Quote:
Originally Posted by Stielow
The LS9 is a proven performer with head room to make more power. The LT4 stuff is very nice but not a lot of extra head room left on that blower.
Bang for the buck the stock LT4 is great. If you want to make more power later the LS9 is easier as of Nov 2015.
As the LT engines become more main stream things may change.
Mark
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Expanding on what Mark said:
If you are running a stock LT4, it's a great engine (provided adequate cooling). If you are wanting something more powerful, there are better choices (at least today).
The engine Mark is running in JA2.0 is evolution of 7.0SC package that we started in 2009. We are now capable of 1000hp/1000tq with arguably better driveability than we had with earlier lesser powered versions.
LT engines (at least with OEM ECM) are power based control systems. You
MUST have an accurate torque map of entire engine operating range to make these systems work seamlessly. Alternatively, you could switch to MoTeC M142 or M182 and get back to power being a result, rather than an input - and that could have potential.....
LT4 SC is to small to support basically anything over stock power levels. Again, great if you are happy with 650hp..... But I like more!
I could be proved wrong, but I think we are years away from having an LT package at 900+hp/tq range
with the driveability and other attributes that Greg Weld was talking about a few posts ago. If he thinks Hellfire drives great, JA2.0 is even better.
Dave
BTW Sieg: I did happen to catch your 'fix' comment - and found it quite funny.