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-   -   What do you think it will run? (https://67-72chevytrucks.com/vboard/showthread.php?t=463985)

Blue Rat 05-11-2011 08:28 PM

What do you think it will run?
 
1971 chevrolet SWB (3800 lbs) 325-50-15's
4.10's with 3500 to 4000 converter
350 TH built
BBC 433 (Balanced)
049's 2.19/1.88's Gasket matched with intake (Hurricane 3000-7500)
Solid roller 264/272 @.050 .680/.683 lift Matching componets (2800-7000)
10.6 CR
2 " tubes with 3.5 collectors
MSD system componets.

I know alot rides on the suspension. That will be worked too. I am just looking for you thoughts.

kpeztruck 05-11-2011 09:31 PM

Re: What do you think it will run?
 
If your engine has good forged components, it will love the bottle. We have found that we run faster with lower compression than is traditional for a nitrous engine. On engine only, I would guess low 12's. Paul Baxter

99-LS1-SS 05-12-2011 10:58 AM

Re: What do you think it will run?
 
I'm going to be a hair more optimistic than kpeztruck and say you might hit mid 11's. It really depends on traction, air quality and how well your setup works together. Have you had it dyno'd?

69trk 05-12-2011 12:06 PM

Re: What do you think it will run?
 
doesn't sound to much different than mine.

swb85 05-12-2011 12:29 PM

Re: What do you think it will run?
 
Reverse split cam huh? Any particular reason?

I'd say if you get some decent air, it should mph in the 114-116 range. I'd say in a big truck that's good for high elevens if you can sixty foot the thing. Bottom 12s for sure though.

Blue Rat 05-12-2011 07:17 PM

Re: What do you think it will run?
 
[QUOTE=swb85;4676354]Reverse split cam huh? Any particular reason?/QUOTE]


Let me get the cam spec card out an get the info from the card.

Blue Rat 05-12-2011 07:42 PM

Re: What do you think it will run?
 
It is not together right now. But, do have all the major parts. The heads will be done in the next couple weeks. The pockets in the heads are being worked a little. The block is done. All I have to do is get it balanced an start putting it together. Forged pistons, Callies rods an GM forged steel crank. Engine should be together in about month an half. Here is the cam specs. Thanks for the comments. I had a chevelle with a little less engine than what this is an of course it was lighter it ran 11.60's. I am trying to at least match that time with this combo. I will keep making changes till I get it where I think it is doing its best it is going to do.

264 @ .050 .680
272 @ .050 .683 EXH.
4/7 swap.

I am considering Nitrous but I do not know anything about tuning it. Any directions from someone that runs it would be appreciated. You can pm me or lead me in a good direction.

swb85 05-12-2011 10:23 PM

Re: What do you think it will run?
 
Ah, much more logical cam choice. That motor would love some spray, but decide on it soon because you'll need to gap your rings accordingly. If you want to learn nitrous, learn to read spark plugs. Once you're comfy reading them, tuning nitrous is easy. If you decide to go that route I'd be happy to get ya on the right path.....my camaro is bottle fed.


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