first tuning session of new setup
I'm wanting to learn from this point... I'm not going after you guys on this point by any means. But I see Slowhawk and other advocating small grinds, even Z06 cams. Wouldn't those cams be along the lines of a stock 99 cam?
I'd be very interested to see what you picked up just from a cam swap. I'd go for a 224/224//114 something like that... It would be a clear change from the cam you have now. A 215/215 would have more intake duration than what you run now but not much more on the exhaust.
I'd be very interested to see what you picked up just from a cam swap. I'd go for a 224/224//114 something like that... It would be a clear change from the cam you have now. A 215/215 would have more intake duration than what you run now but not much more on the exhaust.
Originally Posted by Tiago
yea I agree John, can someone post specs on a stock ~03 Z06 to compare with mine? they don't seem to have a problem using that cam.
'01 Z06----204----211----525----525----116
'02 Z06----204----218----551----541----117.5
Hope this helps
Andy
just crunched some numbers incase no one else did..........that stock 99 cam has -35.5 degrees of overlap......thats alot for a turbo setup.both Z06 cams are ~25 degrees overlap.the cam PSJ posted would be much better having -4 degrees of overlap.plus the duration would give you more peak hp as well as more lift to let more air in.
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Verdad Gallardo damn, thats brutal
220/220/114 or 224/224/114 ?
I guess I would upgrade pushrods and retainers while Im at it too so I can rev it since those cams will want to rev. Im surprised the stock pushrods are loving life
220/220/114 or 224/224/114 ?
I guess I would upgrade pushrods and retainers while Im at it too so I can rev it since those cams will want to rev. Im surprised the stock pushrods are loving life
Last edited by Tiago; Dec 12, 2005 at 04:14 PM.
yeah that stock cam is killing you 
it took me months to decide on a cam which ended up being a 226/222 115+3 thats -6 degrees of over lap.quoting Jose on FI.com overlap should be anywhere from ~-8 to +2 degrees on a turbo setup is a safe bet.i could see you picking up 40hp with the right cam....and thats ~$8/hp............. seems worth it to me.
it took me months to decide on a cam which ended up being a 226/222 115+3 thats -6 degrees of over lap.quoting Jose on FI.com overlap should be anywhere from ~-8 to +2 degrees on a turbo setup is a safe bet.i could see you picking up 40hp with the right cam....and thats ~$8/hp............. seems worth it to me.
Originally Posted by ddnspider
yeah that stock cam is killing you
it took me months to decide on a cam which ended up being a 226/222 115+3 thats -6 degrees of over lap.quoting Jose on FI.com overlap should be anywhere from ~-8 to +2 degrees on a turbo setup is a safe bet.i could see you picking up 40hp with the right cam....and thats ~$8/hp............. seems worth it to me.
it took me months to decide on a cam which ended up being a 226/222 115+3 thats -6 degrees of over lap.quoting Jose on FI.com overlap should be anywhere from ~-8 to +2 degrees on a turbo setup is a safe bet.i could see you picking up 40hp with the right cam....and thats ~$8/hp............. seems worth it to me.
thats good info
http://www.rbracing-rsr.com/comprAdvHD.htm
i used this calculator. You need to know the intake closing point. I think stock 99 is around 31 deg abdc. I could be WAYYYYYYY wrong here all together but that was MY opinion on your results. Look at some of the big guys running 112lsa cams and such. Even Dave Inall of Incon infamy advocated Harlan switch to a 215-220 112lsa cam back in the day when he was on a stock motor to help make the same power he was on race gas, with 93 octane.
i used this calculator. You need to know the intake closing point. I think stock 99 is around 31 deg abdc. I could be WAYYYYYYY wrong here all together but that was MY opinion on your results. Look at some of the big guys running 112lsa cams and such. Even Dave Inall of Incon infamy advocated Harlan switch to a 215-220 112lsa cam back in the day when he was on a stock motor to help make the same power he was on race gas, with 93 octane.
