drag chevette
07-18-2009, 02:58 AM
im glad to be a part of this....
Quote:
Originally Posted by GOSFAST
Just got some feedback today from a friend at a local Northeast track with one of our units running on the "E-85". This is the very first one we've become involved with and it looks like it may be the beginning of some very substantial HP/Torque numbers down the road on a relatively new budget-type fuel, as long as it's available at least!
The weather was extremely hot there today and very humid! Overall running engine temps are down some 20* on average from running race-fuel!
It's a "blown" BB and is "seeing" about a 17.2:1 C.R. with some 16# boost, based on an 8.25:1 "static" C.R.
They were going to make some pulley changes and attempt to get up to 18:1+ with the timing at 37*/38*. This entire weekend will be devoted to getting input from the first outing with this "E-85" fuel. From inital reports it seems as though C.R.'s will end up in the "stratosphere" somewhere!
I would imagine in much cooler weather the gains MAY be even more substantial! This "ride" is still being tuned/dialed-in!
My customer did say he believes this fuel will remain "stable" at 20:1, this is still a hunch howvever this evening. More "testing" scheduled for tomorrow, Saturday!
(Add) The "fill-up" came to $58.00 for 28 gallons of fuel! Some in the tank and some extra in a jug!
Thanks, Gary in N.Y.
P.S. Each pass uses 1.5 gal's fuel (including the burnout), costing a total of $3.15 per pass. In the past, before the "changeover" from the race-fuel, this would have been a $10.00+ run. (This $10.00 figure is "guesstimated"!)
Hey Gary,
How about a plug for the carb builder?....????.... ...ME!...lol
I talked to Glenn today a few times, We decided to leave the jetting alone and to drop the HSAB (high speed air bleed) size to make it pull a little richer up top.
Though the .81 lambda was probibly a safe number.....I would like to see the chart hit and stay around the .77 lambda mark.....
did he ever find any bleeds?.......???
... when you get away from that 90+ degree temp and cut with a knife humidity it should really fly.....cant wait til november.
congrats on your machine work and build.
and keep me posted as to where he ends up in the field....
3800# car running well into the 8s, that fast and impressive.
Mark Sullens ~ E85 Carburetor Conversions....AKA Drag Chevette
573 694-4088
Quote:
Originally Posted by GOSFAST
Just got some feedback today from a friend at a local Northeast track with one of our units running on the "E-85". This is the very first one we've become involved with and it looks like it may be the beginning of some very substantial HP/Torque numbers down the road on a relatively new budget-type fuel, as long as it's available at least!
The weather was extremely hot there today and very humid! Overall running engine temps are down some 20* on average from running race-fuel!
It's a "blown" BB and is "seeing" about a 17.2:1 C.R. with some 16# boost, based on an 8.25:1 "static" C.R.
They were going to make some pulley changes and attempt to get up to 18:1+ with the timing at 37*/38*. This entire weekend will be devoted to getting input from the first outing with this "E-85" fuel. From inital reports it seems as though C.R.'s will end up in the "stratosphere" somewhere!
I would imagine in much cooler weather the gains MAY be even more substantial! This "ride" is still being tuned/dialed-in!
My customer did say he believes this fuel will remain "stable" at 20:1, this is still a hunch howvever this evening. More "testing" scheduled for tomorrow, Saturday!
(Add) The "fill-up" came to $58.00 for 28 gallons of fuel! Some in the tank and some extra in a jug!
Thanks, Gary in N.Y.
P.S. Each pass uses 1.5 gal's fuel (including the burnout), costing a total of $3.15 per pass. In the past, before the "changeover" from the race-fuel, this would have been a $10.00+ run. (This $10.00 figure is "guesstimated"!)
Hey Gary,
How about a plug for the carb builder?....????.... ...ME!...lol
I talked to Glenn today a few times, We decided to leave the jetting alone and to drop the HSAB (high speed air bleed) size to make it pull a little richer up top.
Though the .81 lambda was probibly a safe number.....I would like to see the chart hit and stay around the .77 lambda mark.....
did he ever find any bleeds?.......???
... when you get away from that 90+ degree temp and cut with a knife humidity it should really fly.....cant wait til november.
congrats on your machine work and build.
and keep me posted as to where he ends up in the field....
3800# car running well into the 8s, that fast and impressive.
Mark Sullens ~ E85 Carburetor Conversions....AKA Drag Chevette
573 694-4088