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Discussion Starter #1
Haven't done this in awhile, figured I'd see what everyone thinks my new combo will pull for HP and ET's at the track. I have a good idea on what it'll make and run but it's fun to hear others guesses!

Ok, here is the new combo-
-Dart SHP block big bore 347.
-around 9.5:1
-AFR Renegade 220 heads
-Ported Edelbrock Vic Jr intake
-CSU 750 blow thru carb
-McQuillen custom grind solid roller cam.
-CPR long tubes, 2" primaries, 3.5" collectors.
-Paxton Novi 2000 blower
-C4 transmission w/ brake, 4000rpm converter.
-4.10 gears
-28x11.5" MT ET Street R bias ply DOT slicks
-Roughly 3200-3300lbs race weight.

-car went [email protected] in 2016 with 331, smaller heads, smaller hydraulic roller cam, smaller headers, dual plane intake, and a 150 shot in nitrous. Same transmission, roughly same weight, and on 275/60/15 MT drag radials.


What you guys think?!!!
 

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Be nice to know how much boost the Novi is making before I "guess". But I do think the carb is too small
 

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Be nice to know how much boost the Novi is making before I "guess". But I do think the carb is too small
CSU 750 blow thru carbs are built to support 1100+ hp, it's what was built for my combo.

And we expect to make 17-20+ psi, that's what we're shooting for
 

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In that case the car should run mid 8 in the 1/4 mile if the chassis is sorted. Lets say 8.54 @ 162 mph
 

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I hope the transmission is up to the task. They usually only last 8-10 passes before the band breaks at that power level.
 

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I hope the transmission is up to the task. They usually only last 8-10 passes before the band breaks at that power level.
We spent a lot of money on it having it built to hold some power but I plan next year to put a glide in it. I know I'm pushing that C4's limits.

Chassis and suspension is solid
 

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I make well north of 800hp with a C4 and have 80-100 passes on without an issue.
Add a couple hundred Hp and see what happens. A well built 347 @ 17-20 psi "should" make over 1K power. My 358 sbf at 18 psi makes over 900 rwhp. Add in the 3200-3300 lb race weight and it gets worse. At least I personally have never seen a C-4 at that power level last more than a handful of passes with out needing to come out of the car for repairs.
 

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I'd say 900 rwhp on race gas. Should run high 8s with traction. I'm currently building a 347 with twin 66mm turbos...I'm hoping for 950+ rwhp through a TH400, but I'm not worried about dyno numbers...I want a mid 8 second pass. Good luck with your project...sounds killer! I run a Novi 2000 on my fiancé's car with a 357w...it's wild, even at only 5 psi!
 

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I'd say 900 rwhp on race gas. Should run high 8s with traction. I'm currently building a 347 with twin 66mm turbos...I'm hoping for 950+ rwhp through a TH400, but I'm not worried about dyno numbers...I want a mid 8 second pass. Good luck with your project...sounds killer! I run a Novi 2000 on my fiancé's car with a 357w...it's wild, even at only 5 psi!
Thanks man! We just bought cog pulleys to try to squeeze every ounce of power out of it as possible. Our goal is to run 5.60's in the 1/8 and high 8's in the 1/4. If we weigh around 3300lbs race weight, if we can make around 900-1000fwhp, it should net us those ET's if everything else is working too
 
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