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Old 11-04-2009, 10:46 AM   #61
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Originally Posted by T04rPowered View Post
Do you only run partial throttle up to 6000rpm? NO! So, then the primary lobes are in full discussion. Most dyno comparasion's Ive seen, the pro 1's out performed the tuner 2's up to 5600 to 6000, which is the primary lobes, not vtec
i dont think my last setup saw anything less than 7500, so ... no.
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Old 11-04-2009, 10:47 AM   #62
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You will be safe with pro 1 or Tuner 2's. Although Skunk doesn't suggest running an oversize valve, it can be done. IMO The cams will need to be degreed and V2V and V2P should be measured anyway. In my case I have run larger lift and duration cams than pro1's, 2's even 3's with 1mm oversize valves but I know a few tricks to gaining that "extra space" needed to do so.
The real question is... do you have enough static compression to run these cams?
i think he said it was going to be 11.5 to 1, which i figured would be okay for pro 1's
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Old 11-04-2009, 10:52 AM   #63
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i think he said it was going to be 11.5 to 1, which i figured would be okay for pro 1's
IMO, at 11.5 to 1 the pro1's would be just a bit too big. I know they work really well over 12.5 to 1. I know it doesn't seem like that much of a jump in compression to warrant the cam change but the duration overlaps really bleed off cylinder pressure fast on the pro1's. I would stick as much compression in this thing as possible then run the pro1's
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Old 11-04-2009, 11:27 AM   #64
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Originally Posted by 2point6 View Post
IMO, at 11.5 to 1 the pro1's would be just a bit too big. I know they work really well over 12.5 to 1. I know it doesn't seem like that much of a jump in compression to warrant the cam change but the duration overlaps really bleed off cylinder pressure fast on the pro1's. I would stick as much compression in this thing as possible then run the pro1's
i trust your judgement. would going with the "high compression valves" help?
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Last edited by honduh_head; 11-04-2009 at 11:28 AM.. Reason: i'm an idiot
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Old 11-04-2009, 11:32 AM   #65
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i trust your judgement. would going with the "high compression valves" help?
Anything to add compression will help make power. If 12/1 compression were all that was availible to me, I would try and build as much cylinder pressure as possible and that would use the Tuner 2's because of the lesser amount of overlap.
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Old 11-05-2009, 07:53 AM   #66
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i dont think my last setup saw anything less than 7500, so ... no.
This isnt just about your setup... I thought we were comparing cams.
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Old 11-05-2009, 09:46 AM   #67
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Anything to add compression will help make power. If 12/1 compression were all that was availible to me, I would try and build as much cylinder pressure as possible and that would use the Tuner 2's because of the lesser amount of overlap.
not trying to doubt your knowledge or anything, but would you happen to have dyno comparisons to back this up?
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Old 11-05-2009, 09:59 AM   #68
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nevermind...straight off skunks website. now this may be a little biased, but looks like the pro1's make way better midrange.



granted this is higher compression than what this guy will have, but its at least a decent comparison
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Old 11-05-2009, 10:01 AM   #69
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not trying to doubt your knowledge or anything, but would you happen to have dyno comparisons to back this up?
I have an engine program that I have built for years. Each of the bottom ends (in this case) were LSVTEC .030" overbore 11.7/1 compression set-ups. I called these "Clone" engines. All of these engines have been nearly identicle in build up so I feel this is a fair comparison.

Typically they averaged in 180-190 whp range with Skunk stage 2 cams. The last two I built, I switched to a set of Pro 1's and the HP on these engines dropped to the 170s. I replaced a set of the pro1's with a set of stage 2's and redynoed the car. Power was back up in the 180 range.

The second engine just came off of Joe's dyno making only 165. Joe did not make any cam adjustments at all, so I feel power would pick up a little bit if he had done so. I have yet to exchange these cams and do a re-tune.

I don't have any back to back testing and there are other variables as well that could contribute to the differences in power as well, but IMO the cams are too big for this low compression ratio.


EDIT: Notice that engine dyno you posted above is a 1.8ltr with CTR pistons. This will yeild almost 13/1 comression, so it is not a fair comparison. All it does show is that Pro1 like compression.
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Old 11-05-2009, 12:31 PM   #70
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Originally Posted by 2point6 View Post
I have an engine program that I have built for years. Each of the bottom ends (in this case) were LSVTEC .030" overbore 11.7/1 compression set-ups. I called these "Clone" engines. All of these engines have been nearly identicle in build up so I feel this is a fair comparison.

Typically they averaged in 180-190 whp range with Skunk stage 2 cams. The last two I built, I switched to a set of Pro 1's and the HP on these engines dropped to the 170s. I replaced a set of the pro1's with a set of stage 2's and redynoed the car. Power was back up in the 180 range.

The second engine just came off of Joe's dyno making only 165. Joe did not make any cam adjustments at all, so I feel power would pick up a little bit if he had done so. I have yet to exchange these cams and do a re-tune.

