cbr600rx7
New Member
- Joined
- Feb 16, 2017
- Messages
- 135
- Reaction score
- 1
- Points
- 0
- Location
- North East USA
- Vehicle Year
- 93,73,12
- Make / Model
- Ford and Ford
- Engine Size
- 2.3, 360ci, 5.0
- Transmission
- Manual
So it's been asked over and over again and the general consensus is it's a waste of time or it's going to blow. There also seems to be a lot of mixed information about what the factory ranger MAF, injectors, and bottom end is capable of.
First off we know the cast pistons with over 9 to 1 compression is not great for a boost applications however it's not crazy high by any means. The cast pistons will not handle any sort of detonation very well so that is very much the limiting factor on the bottom end. It would seem to me a well tuned 2.3 or 2.5 could live a long time on a low boost set up.
So here is my questions:
Is the factory ECU capable of compensating for a 30 hp increase over the stock air flow? Some say none and some say up to 6 or 7 pounds of boost.
What is the real limit of the stock injectors? 3% over stock, 4 psi of boost, 140 wheel horsepower? Seems like a lot of mismatched information out there.
Clearly a 2.3 turbo bottom end and computer has a much greater horsepower potential and would be very durable. however 2.3 turbo manifolds are cheap and so are T3 turbos.
I had a crazy idea of trying a low boost slow spooling GM-3 on a factory turbo coupe manifold with a manual waste gate set at 4 psi. Definitely not for performance but more for when I need a little extra in the mountains or when loaded down. I of course would go to 92+ octane and upgrade the fuel pump along with it.
First off we know the cast pistons with over 9 to 1 compression is not great for a boost applications however it's not crazy high by any means. The cast pistons will not handle any sort of detonation very well so that is very much the limiting factor on the bottom end. It would seem to me a well tuned 2.3 or 2.5 could live a long time on a low boost set up.
So here is my questions:
Is the factory ECU capable of compensating for a 30 hp increase over the stock air flow? Some say none and some say up to 6 or 7 pounds of boost.
What is the real limit of the stock injectors? 3% over stock, 4 psi of boost, 140 wheel horsepower? Seems like a lot of mismatched information out there.
Clearly a 2.3 turbo bottom end and computer has a much greater horsepower potential and would be very durable. however 2.3 turbo manifolds are cheap and so are T3 turbos.
I had a crazy idea of trying a low boost slow spooling GM-3 on a factory turbo coupe manifold with a manual waste gate set at 4 psi. Definitely not for performance but more for when I need a little extra in the mountains or when loaded down. I of course would go to 92+ octane and upgrade the fuel pump along with it.