forged crank, rods, diamond pistons. e85 will be much more capable. Bore out to 302. 700 whp probably 12 to 15 pounds.
what compression ratio?
forged crank, rods, diamond pistons. e85 will be much more capable. Bore out to 302. 700 whp probably 12 to 15 pounds.
lower the better for high boostwhat compression ratio?
it not a solid axle I don’t believe. Not really sure what tru trac means
Hopefully it is a manual Mach 1 engine, if not, you will need a forged crank too.
Bump compression ~9.0-9.5. Diamond pistons, Manley Rods, keep the kellog crank if it has one, ARP 2000 everything (rod bolts, side bolts, main bolts, head studs) Cometic head gaskets. Put in a full return fuel system (Prep for E85) then let it eat.
If you want to spend another 2k, go custom cams, springs ect.
it is a manual Mach one motor.
Diamond pistons are better than Manley pistons?
I can get e85 relatively close to me also. Currently $2.06 a gallon
How do you 'bore out' to a 302? He would be much better off just leaving the block as close to stock bore as possible.forged crank, rods, diamond pistons. e85 will be much more capable. Bore out to 302. 700 whp probably 12 to 15 pounds.
That is old school thinking. New Coyotes come 12:1 compression, so there is no need for low compression. He could go at least 10:1 minimum and more depending on fuel.lower the better for high boost
'03/04 Cobras do not have knock sensors. The J&S thing is neat, but you'd be best off going to a standalone before installing that and knock detection isn't needed running e85.Cobras have knock sensors and can pull timing to control detonation. If you are really worried you can run. J&S Vampire to pull timing. John's anti detonation controller has progressive knock control and I don't regret the expense
ideally I’d like to get to 700hp
This car is going to be a project and I want to do a lot of the work myself besides tuning.
Not to concerned about the axle. I have an enclosed trailer to get it to the track and will mainly take short trips close to home.
it not a solid axle I don’t believe. Not really sure what tru trac means
Once you go corn, you won't ever want to go back.
Also, make sure you upgrade too the tool steel wrist pins.
I am a fan of Diamond Pistons, that is what I am running. I have never ran Manley pistons so I have no idea about them. I am running -5.2 cc dished Diamond pistons with 4V reliefs, Hard coat anodize tops and coated skirts. If I were to do it again, I'd skip the hard coat, they look great but are more race oriented for alcohol fuel, that was an extra $400 to have them coated. My calculated CR is around 10.3 . My car is on corn full time.
View attachment 1662894 View attachment 1662895
How do you 'bore out' to a 302? He would be much better off just leaving the block as close to stock bore as possible.
That is old school thinking. New Coyotes come 12:1 compression, so there is no need for low compression. He could go at least 10:1 minimum and more depending on fuel.
Comparing the old style 4V terminator engine to the new coyote is not fair in regards to compression. Here is some reading on how the VVT I.E. phasing of the cams impacts dynamic compression ration and how it is used to allow these engines to run larger amounts of boost than most think is possible.
Boosted Coyote Engines using VVT
Increasing compression instead of boost?
Increasing CR vs boost pressure
Now can you run more compression? Yes but you need the proper fuel to go along with it and it's not as simple as using the coyote as an example.
Knock sensors are not needed with e85. I've run 30+ lbs boost on pump e85 successfully for many years at 11:1 compression. My opinion stands, minimum 10:1 and nothing less.
You could use either of those, along with 93 as well. Preference for e85 all day though personally.At 10:1, could you use a fuel like ms109 or strictly e85?