I don't have any back to back testing and there are other variables as well that could contribute to the differences in power as well, but IMO the cams are too big for this low compression ratio.


EDIT: Notice that engine dyno you posted above is a 1.8ltr with CTR pistons. This will yeild almost 13/1 comression, so it is not a fair comparison. All it does show is that Pro1 like compression.
ya i saw that, thats why i said its more compression than what this guy will have. i basically was just looking for a comparison...shitty that it was on a high comp motor :-/

thanks for your explanation, my views have changed
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Old 11-06-2009, 04:53 PM   #71
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Quote:
Originally Posted by 2point6 View Post
I have an engine program that I have built for years. Each of the bottom ends (in this case) were LSVTEC .030" overbore 11.7/1 compression set-ups. I called these "Clone" engines. All of these engines have been nearly identicle in build up so I feel this is a fair comparison.

Typically they averaged in 180-190 whp range with Skunk stage 2 cams. The last two I built, I switched to a set of Pro 1's and the HP on these engines dropped to the 170s. I replaced a set of the pro1's with a set of stage 2's and redynoed the car. Power was back up in the 180 range.

The second engine just came off of Joe's dyno making only 165. Joe did not make any cam adjustments at all, so I feel power would pick up a little bit if he had done so. I have yet to exchange these cams and do a re-tune.

I don't have any back to back testing and there are other variables as well that could contribute to the differences in power as well, but IMO the cams are too big for this low compression ratio.



EDIT: Notice that engine dyno you posted above is a 1.8ltr with CTR pistons. This will yeild almost 13/1 comression, so it is not a fair comparison. All it does show is that Pro1 like compression.
Well I guess I know which cams to look at. I got my parts back from AZ crank yesterday so you'll probably be hearing from me soon.
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Old 12-25-2009, 07:15 PM   #72
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wat stage 3 cams wud u recomend for me if i were to run ctr or itr pistons and a built head (supertech valvtrain)
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Old 12-26-2009, 09:56 AM   #73
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wat stage 3 cams wud u recomend for me if i were to run ctr or itr pistons and a built head (supertech valvtrain)
none of them.
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Old 12-26-2009, 04:34 PM   #74
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what bore size ced? oem 81?
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Old 12-29-2009, 07:57 PM   #75
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82mm wat about itr pistons
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Old 12-29-2009, 08:54 PM   #76
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i would say that no "stage 3" cam should ever be used on a stock displacement short block
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Old 12-30-2009, 09:37 PM   #77
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i would say that no "stage 3" cam should ever be used on a stock displacement short block
yeah i hear the lobes are too big for the cam bore in the block, you gotta get your block align bored down the cam bore. I know a guy
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Old 12-31-2009, 09:48 AM   #78
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lol wtf ^
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Old 01-03-2010, 10:48 PM   #79
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yeah i hear the lobes are too big for the cam bore in the block, you gotta get your block align bored down the cam bore. I know a guy
sarcasm?
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Old 01-03-2010, 10:57 PM   #80
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I would invest in a cam other then skunk2...here a k cam and i've seen the same on a b series



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Old 01-04-2010, 12:09 AM   #81
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In the first picture I was like "I don't really see a problem, but they sure used a lot of assembly lube!"

Then I saw the second picture, looked back up at the first one, and was like "DAAYUUUUUUM!!!"

That's just ridiculous to me. How can that happen the way it did with roller rockers? Doesn't the rocker contact area actually make contact with the entire lobe?
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Old 01-04-2010, 12:29 AM   #82
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Scary huh!!! i guess theres been a problem with the skunk cams there makin i guess.... i duno. only skunk part i rock is a shift knob...
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Old 01-04-2010, 11:03 AM   #83
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I have a 5spd shift knob too!
Codey is borrowing it though.
The car i'm hopefully getting has their pro series front camber kit.
Hopefully that will be ok.
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Old 01-04-2010, 01:30 PM   #84
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yeeesh thats crazy kyle
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Old 01-04-2010, 01:37 PM   #85
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lets all be cool and use first names on here brad
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Old 01-04-2010, 01:57 PM   #86
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dam them M25e camz are the shizz
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Old 01-04-2010, 01:59 PM   #87
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yeeesh thats crazy kyle
Your name isn't Billy Bob??? I was wrong all this time...
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Old 01-04-2010, 02:37 PM   #88
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Your name isn't Billy Bob??? I was wrong all this time...
lmao i'm not that redneck
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Old 01-04-2010, 02:37 PM   #89
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dam them M25e camz are the shizz
yessir they are.... i can vouch that they make stupid power.
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Old 01-04-2010, 04:06 PM   #90
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Your name isn't Billy Bob??? I was wrong all this time...
lol nope its Bobby Joe Cletus the 3rd and here's my myspace pic....hahahaha

heres my in the flesh

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