Summit pro 1 or pro 2 for this build
Summit pro 1 or pro 2 for this build Been going back and forth between the stage 1 and stage 2 summit cams for my NA LS1 build
would like to stay with the summit cams as I’m trying to build this engine cheap because it probably won’t be in the car for the long term, the car (1988 Monte Carlo ss) already has an ‘02 LS1 with the LS6 intake in it but the motor is bone stock as I type this, I do already have the 3200 circle D 4l60 converter and PAC 1519 valvesprings though, this car is daily driven in the summer and raced on most weekends at the local 1/8 mile
but here is the setup I plan on going with:
’02 LS1 shortblock
WS6store .045 MLS headgasket
factory port 243 head
LS6 intake
either ported factory TB or WARR 92mm tb but not sure if the warr fits on stock intake
schoenfeld 1-3/4 primary 3” collector longtube headers
the PAC 1519 springs I already have
and the setup on the car is:
3450 race weight monte carlo
4l60 trans with 3200 stall
7.5 10 bolt with 3.73 gear
275/50/15 m/t drag radial
not opposed to the stage 3 cam either if that would make the most power in this setup but I think the rest of the motor would be too mild for it but I’m not an expert
I do plan on taking some more weight out of the car too just haven’t gotten to it yet
would like to stay with the summit cams as I’m trying to build this engine cheap because it probably won’t be in the car for the long term, the car (1988 Monte Carlo ss) already has an ‘02 LS1 with the LS6 intake in it but the motor is bone stock as I type this, I do already have the 3200 circle D 4l60 converter and PAC 1519 valvesprings though, this car is daily driven in the summer and raced on most weekends at the local 1/8 mile
but here is the setup I plan on going with:
’02 LS1 shortblock
WS6store .045 MLS headgasket
factory port 243 head
LS6 intake
either ported factory TB or WARR 92mm tb but not sure if the warr fits on stock intake
schoenfeld 1-3/4 primary 3” collector longtube headers
the PAC 1519 springs I already have
and the setup on the car is:
3450 race weight monte carlo
4l60 trans with 3200 stall
7.5 10 bolt with 3.73 gear
275/50/15 m/t drag radial
not opposed to the stage 3 cam either if that would make the most power in this setup but I think the rest of the motor would be too mild for it but I’m not an expert
I do plan on taking some more weight out of the car too just haven’t gotten to it yet
stage 2.... or 3 if your springs are good enough
Summit racing cams
Stage 1 LS Ghost Cam. 222/233 115+3, .600/.575 Lift (probably wont chop much if your into that kinda thing)
Stage 2 LS Cam. 226/238 113+3, .600/.600 Lift
Stage 3 LS Cam 231/242 113+3, .600/.600 Lift
Summit racing cams
Stage 1 LS Ghost Cam. 222/233 115+3, .600/.575 Lift (probably wont chop much if your into that kinda thing)
Stage 2 LS Cam. 226/238 113+3, .600/.600 Lift
Stage 3 LS Cam 231/242 113+3, .600/.600 Lift
Last edited by Ls7colorado; Jun 14, 2019 at 08:42 AM.
TECH Veteran
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From: Mississippi
I would go stage 2 with the stall you currently have.
Honestly i think with a 4000 stall and the stage 3 would be sweet. I bet the stage 3 would put your G body in the 7.4X range in the 1/8 mile.
Honestly i think with a 4000 stall and the stage 3 would be sweet. I bet the stage 3 would put your G body in the 7.4X range in the 1/8 mile.
maybr I could find someone who would be willing to trade a 4000 for a 3200
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What kind of converter do you have exactly? If it's just a reworked heavier 11" or 12" factory style 3200 I would lean towards the stage 1. If it's a nice light weight unit 10" or something smaller billet ect, I would think the stage 2 would be great. I'd do the stage 3 with more weight reduction and a really nice 4k+ converter.
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From: Mississippi
Thats what I originally wanted but couldn’t find one and the 3200 was too cheap to pass up, but that’s about what I predicted as well, it went 8.0 at 87.5mph with a lousy 1.91 60’ because of the stock converter the other weekend
maybr I could find someone who would be willing to trade a 4000 for a 3200
maybr I could find someone who would be willing to trade a 4000 for a 3200
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Brett Foote TECH Veteran
Joined: Sep 2014
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From: Mississippi
Go 4000 and stage 2 is my vote.
