***GM Stock Shortblock Heads/Cam - 10's NA & 9's on N2o
02-11-2009, 09:00 AM
#61
The rpm must be one of the reasons the the victor and carb are on there? I was at the track this weekend and found a 95 camaro with an iron headed 355 with a victor/carb setup running 10.40's so i went talk to him. It's an old S/S car with a high rpm 355, 5,500 converter, 4.88 gear, 1.3X 60's.
02-11-2009, 10:30 AM
#62
The rpm must be one of the reasons the the victor and carb are on there? I was at the track this weekend and found a 95 camaro with an iron headed 355 with a victor/carb setup running 10.40's so i went talk to him. It's an old S/S car with a high rpm 355, 5,500 converter, 4.88 gear, 1.3X 60's.
02-17-2009, 08:35 AM
#63
I agree..from what I've seen the intake is marginal on a NA setup, it will give you some but the hp gain isn't the main advantage I feel. I too changed for the same reasons you did..and to be able to get away from the opti setup. My main reason was the opti or I would probably still be on a ported stocker.
it's doing something...... i'd bet that a BOX stock LT1 manifold untouched would kill a bit of power on that thing..... maybe not much but that car is certainly one of those deals where many have tried but nobody has succeeded to do what that car is doing wtih that little....
The rpm must be one of the reasons the the victor and carb are on there? I was at the track this weekend and found a 95 camaro with an iron headed 355 with a victor/carb setup running 10.40's so i went talk to him. It's an old S/S car with a high rpm 355, 5,500 converter, 4.88 gear, 1.3X 60's.
Average guys with average parts run average numbers. Exceptional guys with average parts run above average numbers. Exceptional guys with exceptional parts...
Hope that answers some questions, guys!
02-17-2009, 11:48 AM
#64
On manifolds, I would like to do an a/b comparison on the dyno sometime. I believe you guys are thinking of super victors etc. & this is the lower capacity Vic. Jr. Regardless of what it flows, I would be willing to bet that the gains up top are minimal. The stock manifold is quite good in that area for most applications. Locals have gone from the stock mani to a single plane with the same runner dimensions as the Vic. Jr. & gained nothing NA at the track. The probability is extremely low that it would slow the car down by a significant amount if he were to have kept the stock manifold. The swap was done for tuning & consistency relative to weather, not power.
02-24-2009, 08:45 AM
#68
Even though the gains NA on a small cube LT1 are minimal, a Vic JR is still way ahead of the stock intake when used with nitrous. It does not have the distribution issues of the factory LT1 intake...or the HSR as well for that matter. I have never seen a direct comparison but I still think the unported vic jr+carb will make quite a bit more then an unported factory LT1 intake+ factory EFI. I don't see how it couldn't...
I'll say it again though - very impressive combo! Must have taken a long time to dial it in that nicely.
My current build in progress is much more aggressive and has a bit more weight(~200lbs) but a lot more cam, more compression, better heads, and the same gearing/convertor and I only hope for <10.99999s on motor, let alone 10.5s! I race at a DA of sea level or below too
. Maybe I will get surprised and will run better then I think 
.
PS: Spinning to 7K on the stock shortblock is insane!!!
I'll say it again though - very impressive combo! Must have taken a long time to dial it in that nicely.
My current build in progress is much more aggressive and has a bit more weight(~200lbs) but a lot more cam, more compression, better heads, and the same gearing/convertor and I only hope for <10.99999s on motor, let alone 10.5s! I race at a DA of sea level or below too
. Maybe I will get surprised and will run better then I think .PS: Spinning to 7K on the stock shortblock is insane!!!
03-09-2009, 09:00 PM
#70
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Even though the gains NA on a small cube LT1 are minimal, a Vic JR is still way ahead of the stock intake when used with nitrous. It does not have the distribution issues of the factory LT1 intake...or the HSR as well for that matter. I have never seen a direct comparison but I still think the unported vic jr+carb will make quite a bit more then an unported factory LT1 intake+ factory EFI. I don't see how it couldn't...
I'll say it again though - very impressive combo! Must have taken a long time to dial it in that nicely.
My current build in progress is much more aggressive and has a bit more weight(~200lbs) but a lot more cam, more compression, better heads, and the same gearing/convertor and I only hope for <10.99999s on motor, let alone 10.5s! I race at a DA of sea level or below too. Maybe I will get surprised and will run better then I think .
PS: Spinning to 7K on the stock shortblock is insane!!!
I'll say it again though - very impressive combo! Must have taken a long time to dial it in that nicely.
My current build in progress is much more aggressive and has a bit more weight(~200lbs) but a lot more cam, more compression, better heads, and the same gearing/convertor and I only hope for <10.99999s on motor, let alone 10.5s! I race at a DA of sea level or below too
. Maybe I will get surprised and will run better then I think .PS: Spinning to 7K on the stock shortblock is insane!!!
03-10-2009, 02:09 AM
#71
100, 135, 150, 400 shot I don't care it will make more hp and especially tq on that single plane just because of the more even distribution. Hell my plugs looked different from front to back when I wasn't spraying... that's great distribution 
Granted the NA numbers on that car are more impressive to me than the N20 numbers so who cares.
Granted the NA numbers on that car are more impressive to me than the N20 numbers so who cares.
03-10-2009, 05:49 AM
#72
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Have you ever done a back to back swap to prove your claims or are you just throwing that out there? Funny all my plugs look the same all the time NA 75 100 125 150 175 for a couple of years. So i ask again are you speaking from experience by using both intakes on the same motor or not?
Last edited by Jditlfm; 03-10-2009 at 06:03 AM.
05-03-2009, 07:10 AM
#76
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putting drag brakes on the front of it this week, also.