...... I am by no means an expert I just think that the lsa is way to high if the 119 is correct for a stock cam I thought it was more like 117.5 but I could be wrong. If you notice speed inc is running some of their turbo cars on 113 lsa's probably for that very reason. I had never encountered this problem till tiago's car. I tuned mine but I had meth from the get go,cam and heads. Hes making probably like 700 dyno jet which is what most people go by. I believe that tiago could have ran about 13 or 14 # with pump gas and say a 114 due to the drop in dynamic CR which I am barely learning about. The main difference would be the lsa on a ls6 cam which actually cablebandit did run at one point.
Originally Posted by Pro Stock John
I'm wanting to learn from this point... I'm not going after you guys on this point by any means. But I see Slowhawk and other advocating small grinds, even Z06 cams. Wouldn't those cams be along the lines of a stock 99 cam?
I'd be very interested to see what you picked up just from a cam swap. I'd go for a 224/224//114 something like that... It would be a clear change from the cam you have now. A 215/215 would have more intake duration than what you run now but not much more on the exhaust.
I'd be very interested to see what you picked up just from a cam swap. I'd go for a 224/224//114 something like that... It would be a clear change from the cam you have now. A 215/215 would have more intake duration than what you run now but not much more on the exhaust.
in a LS1/LS6 manual i have it lists all the cam specs for Y,F(including ls6) bodys and trucks.thats what it said.I check the values white lightning posted for the Z06 cams and it was the same other than slight variances in the lift(.004 diff lol).So i believe the LSA is correct.that is very high which is why ive wondered about that LPE cam with an LSA of 121 
"my cam: 209/198 .500 .500 119.5"
I like to write that as 198/209 .500 .500 119.5" otherwise some folks might think it's a reverse split. In any event, why not try a Speed Inc 225/225/113 cam, they seem to work great.
I like to write that as 198/209 .500 .500 119.5" otherwise some folks might think it's a reverse split. In any event, why not try a Speed Inc 225/225/113 cam, they seem to work great.
TECH Resident
Joined: Jun 2004
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Originally Posted by ddnspider
yeah that stock cam is killing you
it took me months to decide on a cam which ended up being a 226/222 115+3 thats -6 degrees of over lap.quoting Jose on FI.com overlap should be anywhere from ~-8 to +2 degrees on a turbo setup is a safe bet.i could see you picking up 40hp with the right cam....and thats ~$8/hp............. seems worth it to me.
it took me months to decide on a cam which ended up being a 226/222 115+3 thats -6 degrees of over lap.quoting Jose on FI.com overlap should be anywhere from ~-8 to +2 degrees on a turbo setup is a safe bet.i could see you picking up 40hp with the right cam....and thats ~$8/hp............. seems worth it to me.
-2 degrees overlap at .006" lift...
206/212 on 112 LSA..
Cam card
http://www.compcams.com/Technical/Se...mber=54-408-11
Im actually leaning towards the thunder 224/224/114 cam. Im not going into this motor again anytime soon so I'll throw in a set of AFR 225's too while Im at it. Not doing this right now unless I have to, still don't know if I'll have to pull the heads.....
V8_DSM_V8again- the overlap is much better but the gains wont be as much as the cam that he's looking at,hes going to want more duration as well as more lift,especially if he gets the AFR's to take advantage of the extra flow.
Tiago-i think your on the right track...what do you have for a tranny and what are you planning on shifting to?
Tiago-i think your on the right track...what do you have for a tranny and what are you planning on shifting to?
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Joined: Jun 2004
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Originally Posted by ddnspider
V8_DSM_V8again- the overlap is much better but the gains wont be as much as the cam that he's looking at,hes going to want more duration as well as more lift,especially if he gets the AFR's to take advantage of the extra flow.
Tiago-i think your on the right track...what do you have for a tranny and what are you planning on shifting to?
Tiago-i think your on the right track...what do you have for a tranny and what are you planning on shifting to?
You dont need alot of intake duration with those heads and FI.. There is also the issue of when the valves open and close in relation to the pistons timing as opposed to just total duration.
Its a split with a little more duration on the exhaust side still a smaller cam. I think the exhaust side is just right too.. Not opening to early as to loose some of a turbo engines more degrees of power on the power stroke and hits a pretty good sweet spot on the exhaust valve close point too.
I'm looking for a 6000 rpm hp peak... Actually I concentrated on huge low and mid tq and ended up with a 6000 rpm hp peak...
Last edited by V8_DSM_V8again; Dec 13, 2005 at 11:21 AM.