M1 alky with Twin 88s Non intercooled
12-27-2017, 04:18 PM
#21
I personally run E85 M1 and m5 on my car, I can tell you it is night and day when fractions of a second count. I can make the same power and run the same time on M1 as i can on M5 on a good track. My spool time is about 1.7 seconds on M1 and 1.05 on M5, I can feel the difference when I switch back an fourth on the way it pedals.
That being said if you have a car that has a large motor with small turbos or turbos that are at their peak it will have less effect. We have a build that runs two 80s instead of a single 104 and it seems to be much more responsive on both fuels with less of a difference between them on the twin set up.
That being said if you have a car that has a large motor with small turbos or turbos that are at their peak it will have less effect. We have a build that runs two 80s instead of a single 104 and it seems to be much more responsive on both fuels with less of a difference between them on the twin set up.
Ah I see, I definitely am going to try it out! Oh and what were you running for static compression on those engines?
12-29-2017, 03:57 PM
#26
TECH Enthusiast
Have to change the rods more often or have them checked. This season, we're going to have a spare set, and after 40-50hits we're going to change them. Sending the original set in to have them checked/replaced.
12-29-2017, 04:58 PM
#27
Ah I see, just wondering if I can get by going to 12:1 using E85 for the low boost tune.. I know with alcohol it wouldn’t be an issue. This is where 12:1 puts me on Dynamic compression . About 210 psi cylinder pressure Cranking too.
01-03-2018, 09:43 AM
#30
On E you should have no issue at 12:1CR. Run with it!
01-04-2018, 06:28 PM
#32
01-05-2018, 10:13 AM
#33
TECH Enthusiast
I'd put more compression in it than 11:1. Especially with only 88's on it. M1 can make a ton of power and as long as the engine is happy, it'll live a while at that power level.
01-05-2018, 11:49 AM
#35
Just out of curiosity, does a motor intended to run on Methanol need to be built any differently than something that was designed to run on ethanol? I wasn’t sure if it required different ring gaps or preparation lol I have all Billet internals, Diamond Billet Custom Pistons, Callie’s Ultra Billet I beams, and a Billet Sonny Bryant CCW crankshaft , along with a very good Dailey 7 Stage Dry Sump.
04-29-2018, 07:32 AM
#38
I know on a naturally aspirated engine every point of compression is worth roughly 40hp on the dyno
we built a e85 482 small block back in 06
it was 962 hp at about 7700rpm
was calculated 12.26:1 compression
left the short block on the dyno and killed the heads down to get 13.18 compression
made 1004hp at 7600RPM
customer was happy to see 4 digits and we got some decent info for future builds
not sure what it would do with boost but when I'm messing around in the machine shop I'll try some stuff
we built a e85 482 small block back in 06
it was 962 hp at about 7700rpm
was calculated 12.26:1 compression
left the short block on the dyno and killed the heads down to get 13.18 compression
made 1004hp at 7600RPM
customer was happy to see 4 digits and we got some decent info for future builds
not sure what it would do with boost but when I'm messing around in the machine shop I'll try some stuff
05-04-2018, 12:40 PM
#40
Launching!
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