10.8:1 compression + Full Time E85 + 21psi.....will it work OK...?
08-21-2013, 11:58 AM
#21
Yup.
Not quite. I run E85 on my intercooled blower car and in Phoenix 116F weather my IAT's are 200F at the top of 4th gear. It's pulling 4* of timing for that hot IAT. Meth is next on my list and will allow me to get max power for the whole run. Especially since it's a street car and I like doing 3-4-5 pulls on the backroads around my house(in Mexico).
To the OP,
It's not like you will be on 21psi all the time. Just during those "Mexico" moments. I think you will be fine with E85 and meth with a good safe tune. Don't use the meth for fueling. Just to keep the IAT's in check so you don't frag the motor if the meth fails.
Not quite. I run E85 on my intercooled blower car and in Phoenix 116F weather my IAT's are 200F at the top of 4th gear. It's pulling 4* of timing for that hot IAT. Meth is next on my list and will allow me to get max power for the whole run. Especially since it's a street car and I like doing 3-4-5 pulls on the backroads around my house(in Mexico).
To the OP,
It's not like you will be on 21psi all the time. Just during those "Mexico" moments. I think you will be fine with E85 and meth with a good safe tune. Don't use the meth for fueling. Just to keep the IAT's in check so you don't frag the motor if the meth fails.
08-21-2013, 02:23 PM
#22
Yup.
Not quite. I run E85 on my intercooled blower car and in Phoenix 116F weather my IAT's are 200F at the top of 4th gear. It's pulling 4* of timing for that hot IAT. Meth is next on my list and will allow me to get max power for the whole run. Especially since it's a street car and I like doing 3-4-5 pulls on the backroads around my house(in Mexico).
To the OP,
It's not like you will be on 21psi all the time. Just during those "Mexico" moments. I think you will be fine with E85 and meth with a good safe tune. Don't use the meth for fueling. Just to keep the IAT's in check so you don't frag the motor if the meth fails.
Not quite. I run E85 on my intercooled blower car and in Phoenix 116F weather my IAT's are 200F at the top of 4th gear. It's pulling 4* of timing for that hot IAT. Meth is next on my list and will allow me to get max power for the whole run. Especially since it's a street car and I like doing 3-4-5 pulls on the backroads around my house(in Mexico).
To the OP,
It's not like you will be on 21psi all the time. Just during those "Mexico" moments. I think you will be fine with E85 and meth with a good safe tune. Don't use the meth for fueling. Just to keep the IAT's in check so you don't frag the motor if the meth fails.
When would I spray the Meth during a run...?
Or is it a matter of where the Meth nozzles are placed...?
And EXACTLY......I won't be racing this car at a drag track..EVER. It'll be a roll racer that will be lucky to see 3-4 all out pulls each month......
I will spare no expense on the best Meth kit, multiple nozzles.....whatever.....to keep it from detonating.
.
Last edited by LS6427; 08-21-2013 at 02:28 PM.
08-21-2013, 03:01 PM
#24
What I mean by not for fueling is that if the meth quits working, my tune will compensate and the injectors have enough room to work. I don't rely on the meth to make the power. I use the meth to lower the IAT so I can run full timing on E85. If the meth quits spraying it will just pull back timing a bit, but it wouldn't grenade my motor. Like rotary just said, the cam design will also play a part in whether it will hold up. Without putting the combo together you don't even know if you will need 21psi to hit your goal yet. It could be 15psi or it could be 25psi. Depends how efficient and free flowing your engine and exhaust is. Boost is just a measure of restriction. There's a twin turbo C6 build that Vengeance just finished up doing 1500rwhp on 19psi.
