Recommendations on new setup! Supercharged
05-09-2006, 07:09 PM
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Recommendations on new setup! Supercharged Ok, my new setup is underway, I have a vortech supercharger with a 6psi pulley, i have the complete unit, its ready to go in, now I just have to order all of the supporting accessories ie: 42lb injectors, racetronix fuel pump setup, and forged internals. However, here is my dilemma, my current compression ratio is 11:1, too high for FI, because I am running LT4 heads unmolested. Now, this is no problem really because I am currently shopping summit for some good forged dished pistons that will drop my compression ratio. Can someone recommend a good 1 piece rear main seal crankshaft, some good forged dished blower pistons *stock bore*, and some good 5.7" forged rods? thanks a lot!
05-09-2006, 08:52 PM
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Here's what I have:
http://www.sivalves.com/ocdomestic_v...s_chevysb.html
1.94 intake SEV-2552-C
1.5 exhaust SEV-2809
http://www.jepistons.com/pdf/2005-srp2.pdf
9:1 compression. Part number 139632 for 355, you'd want 231315 I think.
I have stock rods and crank, not sure about main seal.
http://www.sivalves.com/ocdomestic_v...s_chevysb.html
1.94 intake SEV-2552-C
1.5 exhaust SEV-2809
http://www.jepistons.com/pdf/2005-srp2.pdf
9:1 compression. Part number 139632 for 355, you'd want 231315 I think.
I have stock rods and crank, not sure about main seal.
05-09-2006, 08:59 PM
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link aint workin for me 
btw, i can't change my heads/intake, i have the lt4 setup and i want to leave my heads intact, i'm just looking for a good forged rotating assembly with stock bore, and pistons that will drop my compression ratio to 9:1
btw, i can't change my heads/intake, i have the lt4 setup and i want to leave my heads intact, i'm just looking for a good forged rotating assembly with stock bore, and pistons that will drop my compression ratio to 9:1
05-09-2006, 09:19 PM
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You need acrobat reader. It's from www.jepistons.com
Here's what it says:
350/400 INVERTED DOME
• 4032 low expansion high silicon aluminum
alloy heat treated to SRP specifications
• Ring land and crown thickness specifically
engineered for mild turbo, supercharged and
nitrous applications
• Forced Pin Oiler for increased wrist pin
lubrication
• Pin fitting and double spiro locks included
• 927-2750-150 wall wrist pin
(130 grams) included
• CNC Machined ring grooves accept 1/16, 1/16,
3/16 rings (Rings Sold Seperately)
• Optional bearing steel pins available.
350CI
4.000 BORE
3.48 STROKE
5.7 ROD LENGTH
1.56 COMP HEIGHT
8.9CR w/58cc 8.4CR w/64cc 8.0CR w/70cc
-24cc DOME VOLUME
481 GRAM WEIGHT
PN:231315
Premium Ring Set#J100F8-4000-5
Here's what it says:
350/400 INVERTED DOME
• 4032 low expansion high silicon aluminum
alloy heat treated to SRP specifications
• Ring land and crown thickness specifically
engineered for mild turbo, supercharged and
nitrous applications
• Forced Pin Oiler for increased wrist pin
lubrication
• Pin fitting and double spiro locks included
• 927-2750-150 wall wrist pin
(130 grams) included
• CNC Machined ring grooves accept 1/16, 1/16,
3/16 rings (Rings Sold Seperately)
• Optional bearing steel pins available.
350CI
4.000 BORE
3.48 STROKE
5.7 ROD LENGTH
1.56 COMP HEIGHT
8.9CR w/58cc 8.4CR w/64cc 8.0CR w/70cc
-24cc DOME VOLUME
481 GRAM WEIGHT
PN:231315
Premium Ring Set#J100F8-4000-5
05-09-2006, 09:43 PM
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thanks a lot for the info! I'm looking at those and these : http://store.summitracing.com/partde...0&autoview=sku
my lt4 heads have a 54.4 cc combustion chamber, and these lower the CR even more than the ones above, it's just a matter of price now. Also, are there any distinguishing features about the GEN II LT based connecting rods from the GEN I 350 smallblocks? Will any 5.7" rod work in my LT4, as long as its 5.7" and made for a smallblock 350? thanks
my lt4 heads have a 54.4 cc combustion chamber, and these lower the CR even more than the ones above, it's just a matter of price now. Also, are there any distinguishing features about the GEN II LT based connecting rods from the GEN I 350 smallblocks? Will any 5.7" rod work in my LT4, as long as its 5.7" and made for a smallblock 350? thanks
