!
Like the saying goes, you have to give to get. So, if you want a "RACECAR" the you need to build a race motor.
I agree totally though. Adjusting valves is a royal PITA. But on every board I see, everyone has opinions but the hardest part is to try and explain that race is race and streetability is the goal for alot of manufacturers. But when someone asks the question and says "It's a track car" Then there should be no question what the answer should be.
I agree totally though. Adjusting valves is a royal PITA. But on every board I see, everyone has opinions but the hardest part is to try and explain that race is race and streetability is the goal for alot of manufacturers. But when someone asks the question and says "It's a track car" Then there should be no question what the answer should be.
SAPPER.... when you can get hyd rollers to turn 9200rpm (mainly because the rules make you) the technology is there to do so and make the parts work... problem is it doesn't save you a ton of money!
Bret
Bret
I just want to run good at the track and that's it,the hole point of this thread was to see if someone was running this cam too. THANKS FOR ALL THE INPUT.If the cam does not work, like all of you think,I will be the first one to admit it,but I already got the cam, so wish me luck 
Joined: May 2004
Posts: 1,593
Likes: 267
From: Halfway back on the Highway to Hell...again!
I will support you and I know it sucks to buy something and can't afford to take a loss and will deal with what you got. All I can say is I really hope it works out great. If not, run it, be happy with it and know that there is a stroker in your future and stay optomistic.
Bret, I had a Hyd roller cam once that I repeatedly turned 84-8600 rpm. Granted it cost me in the end. But it was great for a good while. Actually I went through 2 sets of springs before 2 of the lifters gave out.
Bret, I had a Hyd roller cam once that I repeatedly turned 84-8600 rpm. Granted it cost me in the end. But it was great for a good while. Actually I went through 2 sets of springs before 2 of the lifters gave out.
Originally Posted by SAPPER
I will support you and I know it sucks to buy something and can't afford to take a loss and will deal with what you got. All I can say is I really hope it works out great. If not, run it, be happy with it and know that there is a stroker in your future and stay optomistic.
Bret, I had a Hyd roller cam once that I repeatedly turned 84-8600 rpm. Granted it cost me in the end. But it was great for a good while. Actually I went through 2 sets of springs before 2 of the lifters gave out.
Bret, I had a Hyd roller cam once that I repeatedly turned 84-8600 rpm. Granted it cost me in the end. But it was great for a good while. Actually I went through 2 sets of springs before 2 of the lifters gave out.
Originally Posted by slckstr96
is this cam you guys are talking about with 1.5rr's or 1.6rr's, because i am putting the same cam in my 396, depending on this.
Last edited by onephatZ28; Jan 15, 2007 at 07:52 PM.
