Ls1 power guesses
Thread Starter
Heel & Toe
Joined: Apr 2014
Posts: 16
Likes: 0
From: Topeka Ks
Ls1 power guesses
Hi everybody, so let me start by saying I have been building this for a little while and am hopefully gonna be done this week. But here is a list of my parts and I was wondering what you guys thought this combo would make:
Stock ls1 bottom
317 heads
Ls9 cam (proper springs and ls7 lifters)
Bbk ssi intake
Bbk shorties
2.5 x pipe no cats
Borla bullet exhaust
A&a supercharger d1sc with 3.6 pulley
60lb injectors
E85
Any guesses, not really looking to be told stuff will break I figure it will run until it won't. Just all around thoughts on power
Stock ls1 bottom
317 heads
Ls9 cam (proper springs and ls7 lifters)
Bbk ssi intake
Bbk shorties
2.5 x pipe no cats
Borla bullet exhaust
A&a supercharger d1sc with 3.6 pulley
60lb injectors
E85
Any guesses, not really looking to be told stuff will break I figure it will run until it won't. Just all around thoughts on power
Last edited by Khkingpin; Apr 19, 2014 at 01:30 AM. Reason: Forgot engine spec
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Thread Starter
Heel & Toe
Joined: Apr 2014
Posts: 16
Likes: 0
From: Topeka Ks
My thoughts on why I have a stock fuel pump is, with a 40 amp boost a pump, which I know lots of people with similar set ups and the 20 amp make more than 550 at 8 lbs of boost. I had thought about a better pump however ls1 cars flow at 58psi out of the box and the boost a pump should keep it pretty consistent, with 60lb injectors which are rated at 43.5 psi with 58psi the should push 69.2 at 80% duty cycle. I am not too concerned with fuel starving at this point I might change my mind in the future, I know fuel pumps are cheap I think I will be good and in the low 600's. I could be wrong heck it might not even start and I will be at 0. Thank you for your thoughts
Thread Starter
Heel & Toe
Joined: Apr 2014
Posts: 16
Likes: 0
From: Topeka Ks
Melting Slicks
Joined: Jul 2008
Posts: 3,002
Likes: 216
From: Houston Texas
2018 Corvette of Year Finalist
2017 C5 of Year Finalist
You didn't mention a hotwire kit or boost-a-pump so I guess you are trying to do this with a stock pump and less than optimal voltage?
If so, the 60# injectors and stock pump will limit you to around 550 rwhp or less. Let us know how it turns out.
If so, the 60# injectors and stock pump will limit you to around 550 rwhp or less. Let us know how it turns out.
Thread Starter
Heel & Toe
Joined: Apr 2014
Posts: 16
Likes: 0
From: Topeka Ks
Here's a quick update after a misserable time at the tuners I had 3 injectors go static and bought some 80 lbs ones from him. My knock sensors gasket decided to stop gasketing, if that's a word and sprayed oil everywhere. So we tuned as best we could, I will Dyno tune it there in a few weeks as long as more stuff doesn't break. I think I am going to add a 255 walboro also just because it makes sense.
Later that night I replaced the seal in Valley and on the knock sensors. So I decided y not try and drive it it's a got a decent tune, and now it actually feels slower. That makes zero sense it runs great it just doesn't launch at all and I back off before it get too lean. Anyone else have this problem with launching?
Later that night I replaced the seal in Valley and on the knock sensors. So I decided y not try and drive it it's a got a decent tune, and now it actually feels slower. That makes zero sense it runs great it just doesn't launch at all and I back off before it get too lean. Anyone else have this problem with launching?
Le Mans Master
Joined: Jan 2009
Posts: 7,767
Likes: 19
From: East Texas
Here's a quick update after a misserable time at the tuners I had 3 injectors go static and bought some 80 lbs ones from him. My knock sensors gasket decided to stop gasketing, if that's a word and sprayed oil everywhere. So we tuned as best we could, I will Dyno tune it there in a few weeks as long as more stuff doesn't break. I think I am going to add a 255 walboro also just because it makes sense.
Later that night I replaced the seal in Valley and on the knock sensors. So I decided y not try and drive it it's a got a decent tune, and now it actually feels slower. That makes zero sense it runs great it just doesn't launch at all and I back off before it get too lean. Anyone else have this problem with launching?
Later that night I replaced the seal in Valley and on the knock sensors. So I decided y not try and drive it it's a got a decent tune, and now it actually feels slower. That makes zero sense it runs great it just doesn't launch at all and I back off before it get too lean. Anyone else have this problem with launching?