http://forums.corvetteforum.com/1584720997-post573.html
http://forums.corvetteforum.com/1584720997-post573.html
08-21-2013, 04:16 PM
#25
What I mean by not for fueling is that if the meth quits working, my tune will compensate and the injectors have enough room to work. I don't rely on the meth to make the power. I use the meth to lower the IAT so I can run full timing on E85. If the meth quits spraying it will just pull back timing a bit, but it wouldn't grenade my motor. Like rotary just said, the cam design will also play a part in whether it will hold up. Without putting the combo together you don't even know if you will need 21psi to hit your goal yet. It could be 15psi or it could be 25psi. Depends how efficient and free flowing your engine and exhaust is. Boost is just a measure of restriction. There's a twin turbo C6 build that Vengeance just finished up doing 1500rwhp on 19psi.
http://forums.corvetteforum.com/1584720997-post573.html
http://forums.corvetteforum.com/1584720997-post573.html
I guess with high flowing heads and the exhaust that Modular Turbo designed it will be very free flowing. Just gotta find the best head/intake/TB combo now Long with METH for sure........and make sure the cam is right. That will be up to my builder....
Then I'll give it a go with 10.8:1 compression, E85 and Meth.
.
.
Last edited by LS6427; 08-21-2013 at 04:23 PM.
08-21-2013, 06:55 PM
#26
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You first say "'ll even pull the engine and change the pistons if I have to. It's 1,200 RWHP or bust......."
But then you say "The motor is built, its already in the car........I'm trying to figure a way to get this done with the pistons I have and have the engine last a long time"
So do you want 1200rwhp on a limited life basis with the flat pistons you have in the car or do you want a reliable motor you can beat on without worrying. What flat top pistons were put in the car? Most flat top pistons aren't suited for more than 10-12lbs of boost anyways. Did AES spec this motor for a turbo setup?
But then you say "The motor is built, its already in the car........I'm trying to figure a way to get this done with the pistons I have and have the engine last a long time"
So do you want 1200rwhp on a limited life basis with the flat pistons you have in the car or do you want a reliable motor you can beat on without worrying. What flat top pistons were put in the car? Most flat top pistons aren't suited for more than 10-12lbs of boost anyways. Did AES spec this motor for a turbo setup?
08-21-2013, 07:23 PM
#27
So do you want 1200rwhp on a limited life basis with the flat pistons you have in the car or do you want a reliable motor you can beat on without worrying. What flat top pistons were put in the car? Most flat top pistons aren't suited for more than 10-12lbs of boost anyways. Did AES spec this motor for a turbo setup?
08-21-2013, 07:59 PM
#28
Like everyone has said, I'd pull the motor now, put in the right pistons for the amount of power your looking to make, with at least valve releifs if not a full dished piston.
Pay me now or pay me later. It's a hell of a lot cheaper to pull the motor now, replace the pistons, then to torch the motor and possibly scrap the block, crank, rods and everything because the motor let go at high rpm/power.
It would be a different story if you were looking to make 600-800 hp, but since you're focused on 4 digit power, do it right up front.
Pay me now or pay me later. It's a hell of a lot cheaper to pull the motor now, replace the pistons, then to torch the motor and possibly scrap the block, crank, rods and everything because the motor let go at high rpm/power.
It would be a different story if you were looking to make 600-800 hp, but since you're focused on 4 digit power, do it right up front.
08-22-2013, 06:33 AM
#32
AFR makes a 72cc head you could toss on there to help a LITTLE.
I wouldn't be worried about it IF your tuneup is good. Keep your IAT's in check and I'd pour the fuel to it to keep it safe and not think twice about it IF you guys have true e85.
If you aren't confident in the tune, then don't even try it.
I wouldn't be worried about it IF your tuneup is good. Keep your IAT's in check and I'd pour the fuel to it to keep it safe and not think twice about it IF you guys have true e85.
If you aren't confident in the tune, then don't even try it.
08-22-2013, 05:16 PM
#37
Well ditch the heat exchanger and put a jug in the trunk. All heat exchangers are good for is weight. Put a jug in the trunk with some water and ice and put that weight to work!
