How Much Pump Gas Powa???
How Much Pump Gas Powa??? Just wanted to get some opinions on pushing pump 91 fuel only, no meth.
How far have some of you pushed pump gas power/boost wise?
Current combo is as follows running really close to 16 lbs. at the moment with 12 degrees of timing at WOT but wondering if I should keep going and if ice in the A2W would provide the extra cushion needed.
Would it be possible to get up into the 20 lb. range using ice water to keep IAT's low?
What are your guys thoughts?
LS1 / Forged dished piston (9.5:1 ish comp?) H-Beam rod.
CNC Ported 243 heads (might be 317 but I doubt it with the dished piston)
FI Billet S484 T6 w/ 96mm Turbine
Brute Speed FI Cam
Vic Jr. Intake / Aarons Elbow / 105mm TB
2000hp A2W setup (IAT's never get over 100 degrees with ambient temp water even after back to back pulls, haven't tried any ice yet)
TH400 / 3.50 gear / 28 inch tire.
How far have some of you pushed pump gas power/boost wise?
Current combo is as follows running really close to 16 lbs. at the moment with 12 degrees of timing at WOT but wondering if I should keep going and if ice in the A2W would provide the extra cushion needed.
Would it be possible to get up into the 20 lb. range using ice water to keep IAT's low?
What are your guys thoughts?
LS1 / Forged dished piston (9.5:1 ish comp?) H-Beam rod.
CNC Ported 243 heads (might be 317 but I doubt it with the dished piston)
FI Billet S484 T6 w/ 96mm Turbine
Brute Speed FI Cam
Vic Jr. Intake / Aarons Elbow / 105mm TB
2000hp A2W setup (IAT's never get over 100 degrees with ambient temp water even after back to back pulls, haven't tried any ice yet)
TH400 / 3.50 gear / 28 inch tire.
Popular Reply
Jul 13, 2023, 08:26 PM
Inch the timing up till you drive over the crank, then back it off 2 degrees.
Launching!
Joined: May 2023
Posts: 286
Likes: 94
From: AZ
Just wanted to get some opinions on pushing pump 91 fuel only, no meth.
How far have some of you pushed pump gas power/boost wise?
Current combo is as follows running really close to 16 lbs. at the moment with 12 degrees of timing at WOT but wondering if I should keep going and if ice in the A2W would provide the extra cushion needed.
Would it be possible to get up into the 20 lb. range using ice water to keep IAT's low?
What are your guys thoughts?
LS1 / Forged dished piston (9.5:1 ish comp?) H-Beam rod.
CNC Ported 243 heads (might be 317 but I doubt it with the dished piston)
FI Billet S484 T6 w/ 96mm Turbine
Brute Speed FI Cam
Vic Jr. Intake / Aarons Elbow / 105mm TB
2000hp A2W setup (IAT's never get over 100 degrees with ambient temp water even after back to back pulls, haven't tried any ice yet)
TH400 / 3.50 gear / 28 inch tire.
How far have some of you pushed pump gas power/boost wise?
Current combo is as follows running really close to 16 lbs. at the moment with 12 degrees of timing at WOT but wondering if I should keep going and if ice in the A2W would provide the extra cushion needed.
Would it be possible to get up into the 20 lb. range using ice water to keep IAT's low?
What are your guys thoughts?
LS1 / Forged dished piston (9.5:1 ish comp?) H-Beam rod.
CNC Ported 243 heads (might be 317 but I doubt it with the dished piston)
FI Billet S484 T6 w/ 96mm Turbine
Brute Speed FI Cam
Vic Jr. Intake / Aarons Elbow / 105mm TB
2000hp A2W setup (IAT's never get over 100 degrees with ambient temp water even after back to back pulls, haven't tried any ice yet)
TH400 / 3.50 gear / 28 inch tire.
do you have e85 in your city ? if you do, that is hands down the best route. Of course then you are ******* with bigger fuel injectors and that whole bit.
if you want more power I'd throw on a 100 wet shot. cheap, more power, and significantly cools down the combustion chamber and IATs.
Just wanted to get some opinions on pushing pump 91 fuel only, no meth.
Current combo is as follows running really close to 16 lbs. at the moment with 12 degrees of timing at WOT but wondering if I should keep going and if ice in the A2W would provide the extra cushion needed.
