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  #121  
Old 10-28-2022, 03:51 PM
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charlie66 charlie66 is offline
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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 ..

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  #122  
Old 10-28-2022, 03:57 PM
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Do u have a pressure gauge where u can see it? That pump is probably to small or right on the edge! I never liked that pump, tried it years ago in my Grandville!
No its under the hood. What pump are you using ?

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

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  #123  
Old 10-28-2022, 04:02 PM
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What worries me is will a 12.6 afr be lean enough to burn the motor up on e85 that naturally aspirated ?

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  #124  
Old 10-28-2022, 08:57 PM
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No its under the hood. What pump are you using ?

What AFR are you at @ WOT ? Whats your target that you shoot for ?
I’m using my fast afr meter which was for gas, n it’s hard to read cause it’s used but it looks like it’s around 12.0? I have the A1000 pump .

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74 Grandville 2Dr 455 c.i 4550#
2011 1.60 60 ft,7.33@94.55-11.502@117.74


2017, 74 firebird -3600 lbs (all bests) 1.33 60 ft, 6.314@108.39 9.950@134.32
M/T 275/60 ET SS Drag Radial

2023,(Pontiac 505) 1.27 60 ft, 5.97@112.86, 9.48@139.31.... 275/60 Radial Pro's
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  #125  
Old 10-28-2022, 08:57 PM
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No its under the hood. What pump are you using ?

What AFR are you at @ WOT ? Whats your target that you shoot for ?
Quote:
Originally Posted by charlie66 View Post
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!

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Darby
74 Grandville 2Dr 455 c.i 4550#
2011 1.60 60 ft,7.33@94.55-11.502@117.74


2017, 74 firebird -3600 lbs (all bests) 1.33 60 ft, 6.314@108.39 9.950@134.32
M/T 275/60 ET SS Drag Radial

2023,(Pontiac 505) 1.27 60 ft, 5.97@112.86, 9.48@139.31.... 275/60 Radial Pro's
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  #126  
Old 10-28-2022, 08:59 PM
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grandville455 grandville455 is offline
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Originally Posted by charlie66 View Post
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?

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Darby
74 Grandville 2Dr 455 c.i 4550#
2011 1.60 60 ft,7.33@94.55-11.502@117.74


2017, 74 firebird -3600 lbs (all bests) 1.33 60 ft, 6.314@108.39 9.950@134.32
M/T 275/60 ET SS Drag Radial

2023,(Pontiac 505) 1.27 60 ft, 5.97@112.86, 9.48@139.31.... 275/60 Radial Pro's
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  #127  
Old 10-28-2022, 09:49 PM
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I’m using my fast afr meter which was for gas, n it’s hard to read cause it’s used but it looks like it’s around 12.0? I have the A1000 pump .
Yeah thats what id like 12.0 or under .

I know what you mean . I have mine mounted on the dash right in front of me and its still hard to read .

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  #128  
Old 10-28-2022, 10:15 PM
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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..

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  #129  
Old 10-28-2022, 10:22 PM
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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..

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  #130  
Old 10-28-2022, 10:31 PM
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What do you think of the Magnafuel 750?

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  #131  
Old 10-28-2022, 10:41 PM
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The pro tuner 750 (4303) is a big dog. I used the 4302 (525) til I went to an in tank set up.

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  #132  
Old 10-29-2022, 08:46 AM
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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..

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  #133  
Old 10-29-2022, 09:24 AM
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How are you feeding the current pump? Fuel cell? Stock tank?

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  #134  
Old 10-29-2022, 09:39 AM
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stock with sump

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  #135  
Old 10-29-2022, 09:45 AM
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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?

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  #136  
Old 10-29-2022, 09:48 AM
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I mean , thats a good point . You cant test it going down the road right. lol

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  #137  
Old 10-29-2022, 09:52 AM
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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 ...

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  #138  
Old 10-29-2022, 10:00 AM
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Understood.

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  #139  
Old 10-29-2022, 10:03 AM
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I wish i had another pump to just try. Id be all for it...

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  #140  
Old 10-29-2022, 03:38 PM
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Default E85
I have a Domi E85 Brand New built by Kevin At CSU Im thinking about selling
I got my EFI working well again

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