[johnta1]

I'd put 107 jets in front also. Not sure if those are big enough?


Try filling a 5 gallon container using the line to the carb.
Need at least 2 gallons a minute probably.
I'd say the pump you have will not flow enough alcohol/gas.


The accel. squirters probably need bigger also, at least the front.

[Dragncar]

I cured my 1050 by turning it into a 2 circuit also. Did it with metering blocks.

[johnta1]

When I 1st went to alcohol (100% methanol) the gas carb passages could not be made big enough really to handle it. Most ran without any jets in it.
Went to a dedicated alcohol carb. That works for awhile but too many problems.

Went MFI and never looked back.

[charlie66]

Originally Posted by Scott65

I think if you can keep the #8 line full under all conditions, it should be enough. Maybe pull the lines off the carb and do a flow check post regulator? See if the results make sense for 100gph through the system, or if it's less. As for the transition lean spot, I've never dealt with alky carbs. My only experience is with EFI. I'd ask the question have you increased timing any for the E85 set up? And are you sure it's a lean stumble, and not related to needing some more timing? Also, I edited an earlier post, not sure if you saw it, don't forget about stoich for e85 being in the 9.7 range. You mentioned earlier shooting for 11.8-12 and that may hurt something.

I am going to do a flow test . I just have to figure out how to measure the pumped gas correctly . What is the procedure with this again? Is it 1 gallon or 2 to be pumped out?

What are your thoughts on having all the fittings in the # 8 line that have a ID size of .160 smaller ? if the #8 line is on the edge of being adequate im wondering if these fittings will be part of the problem? I never realized how much smaller they make them until i had this problem and decided to measure them ..

I left the timing the same . Its locked out at 34 degrees. i do not see that as an issue . The power of the car this way is really good . Once past the bog it frys the tires in every gear . I have to lift . i have 315 drag radials on the car.. The car is very responsive after the bog..

My gauge does not read for the e85 scale . its lambda or AFR. So for stoichiometric in comparison for e85 i just leave the decimal out. So the 9.76 i see as 97 which is not far off from 1.00. but i just leave the gauge set reading for the AFR scale . Its less confusing for me
The 11.8 is my target . The 12.0 is the leanest i would allow it at wot. Thats what i meant . So say im on the lambda scale on the gauge, and im at .81 thats the same as E85 at 7.91 and 11.91 for AFR scale .

[charlie66]

Originally Posted by johnta1

I'd put 107 jets in front also. Not sure if those are big enough?


Try filling a 5 gallon container using the line to the carb.
Need at least 2 gallons a minute probably.
I'd say the pump you have will not flow enough alcohol/gas.


The accel. squirters probably need bigger also, at least the front.

I forgot to mention that i also have PVCR jets to compensate for the smaller front jets ..

I will try the the flow test .. Thanks

[charlie66]

Originally Posted by Dragncar

I cured my 1050 by turning it into a 2 circuit also. Did it with metering blocks.

Sorry i forgot to also mention , it was converted to 2 circuit..
Also was opened up in the metering blocks in all the needed areas. As well as the boosters in the body ..

[Scott65]

If you do a little math you can do the test in a gallon jug. 125/60=2.08 gpm. Probably have to measure it in 15 second interval to keep it in a 1 gallon container.

[charlie66]

Originally Posted by johnta1

When I 1st went to alcohol (100% methanol) the gas carb passages could not be made big enough really to handle it. Most ran without any jets in it.
Went to a dedicated alcohol carb. That works for awhile but too many problems.

Went MFI and never looked back.

Yeah i would imagine 100% would be a lot of fuel to move .

This bog thing really has me puzzled ..

I see a lot of guys on YB saying 12.3 is good for e85 at wot for N/A but im not comfortable with it that lean . Plus the fact that i cant make it leaner shows im on a cliff . So i need to gain control and ill feel better..

[charlie66]

So did the test for 1 gallon. it took 35 seconds .

[Scott65]

That's better than the stated volume at pressure. (If my math is right) I'd call it ok.

[charlie66]

The fuel line runs from the sump with #10 hose . Comes out with a 90 loops back into a filter then into the pump that is at the same level as the sump outlet. comes out into a #8 hose with 90 and up to the solid aluminum line with a 45 ran to the front of the car . Then 90's across to the bottom of the regulator. Just describing how its plumbed in case you want an idea of how i have things

[charlie66]

So thats about 2 gallons a minute ?

[charlie66]

Im not that good at math.lol

[charlie66]

Im going to try the test before the regulator now just to get a comparison .

[Scott65]

The advertised pump curve says 100gph@ ~7psi. So 100/60=1.66 gallons per minute. If you used a 2 gallon container a little over 1.5 gallons in a minute would be about right. Might show if the pump falls off over time or something weird, like voltage drop over time or such.

[charlie66]

Just did before the reg and it was 32 seconds .

[Scott65]

That number is very slightly low. The first number is a little high. Weird... Free flow should've been a little over a gallon in 30 seconds.
ETA: through lines and fittings the free flow number is probably closer to right than I said at first.

[charlie66]

I thought free flow would be with it right out of the pump with no lines. The first one was only 3 sec slower to fill . I thought that was pretty good after the reg

[Scott65]

It was. I'd say look elsewhere. You didn't offer any info about the packaging of the car. Any chance the dominator is tight on hood clearance? That'll make em do weird stuff.

[charlie66]

so being i only need 75 gph for my hp i think im good . Ill try what you said though. ill see what it pumps in a minute..