Would it be possible to get up into the 20 lb. range using ice water to keep IAT's low?
Current combo is as follows running really close to 16 lbs. at the moment with 12 degrees of timing at WOT but wondering if I should keep going and if ice in the A2W would provide the extra cushion needed.
Would it be possible to get up into the 20 lb. range using ice water to keep IAT's low?
I'd totally be running a $300 WMI kit for that boost on that setup, especially with 91 octane. I'm doing it on 93, but at a point higher compression, but a smaller turbo. Playing with fire right now. What does the plugs say?
This is what I was basing my hopes on, 16 lbs. was the max limit I was really intending to run, anything higher and I was gonna do a pump gas/methanol mix.
I've talked to a few other guys running 18-20 lbs. on pump but I get every combo is different.
@ddnspider haven't checked any plugs up to this point because honestly, I don't know how to read them anyways.
Not seeing any knock and IAT's are really low so I thought that might give me a little more space as opposed to an A2A IC.
I've told my tuner my intentions and he hasn't come right out and said don't do that lol.
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Launching!
Joined: May 2023
Posts: 286
Likes: 94
From: AZ
EDIT: sorry, I was wrong and confusing it with methanol
Last edited by slothman; Jul 13, 2023 at 08:11 PM.
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Joined: May 2023
Posts: 286
Likes: 94
From: AZ
Yeah every combo is different which is why I really don't like that picture. I can say that most of the 9.0 - 9.5 compression combos that I see with average sized cams and "street sized" turbos wouldn't even make it to 15 psi on 91 octane out here in AZ with our temps, etc. Now I'm referring to guys who are actually out beating on it making full 1/4 mile pulls and not just driving it around on the street and making little hits here and there. Hell even most LSA/LS9 combos with their soft chamber heads and restriction free exhaust (which are easier to get timing in to than most turbo setups) are headed towards the single digits for timing at 15 psi on 91 oct here, and single digits starts to spell disaster as you are really starting to exceed what your fuel is capable of and it produces a crappy burn. Again, there are so many differences in combos that it's impossible to say what it would take exactly...
Thinking I'll just leave it there, start mixing up some pump/meth and go from there.
I've watched videos of guys explaining it and I just don't see what they see, might be my partial color blindness.
E85 isn't an option, gonna leave it and mix some high test.
Launching!
Joined: May 2023
Posts: 286
Likes: 94
From: AZ
if the car is only driven on weekends etc, you could try boostane or torco octane booster. One can will bump you up to about 96-97 octane. If you keep the timing where it is now, you could up the boost a couple of pounds safely. plugs are also a big factor, you want to be running 2 steps colder with that much boost (you didn't mention which ones).
if the car is only driven on weekends etc, you could try boostane or torco octane booster. One can will bump you up to about 96-97 octane. If you keep the timing where it is now, you could up the boost a couple of pounds safely. plugs are also a big factor, you want to be running 2 steps colder with that much boost (you didn't mention which ones).
I'm gonna buy some methanol and mix it 50/50 with pump gas and run that with some ice in the cooler.
Plugs iirc are BR7EF's I think
TECH Fanatic
Joined: Jan 2009
Posts: 1,063
Likes: 475
From: Bostwick, GA.
"I'm not checking plugs because being totally honest, I don't know how."
Start by looking to see if any of the plug electrodes are missing....
Or educate yourself.
Here's enough to keep you busy for a while.
how to read spark plugs for tuning - Search (bing.com)
Start by looking to see if any of the plug electrodes are missing....
Or educate yourself.
Here's enough to keep you busy for a while.
how to read spark plugs for tuning - Search (bing.com)
"I'm not checking plugs because being totally honest, I don't know how."
Start by looking to see if any of the plug electrodes are missing....
Or educate yourself.
Here's enough to keep you busy for a while.
how to read spark plugs for tuning - Search (bing.com)
Start by looking to see if any of the plug electrodes are missing....
Or educate yourself.
Here's enough to keep you busy for a while.
how to read spark plugs for tuning - Search (bing.com)
Everyone says that, and I'm sure there are instances where it's true like running straight methanol, and maybe nitrous. I call BS on real street pump gas stuff. You can't tell the fueling, but you CAN tell the timing, heat range, and signs of detonation or speckling. I don't care if the plug has 1000 miles on it you can still tell that stuff.
