does e85 make more power vs 91? same tune. also 60# vs 80# data
Thread Starter
On The Tree
Joined: Aug 2014
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does e85 make more power vs 91? same tune. also 60# vs 80# data 98 ws6 5.3 turbo t76
First question is e85 conversion.
I decided to switch to e85 last night. just after the switch.(the only thing changed on hptuner was stoich ive notice 2 things.
1. the car cuts off right away when i let off throttle.
2. it seems to pull harder or e85?
the first i dont mind or care.
but the second surprised me. i didnt expect it to pull harder(it was at night-so its not like it was on a hot day where i would expect it) it feels like it made more power. I wanted to switch so I can raise the boost to 20psi. so this was not expected at all so i dont think its a placebo effect
is it possible that the car makes more power with just a simply switch?
I know i will still need to fine tune it(lots of area of rich spots) so theres deffinitely more room.
has anyone experience this or can explain this to me.
i would think with the same tune it wouldnt make a difference.
also im currently using deka 60# injectors. the tune on the car is pretty good.
but im out of injectors and would like to switch to 80#
since everything is calibrated for 60# already. would it be possible to do the following:
1. simply multiply the flow rate by 1.33
2. keep the injector offset vs volts ,sort pulse adder, min pulsewidth since its the same brand-i figure it acts similar?
i do not have an adjustable regulator and really dont have to have to pay a few hundred for a retune /calibration.
im starting to get comfortable with tuning but calibration of the injector im just not understanding right now.
First question is e85 conversion.
I decided to switch to e85 last night. just after the switch.(the only thing changed on hptuner was stoich ive notice 2 things.
1. the car cuts off right away when i let off throttle.
2. it seems to pull harder or e85?
the first i dont mind or care.
but the second surprised me. i didnt expect it to pull harder(it was at night-so its not like it was on a hot day where i would expect it) it feels like it made more power. I wanted to switch so I can raise the boost to 20psi. so this was not expected at all so i dont think its a placebo effect
is it possible that the car makes more power with just a simply switch?
I know i will still need to fine tune it(lots of area of rich spots) so theres deffinitely more room.
has anyone experience this or can explain this to me.
i would think with the same tune it wouldnt make a difference.
also im currently using deka 60# injectors. the tune on the car is pretty good.
but im out of injectors and would like to switch to 80#
since everything is calibrated for 60# already. would it be possible to do the following:
1. simply multiply the flow rate by 1.33
2. keep the injector offset vs volts ,sort pulse adder, min pulsewidth since its the same brand-i figure it acts similar?
i do not have an adjustable regulator and really dont have to have to pay a few hundred for a retune /calibration.
im starting to get comfortable with tuning but calibration of the injector im just not understanding right now.
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From: Joliet,IL and Las Vegas 50/50
If you are planning on pushing 20#'s you are going to need much larger injectors. The ID1300's are a full stainless internal and are great with e85. As for the power thing, I'm not sure. E85 affords a higher ceiling for both timing and boost than 93oct could. I'd think you wouldn't notice much of a difference without adding timing and boost but who knows.
Thread Starter
On The Tree
Joined: Aug 2014
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If you are planning on pushing 20#'s you are going to need much larger injectors. The ID1300's are a full stainless internal and are great with e85. As for the power thing, I'm not sure. E85 affords a higher ceiling for both timing and boost than 93oct could. I'd think you wouldn't notice much of a difference without adding timing and boost but who knows.
ya thats what i thought to and I was not expecting it. The only thing i can think of is that my timing/tune favors the e85 more than 91.
and wow those injectors are pricey.
deka 80# are e85 compatible last I check and budget friendly.
im for sure upgrading the injector to raise the boost but was curious about the injector data. if its something I scale or do i have to find the actual data
TECH Apprentice
Joined: Jan 2014
Posts: 362
Likes: 1
From: Torrance Ca
thanks for the reply
ya thats what i thought to and I was not expecting it. The only thing i can think of is that my timing/tune favors the e85 more than 91.
and wow those injectors are pricey.
deka 80# are e85 compatible last I check and budget friendly.
im for sure upgrading the injector to raise the boost but was curious about the injector data. if its something I scale or do i have to find the actual data
ya thats what i thought to and I was not expecting it. The only thing i can think of is that my timing/tune favors the e85 more than 91.
and wow those injectors are pricey.
deka 80# are e85 compatible last I check and budget friendly.
im for sure upgrading the injector to raise the boost but was curious about the injector data. if its something I scale or do i have to find the actual data
Thread Starter
On The Tree
Joined: Aug 2014
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I dont think I will even push it that far though. im only looking for around 550-600whp. I think ill get that at around 17-18?