Peak tq will move higher as the cam gets bigger. That stage 2 will hit the converter nice. Stage 3 won't hurt but there are a lot of cases where too big of a cam will make you slower than a slightly undersized cam. The stage 1 is slightly undersized, the stage 2 is not. In my opinion the stage 3 is over sized for your setup.
Stage 3 is a little over kill for a 5.7, especially with stock heads and intake. The 92 mm throttle body probably make less power than the ported stocker, since there will be a huge ridge behind it that the air will not like trying to flow past.
Just send your converter to circle D for a restall. Then you'll have a freshly cleaned converter than you don't have to worry if there's chunks in it or a burned up lock up clutch. It'll all be fresh and new and won't cost much. Cost the same as shipping two converters back and forth trying to trade and good luck finding someone that would trade to go slower
Peak tq will move higher as the cam gets bigger. That stage 2 will hit the converter nice. Stage 3 won't hurt but there are a lot of cases where too big of a cam will make you slower than a slightly undersized cam. The stage 1 is slightly undersized, the stage 2 is not. In my opinion the stage 3 is over sized for your setup.
Stage 3 is a little over kill for a 5.7, especially with stock heads and intake. The 92 mm throttle body probably make less power than the ported stocker, since there will be a huge ridge behind it that the air will not like trying to flow past.
Just send your converter to circle D for a restall. Then you'll have a freshly cleaned converter than you don't have to worry if there's chunks in it or a burned up lock up clutch. It'll all be fresh and new and won't cost much. Cost the same as shipping two converters back and forth trying to trade and good luck finding someone that would trade to go slower
Go 4000 and stage 2 is my vote.
Peak tq will move higher as the cam gets bigger. That stage 2 will hit the converter nice. Stage 3 won't hurt but there are a lot of cases where too big of a cam will make you slower than a slightly undersized cam. The stage 1 is slightly undersized, the stage 2 is not. In my opinion the stage 3 is over sized for your setup.
Stage 3 is a little over kill for a 5.7, especially with stock heads and intake. The 92 mm throttle body probably make less power than the ported stocker, since there will be a huge ridge behind it that the air will not like trying to flow past.
Just send your converter to circle D for a restall. Then you'll have a freshly cleaned converter than you don't have to worry if there's chunks in it or a burned up lock up clutch. It'll all be fresh and new and won't cost much. Cost the same as shipping two converters back and forth trying to trade and good luck finding someone that would trade to go slower
Peak tq will move higher as the cam gets bigger. That stage 2 will hit the converter nice. Stage 3 won't hurt but there are a lot of cases where too big of a cam will make you slower than a slightly undersized cam. The stage 1 is slightly undersized, the stage 2 is not. In my opinion the stage 3 is over sized for your setup.
Stage 3 is a little over kill for a 5.7, especially with stock heads and intake. The 92 mm throttle body probably make less power than the ported stocker, since there will be a huge ridge behind it that the air will not like trying to flow past.
Just send your converter to circle D for a restall. Then you'll have a freshly cleaned converter than you don't have to worry if there's chunks in it or a burned up lock up clutch. It'll all be fresh and new and won't cost much. Cost the same as shipping two converters back and forth trying to trade and good luck finding someone that would trade to go slower
No go on the converter restall, 3200 is as high as they go on the 278mm, still thinking I’ll go with the stage 2 cam and hoping running a short tire and having the deep 4l60 first gear makes it work
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From: St. Louis
I still think that stage 2 has too much duration for a heavier 278mm converter. I'm sure it will drive just fine with a good tunup but it won't be ideal or as quick as it would be with a smaller cam. It'll sound cool though!
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From: Mississippi
Car Craft magazine just went a 7.13 @ 97.97 mph with a 10 inch 3800 stall/turbo 400 tranmission in a heavy Chevelle. The cam was a BTR 227/234 duration. Im go say you'll be ok on a stage 2 with your current stall you have now.
I went with the Summit stage 2 cam, very happy with it. It pulls strong, drives nice and was easy to tune for a novice. Went 11.63 at 115 (2900+DA) last week but surely has more in it. The engine just has a stock ported TB, LS6 intake, stock 243 heads, the same WS6 head gasket as you pointed out, Yank converter, 3.23 gear.