How much boost on E85

I know some here locally ran 42 psi on stock block, stock stroke, E85 and so forth. I guess it can be done!

Prasad
 
28 pounds with a 6776 on the dyno. Stopped there because Injector duty cycle was at 95%

Posted from the TurboBuick.Com mobile app
 
dandaman said:
This is an old thread but I thought id dig it up and see how things have progressed in the e85 tuning world.
Where are you guys at these days with your boost/timing/afrs? Im at 24psi / 23.5deg timing with 10.5 afr and it loves it. Care to share?
Click to expand...
Post your hp or mph info so we can see what the mass flow
 
tbone87 said:
How do u figure mass flow??

Posted from the TurboBuick.Com mobile app
Click to expand...
Rpm@power. If the engine has peak power at around 5500 it will have a mass flow in lbs/min about 10% of it's actual power. Keep in mind hp is a formula. So 650hp is about 65lbs/min in the mid 5000's. If you increase engine speed 10% you will see more power because of rpm but mass flow may only increase a little over the slower rpm engine. Mass flow data enables us to compare any engine regardless of rpm.
 
it was 610 at the wheels around 650 torque, i used to have the dyno pic saved but i lost all my files
 
bison said:
Post your hp or mph info so we can see what the mass flow
Click to expand...

Not too sure on HP at a guess around 700rwhp.
Went 9.34@152 few weeks back. I shift at 7100rpm.
Cars rear end was very loose and a lot of wheel spin resulted. I've since got new adjustable shocks and new diff in the car. Going to go out at Easter.

Just wondering how far I can go with timing... Inlet temps are around 45-50c

Afr 10.4 - 10.5

I'm thinking around 24deg and 28lbs boost might be my limit.

Thoughts?
 
Last edited:
dandaman said:
Not too sure on HP at a guess around 700rwhp.
Went 9.34@152 few weeks back. I shift at 7100rpm.
Cars rear end was very loose and a lot of wheel spin resulted. I've since got new adjustable shocks and new diff in the car. Going to go out at Easter.

Just wondering how far I can go with timing... Inlet temps are around 45-50c

Afr 10.4 - 10.5

I'm thinking around 24deg and 28lbs boost might be my limit.
That's more like 950whp and 105lbs/min if the car is 3600lbs.
Thoughts?
Click to expand...
 
Its not a corolla its a Aussie comodore. It would be around 3000lbs plus me at 200lbs.

They are 3200lbs from factory.

I really don't know what power it makes. Was only a guess.

We had it on the dyno about a year ago and it made 580rwhp on 14psi boost.

Since then I have not had it back on and we are at 23-24psi boost.

I'm just going to keep adding boost and watch my inlet and eg temps.
1529896_10202753144453375_353867624_o.jpg
 
Last edited:
dandaman said:
Its not a corolla its a Aussie comodore. It would be around 3000lbs plus me at 200lbs.

They are 3200lbs from factory.

I really don't know what power it makes. Was only a guess.

We had it on the dyno about a year ago and it made 580rwhp on 14psi boost.

Since then I have not had it back on and we are at 23-24psi boost.

I'm just going to keep adding boost and watch my inlet and eg temps.
1529896_10202753144453375_353867624_o.jpg
Click to expand...
You should log backpressure also
 
I do log back pressure. I was originaly using GT3076R turbos but the back pressure was high due to the small exaust wheels. I switched to the GT3582R and all is good.
 
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