[Scott65]

Have you tried decreasing the high speed air bleeds? I have no idea how much (or little) can be gained there or if it's super relative... Maybe get some comparable data from those that have one that's working well. Or convert it to EFI and be done with it

[charlie66]

Originally Posted by Scott65

Have you tried decreasing the high speed air bleeds? I have no idea how much (or little) can be gained there or if it's super relative... Maybe get some comparable data from those that have one that's working well. Or convert it to EFI and be done with it

My HS's are small already .018 front ,013 back .

I remember back when i was tuning with 91 . I was having a rich problem with my original older 1050 . I couldn't get it lean enough in the mid range. So i changed over to this newer one im using now which got me to the AFR i was looking for. So im thinking of setting up the old one for e85 and see if i can get it richer . Maybe there's something wrong with this newer one im using now..

Im not at the point to go EFI . I want to get it working with the carburetor.. EFI is nice to have . Its nice being able to log ..

[grandville455]

Originally Posted by charlie66

My HS's are small already .018 front ,013 back .

I remember back when i was tuning with 91 . I was having a rich problem with my original older 1050 . I couldn't get it lean enough in the mid range. So i changed over to this newer one im using now which got me to the AFR i was looking for. So im thinking of setting up the old one for e85 and see if i can get it richer . Maybe there's something wrong with this newer one im using now..

Im not at the point to go EFI . I want to get it working with the carburetor.. EFI is nice to have . Its nice being able to log ..

Those are awful small bleeds! Wow! Mine are .025, why different sizes?

[charlie66]

Originally Posted by grandville455

Those are awful small bleeds! Wow! Mine are .025, why different sizes?

I made them small just to jump on the extreme side because everything i was trying wasn't resulting into any positive change . So i just left them there . I usually have them between .024 - .026 . So basically i was experimenting . I was surprised when nothing changed..

[charlie66]

What worries me is will a 12.6 afr be lean enough to burn the motor up on e85 that naturally aspirated ?

[grandville455]

Originally Posted by charlie66

No its under the hood. What pump are you using ?

What AFR are you at @ WOT ? Whats your target that you shoot for ?

Originally Posted by charlie66

What worries me is will a 12.6 afr be lean enough to burn the motor up on e85 that naturally aspirated ?

You won’t burn it up, ethanol is very forgiving compared to gas I was told!

[charlie66]

Originally Posted by grandville455

You won’t burn it up, ethanol is very forgiving compared to gas I was told!

Thats good to hear .

The motor seems to really like the tune at 12.6 . But from all that ive read and have been told by a the fast n/a guys at the track is to shoot for 11.8 to12.0 with a #7 heat range for the plug. But i use a #8 because i like the color of the plug better then the #7. This motor makes peak power at 6600 but i shift 7200 into third because it recovers instantly .. With that said id rather be on the richer side of the tune..

[charlie66]

What do you think of the Magnafuel 750?

[Scott65]

The pro tuner 750 (4303) is a big dog. I used the 4302 (525) til I went to an in tank set up.

[charlie66]

Originally Posted by Scott65

The pro tuner 750 (4303) is a big dog. I used the 4302 (525) til I went to an in tank set up.

Yeah i have the 750 running my 4cyl.

But if this pump i have for my Ventura is the problem then i really need to figure it out. I mean its passing the gph test for the HP i have .. Im chasing my tail now lol..

[Scott65]

How are you feeding the current pump? Fuel cell? Stock tank?

[charlie66]

stock with sump

[grandville455]

Originally Posted by charlie66

stock with sump

I didn’t have good luck with a sump in the grandville! Was so much better when I went to cell and the magnafuel 275, does the guy with 509 have a cell?

[charlie66]

Originally Posted by grandville455

I didn’t have good luck with a sump in the grandville! Was so much better when I went to cell and the magnafuel 275, does the guy with 509 have a cell?

I rigged up a gauge on my cal against my windshield . So ill go make a pass tomorrow and see how the pressure holds up . That will at least get me closer to figuring this out..

Id rather not have a cell , its a street car .Ill have to look up the 275 and check it out.

IDK ill ask if hes got one .My pump is old so maybe it not up to the task anymore like Scott said.. I think this test im going to try will shed some light on that ..

[Scott65]

That should work fine as long as it's in the lowest part of the tank. Maybe the 125 pump can't keep up against the g force?

[charlie66]

I mean , thats a good point . You cant test it going down the road right. lol

[charlie66]

My friend is telling me he has a Holley blue with a 509 on E85 making 700 with no problems. So idk what to think at this point ...

[Scott65]

Understood.

[charlie66]

I wish i had another pump to just try. Id be all for it...

[63lemanster]

I have a Domi E85 Brand New built by Kevin At CSU Im thinking about selling
I got my EFI working well again