Quote:
Originally Posted by BMEP
Are LT1 injectors sufficient for a 600whp NA E85 416 stroker, 6800-7000 max RPM?
I know they flow enough for 550whp 6.2 NA E85.
The cam will have +32% fuel lobe.
If LT4 injectors are needed, is the vehicle drivable without a tune? I’m wondering how to properly break it in and seat the rings before driving it to the tuner.
What compression ratio are you guys running with E85 and only occasional 92 gas?
Any experiences you’d like to share with the different 416 stroker kits, brands, piston brands, rods, cranks, build issues, etc… is welcome.
This is a DD C7 M7, autoX occasionally.
Thanks
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Well I run LT4 injectors on my LME 416 stroker. AMP did the tune allowing for the injectors, the 103MM NW TB, Gwatney Performance NFC Cam, ported heads, ported MSD manifold and roughly 14:1 compression. The car would definitely NOT be drivable without the tune. I run E85 all the time which really measures out to about E80 at the place I normally get fuel. In fact, normally you would NOT run this cam without a higher stall convertor but AMP was able to tune it where it is extremely drivable even as a daily driver which it is.
Here below is a general list on my 416
MISC info on Engine Replacement
The following parts were used on the NEW 416 engine install. I mention this because these parts can be expensive and you need to account for these should you ever go this route yourself.
NEW GM Oil Pan (Original pan was damaged)
NEW GM LT4 Oil Pump (NEVER reuse an oil pump on a failed engine)
ARP Head Studs (not required but advisable for 14:1 compression)
LT4 Head Gaskets
NEW GM LS7 Lifters
Chromoly Push Rods
NEW Front Seal
NEW Crank Bolt
NEW Cam Retainer Plate
NEW Timing Chain
CAM Phaser
AMS Break in OIL
OIL FILTER
NGK TR6IX plugs
LT4 Fuel Injectors
LT4 Fuel Pump
Below is a more specific set of soecs that LME provided