CamZ?
#11
In some cases I've seen the need for OR pushrods Shawn. A local GTP buddy of mine tried 1.9 rockers with LS6 springs and didn't bother with the OR pushrods. He was getting wicked valve float past roughly 5700rpm. Depends on the specific combination of mods I'm sure.
#12
Originally Posted by Allmachtige
In some cases I've seen the need for OR pushrods Shawn. A local GTP buddy of mine tried 1.9 rockers with LS6 springs and didn't bother with the OR pushrods. He was getting wicked valve float past roughly 5700rpm. Depends on the specific combination of mods I'm sure.
Shawn
#13
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From: Westerville, Ohio 2000 Black SSEi
Originally Posted by dbtk2
OR pushrods don't make that much difference.
A higher stall converter is recommended with any aftermarket cam especially in an N/A application. Most aftermarket cams make their power up top and the power band shifts upwards. This causes a loss on the bottom end that is easly accounted for with a supercharged car however in an N/A motor not so much. By increasing the stall speed of the converter the motor can instantly rev up into the powerband of the cam. The GT1 cam may work better than most because it does not shift the rpm band up as high as most of the other more aggressive cams however it wont make as much power up top because of this.
#14
[quote="Rogue"]
This might be true but theres only a 14hp difference between the highest GT1 powered dyno and the overall highest n/a dyno which is the intense stage 3 setup.
On a side note i'm kinda dissapointed that stage 3 setup never hit the track.
Originally Posted by dbtk2
The GT1 cam may work better than most because it does not shift the rpm band up as high as most of the other more aggressive cams however it wont make as much power up top because of this.
On a side note i'm kinda dissapointed that stage 3 setup never hit the track.
#15
14whp might not sound like much, but thats actually a pretty considerable gain for a N/A engine with that displacement.
I realize this, I know that OR pushrods do help keep the lifters pumped up reducing valve float, I was just saying that for most cam setups they aren't necessary. People keep saying that you NEED to replace pushrods with a cam swap, and while its a good idea, in most mild setups its not necessary at all. Believe me, if I didn't feel they made a difference they wouldn't be in the GTP right now, they are the only remaining INTENSE part in the GTP. Due to how Scott treated my dad a few years ago my dad would jump at just about any chance to pull an INTENSE part out of his car if it isn't helping him make power (which is why they are the only ones left), so if they didn't work, he definately wouldn't be using them. They are what allow him to run 90lb springs with an XP cam when everyone else is running 105lb springs or more.
Shawn
Roller Rockers don't require as much lubrication as the stock rockers do. Because of this, not as much oil is needed in the valvetrain area and oil-restricted rods are recommended because they keep more oil down in the motor where its most critical. They won't do much for horsepower but they will add a protection factor to the motor as well as help keep the lifters pumped up.
Shawn
#16
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From: Westerville, Ohio 2000 Black SSEi
Originally Posted by 95naSTA
This might be true but theres only a 14hp difference between the highest GT1 powered dyno and the overall highest n/a dyno which is the intense stage 3 setup.
On a side note i'm kinda dissapointed that stage 3 setup never hit the track.
On a side note i'm kinda dissapointed that stage 3 setup never hit the track.
The stage 3 setup did hit the track at IDD VI however there were some issues with the setup and the car only went 13.6.
#17
Originally Posted by Rogue
Originally Posted by 95naSTA
This might be true but theres only a 14hp difference between the highest GT1 powered dyno and the overall highest n/a dyno which is the intense stage 3 setup.
On a side note i'm kinda dissapointed that stage 3 setup never hit the track.
On a side note i'm kinda dissapointed that stage 3 setup never hit the track.
But on the 14 more whp isn't easy note. I think wes had a 4k stall compared to the gt1 cam dyno with a 3800 stall so the higher 4k stall might have sucked up a couple whp.
Originally Posted by Rogue
The stage 3 setup did hit the track at IDD VI however there were some issues with the setup and the car only went 13.6.
#18
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From: Westerville, Ohio 2000 Black SSEi
Originally Posted by 95naSTA
Any info on why that setup wasn't continued? I see everything up for sale in the Intense garage. And I think i've read that Wes is goin back to his stage 2 setup.
Wes'* car which dyno'd 248whp used our standard stage 3 N/A heads and stage 3 N/A cam. He does have a higher stall converter though. He was battling some suspension issues for a while (axles, tie rods, etc..) which gave the car a bad shake and may have reduced his E.T. Towards the end of the day he also mentioned a noise coming from the back of the engine however when we pulled it apart we found nothing wrong.