What whp should this motor support approx? TSP 347 longblock
11-20-2013, 03:48 PM
#1
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What whp should this motor support approx? TSP 347 longblock I emailed Texas Speed about this but haven't heard back yet
I’m purchasing a 2002 Corvette coupe that has a TSP long block in it along with an STS turbo kit. The turbo kit is still on the stock fuel system and is tuned making 475whp on 7psi currently. I plan to add injectors/pump/etc and turn up the boost but I’d like to know what whp level is considered safe for the bottom end in the car as well as the compression ratio. Based on the info in the invoice I got from the previous owned the compression ratio is approx 9.0:1 but I’d like to make sure my math is correct.
Here's what the Invoice has...
LS1 block
Wiseco -11 dish pistons (3.903 bore)
Callies Compstar Con Rods (6.125 rod length, 3.622 stroke, 1.300 CH)
ACL rod and main bearings
ARP head, cam, and balancer bolts
ARP Main studs
OEM Headgaskets
Dart Pro-1 205cc heads
TSP 224/228 .581/.588 114LSA cam
What would you guys think this should support approx?
Thanks!
I’m purchasing a 2002 Corvette coupe that has a TSP long block in it along with an STS turbo kit. The turbo kit is still on the stock fuel system and is tuned making 475whp on 7psi currently. I plan to add injectors/pump/etc and turn up the boost but I’d like to know what whp level is considered safe for the bottom end in the car as well as the compression ratio. Based on the info in the invoice I got from the previous owned the compression ratio is approx 9.0:1 but I’d like to make sure my math is correct.
Here's what the Invoice has...
LS1 block
Wiseco -11 dish pistons (3.903 bore)
Callies Compstar Con Rods (6.125 rod length, 3.622 stroke, 1.300 CH)
ACL rod and main bearings
ARP head, cam, and balancer bolts
ARP Main studs
OEM Headgaskets
Dart Pro-1 205cc heads
TSP 224/228 .581/.588 114LSA cam
What would you guys think this should support approx?
Thanks!
11-22-2013, 09:42 AM
#4
Wiseco + callies + arp everything. Pretty much 800+.
If you are going to go that high, I'd swap the head bolts out for the arp head studs though.
I have the same build in my car and I have revved it to 7200 like 200 times (just because) and it has never had an issue. Your engine is stout. The stoutest you can get before upgrading the crank, which is unnecessary unless your going over a grand.
If you are going to go that high, I'd swap the head bolts out for the arp head studs though.
I have the same build in my car and I have revved it to 7200 like 200 times (just because) and it has never had an issue. Your engine is stout. The stoutest you can get before upgrading the crank, which is unnecessary unless your going over a grand.
11-22-2013, 11:37 AM
#5
With those types of parts the motor would be conservatively rated at 900hp.
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Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
