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Max power without port injection

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Old Aug 26, 2021 | 09:01 AM
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Default Max power without port injection
Hey guys,

wanted to ask what the highest power you guys made without port injection, i know 1000-1100 is achieveable with methanol. Is possible to go even more? 1200-1300 with stock lt4 high side and methanol?
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Old Aug 26, 2021 | 12:40 PM
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I’ve sprayed 50 gph of meth… so with enough meth you can make that much
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Old Aug 26, 2021 | 02:09 PM
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I made like 1150 on c16 and 30 gph. That was as far as I wanted to go. I then added port and did full e85 and made the same power on less boost.
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Old Aug 27, 2021 | 06:15 AM
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Originally Posted by T/A KID
I’ve sprayed 50 gph of meth… so with enough meth you can make that much

what fuel did you use and how much power did it make? And how much boost?
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Old Aug 27, 2021 | 06:17 AM
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Originally Posted by C7&7
I made like 1150 on c16 and 30 gph. That was as far as I wanted to go. I then added port and did full e85 and made the same power on less boost.

i know 1150 is achieve able with fuel, as im at around on pump gas and 30gph so im thinking what my limits will be with fuel
Last edited by black_c7; Aug 30, 2021 at 09:38 AM.
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Old Aug 30, 2021 | 09:33 AM
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Originally Posted by black_c7
i know 1150 is achieve able with fuel, as im at around 1000-1100 on pump gas and 30gph so im thinking what my limits will be with fuel
1000 on pump gas and meth is on the edge as far as I am concerned. On c16 you probably have another 50-75 hp on the table. Port injection and going to e85 would be your best approach. You could turn things down and make the same power and not need any methanol.
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Old Sep 2, 2021 | 04:26 AM
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In trying to not go with the port injection for now as my low side wouldn’t cover the fuel needed to go ethanol and port injection.
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Old Sep 4, 2021 | 09:46 PM
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Originally Posted by black_c7
what fuel did you use and how much power did it make? And how much boost?
93/meth
c16 on race days…

f1x at 23psi, never put it on the dyno, but at the track trapped with a manual trapped 157mph
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Old Sep 5, 2021 | 03:50 AM
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Originally Posted by T/A KID
93/meth
c16 on race days…

f1x at 23psi, never put it on the dyno, but at the track trapped with a manual trapped 157mph

nice that moving for sure what the et on that run if you dont mind? And ever used dragy 60-130?
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Old Sep 5, 2021 | 11:31 AM
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Originally Posted by black_c7
nice that moving for sure what the et on that run if you dont mind? And ever used dragy 60-130?
I don’t recall the 1/4 time… but wasn’t as impressive Trap speed. Never done draggy as far as I know.. but I bet be close to 3.8-4.0
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Old Sep 5, 2021 | 10:33 PM
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Originally Posted by black_c7
nice that moving for sure what the et on that run if you dont mind? And ever used dragy 60-130?
Man that is moving thur the 1/4 at 157 I only got 159 with a RHS 427 with the F1X in the c5. But it was a auto trans the f1x just keeps on pulling thur the 1/4 mile. 60 ft was 1.27

This c7 I hope will get into the 140 in the 1/4 mile I will find out this next weekend should have the car back late wed night. I will see what she does at a track here but it is only 1/8.. Robert
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Old Sep 5, 2021 | 11:13 PM
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Originally Posted by robert miller
Man that is moving thur the 1/4 at 157 I only got 159 with a RHS 427 with the F1X in the c5. But it was a auto trans the f1x just keeps on pulling thur the 1/4 mile. 60 ft was 1.27

This c7 I hope will get into the 140 in the 1/4 mile I will find out this next weekend should have the car back late wed night. I will see what she does at a track here but it is only 1/8.. Robert
No worries Robert on your setup for trapping in the 140’s even in warm weather.
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Old Sep 10, 2021 | 03:19 PM
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Originally Posted by 123sugey
No worries Robert on your setup for trapping in the 140’s even in warm weather.
I was thinking that will push it in my mind but I am not one to just think big on something. I was thinking around 135 maybe 138 maybe. Well my car still not doing good got it on the rollers 4500 rpm is it & falling on its face after that the tuner saying belt slip. it did do 673 rwhp at 4500 cant wait to see at a good WOT.... Robert
Last edited by robert miller; Sep 10, 2021 at 10:11 PM.
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