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VL Commodore
HIGH COMP who is the fastest?
Started by AFG-WPN · 10 Aug 2007 · 416 repliesPreserved from CalaisTurbo (partial recovery). Original authors and dates are shown; archived members are not current Holdcom accounts.
14-08-07, 08:04 GMT+10#83
So is it ok to use the N/A Cam? I assumed it wouldn't run too well once on boost but if you guys are talking about unopened engine then I won't bother replacing the cam in mine yet, I still have to get an electrical problem sorted before I can even start it yet.
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14-08-07, 09:52 GMT+10#84
mine runs fine with NA cam,
it's done a 12.9 and i havn't even held it flat the whole way down (to scared keep thinking it's goin to pop :P) but will do it this next friday
i suppose your not getting the best performance out of it, but it still runs well! mine rev's and pulls all the way to 6k rpm, doesn't nose over, I do have my other head there, with crow cam and double valve springs, but as this one is running find at the moment i have no reason to change, it spins the wheels so easily, any thing around the 80km/h mark spin all the way to 120, so i'm happy
i just purchased a 6 port nos kit 125hp wet nos system, not sure how it's going to last :P
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14-08-07, 13:10 GMT+10#85
so long as she doesnt ping lars.. it should be good for some decent power.
Thats good news about the n.a cam, never considered it actually.. less stuffing around tho, and lars sounds like ur making over 200rwkw with it.
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14-08-07, 13:22 GMT+10#86
Thats great to hear, looks like I will be back on the road sooner than I think, no need to save up for a cam upgrade now. what are you driving these days Morgz? would be good to catch up again.
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14-08-07, 13:38 GMT+10#87
Quote:
Originally Posted by Morgz
so long as she doesnt ping lars.. it should be good for some decent power.
Thats good news about the n.a cam, never considered it actually.. less stuffing around tho, and lars sounds like ur making over 200rwkw with it.
it made 150rwkw on 10psi,
but that was with a small spring, that let the boost build with the rev's so at the limit it had 10psi
it's now running 12psi constant, and is 10 time better!
only pings if i try to roll on in third at 40 -50 km/h which is fare i suppose, plus the weather we have up here
I have been flogging the crap out of in now for 2 months, that means it's on the limitor 1st and 2nd every time i drive it a u can imagine!
like i said see how i go with it next friday, trying to get some street slicks as i managed the 12.9 with some clapped out 15 inch street tyres
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14-08-07, 14:11 GMT+10#89
yeap, will keep people posted with how far i take it and when it goes bang,
i wont be using the nos on this engine, would be just stupid, but will get it all ready! manifold tapped etc
Quote:
Originally Posted by hsvtrev
Thats great to hear, looks like I will be back on the road sooner than I think, no need to save up for a cam upgrade now. what are you driving these days Morgz? would be good to catch up again.
well that was my thinking, my car would be of the road for ever waiting to build another motor, we looked at the engine in the shed, thought what the hell, got a gasket kit, stripped down the other engine and changed everything over, it started 2nd kick, and like i said considering it hasn't run for over 4 years, and we had to use a 1.5 metre bracker bar to unsieze the engine, it just goes to show how good a motor they are!
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14-08-07, 14:46 GMT+10#90
Quote:
Originally Posted by Ratta
Hey qiksix how do you know how much meth to put in if ya just got extra squirters ? or is it all seat of the pants and wind it up and see what happens would love to see this thing sounds like serious fun
Seat of the pants mate. The only control i have of the methanol is pressure (controled by a rising rate reg), when to open the injectors (by a pressure switch) and the size of the injectors.
I've been meaning to put a fuel only ecu on the methanol injectors but i haven't got around to it.
It's a really simple system and it cost me **** all and best of all it works really well. The motor has been in the car for 12 months making that power and it hasnt missed a beat! It is still smooth to drive and it comes on really hard when the methanol kicks in!
Some original photos have not been recovered yet.
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14-08-07, 15:06 GMT+10#91
i run 8.5:1 comp, cp pistons, scat rods... genuine nissan gasket and oring,
have run 40+ psi through it on C16... went 9.02 @ 155mph with mega wheelspin on a cold, **** heatcote track...
stripped engine down afta 30 + passes, a trashing at powerfest and 1000kms street driving, bearings and rings etc were like brand new...
i can thank JPC for a killer tune....
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14-08-07, 15:14 GMT+10#92
good to hear boys, only giving me more confidence to up the boost every day!!!
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14-08-07, 15:42 GMT+10#93
Quote:
Originally Posted by tubbed1
i run 8.5:1 comp, cp pistons, scat rods... genuine nissan gasket and oring,
have run 40+ psi through it on C16... went 9.02 @ 155mph with mega wheelspin on a cold, **** heatcote track...
stripped engine down afta 30 + passes, a trashing at powerfest and 1000kms street driving, bearings and rings etc were like brand new...
i can thank JPC for a killer tune....
the video's are some of the best i have seen u no how to DRIVE your car!!! and huge props to jpc this car copped a flogging and by the sounds of it could have copped plenty more
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14-08-07, 17:03 GMT+10#95
243 rwkw at 14 psi ( safe tune ) 98 octane
unopened stocko 30e 9.0-1cr motor.
na cam - na head, everything inside the motor stock na. not freshend up.
bolt on t3/4 turbo, microtech, gtr injectors.
skinny tyres - 2.1 60's 12.8 quarter mile at 114 mph.
3.7 diff having to over rev to get over the line in 4th gear.
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14-08-07, 17:14 GMT+10#96
Quote:
Originally Posted by ANK
the video's are some of the best i have seen u no how to DRIVE your car!!! and huge props to jpc this car copped a flogging and by the sounds of it could have copped plenty more
cheers mate, was quite a handful at heathcote, almost put it in the wall once when it half track at 196kph and snapped sideways... in the vids u can c it twitching and skating ova the finish line... last time i eva race on a unprepped track... car makes so much torque it aint funny....
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14-08-07, 17:17 GMT+10#97
Quote:
Originally Posted by tubbed1
cheers mate, was quite a handful at heathcote, almost put it in the wall once when it half track at 196kph and snapped sideways... in the vids u can c it twitching and skating ova the finish line... last time i eva race on a unprepped track... car makes so much torque it aint funny....
she really doesnt have any extream head work does it? or did i read wrong somewhere top car mate and the burn out comp i would have pis5ed me self if the chute poped on ya haha
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14-08-07, 17:18 GMT+10#98
Quote:
Originally Posted by GTS005
243 rwkw at 14 psi ( safe tune ) 98 octane
unopened stocko 30e 9.0-1cr motor.
na cam - na head, everything inside the motor stock na. not freshend up.
bolt on t3/4 turbo, microtech, gtr injectors.
skinny tyres - 2.1 60's 12.8 quarter mile at 114 mph.
3.7 diff having to over rev to get over the line in 4th gear.
thats what i wanna see, unopened and making power
cant wait next week to take my car to the track.
tubbed1, thats also an awesome effort dude
Some original photos have not been recovered yet.
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14-08-07, 17:48 GMT+10#99
Quote:
Originally Posted by ANK
she really doesnt have any extream head work does it? or did i read wrong somewhere top car mate and the burn out comp i would have pis5ed me self if the chute poped on ya haha
head has mild porting, standard valves, crow tx2 hydraulic cam... goin solid tho now and 1/2 inch studs, just sold my hsv, got an account 2 clear up at jpc then wil develope the car a little more...
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