Happy with E85 not 93

[JANNETTYRACING]

Originally Posted by RobZL1

I'm with you. It should have made more with 17% overdrive. Heat and cylinder pressures should not have been a concern at that level.

When my car had intake, headers, id850s, JMS bap, and 28% overdrive it put down 630 SAE on a dynojet.

Maybe air in your intercooler loop since you had the brick out. I don't see a reservoir listed in your mods, and it's hard to bleed these things properly without one. Iat2 would go up, and hurt you on 93, but you could get away with throwing timing at it with ethanol.

Very easy to bleed with this tool https://jannettyracing.com/products/...cadillac-cts-v

[Ds98formula]

Originally Posted by JANNETTYRACING

Very easy to bleed with this tool https://jannettyracing.com/products/...cadillac-cts-v

That’s neat. I think mine is good but I may want to take my blower off to have it ported at some point. How do you use this tool?

[JANNETTYRACING]

Originally Posted by Ds98formula

That’s neat. I think mine is good but I may want to take my blower off to have it ported at some point. How do you use this tool?

plug it in, fill it up, let it run until no more bubbles.

Ted

[Ds98formula]

Originally Posted by JANNETTYRACING

plug it in, fill it up, let it run until no more bubbles.

Ted

Nice. I will have to get one.

[Mmcmon]

Originally Posted by RobZL1

14 degrees of advance is way too low for his mods.

How much boost is he making?
He should start low and work his way up. Better than starting high and working down

[Mmcmon]

Originally Posted by Ds98formula

Long thread bear with me lol. So first off this is not a bash thread. However I am not happy with my numbers on 93 octane and would like some opinions.

Car started off CIA intake,Kooks headers with high flow cats, Borla Atak and dyno tune. Car made 567whp/541 tq



Fast forward two years and I wanted more. Had the following installed

2.55 pulley
ID1050 injectors
Aux pump
Flex fuel sensor
Ic brick reinforced
Tuned at the same shop for both 93 octane and e85

So here is where I am not happy. My number on 93 with pulley were better than with out pulley under 5200 rpms. After that they where worse. I was expecting to pick up at least 35 whp up top.

Below is graph of 93 tune pulley vs no pulley. Blue line is after pulley. This was done by same tuner and same dyno. I was told by the shop that they had to dial timing back due to the extra boost. Now I know that happens but shouldn’t I still make more power up top with more boost? I just picked it up last night and it had a full tank of E85 and runs amazing on the E85 so I have not actually drove it on the 93 tune.




Below is my E85 graph witch I am happy with.



I am very happy with how the E85 performs. I have a dragy and before I dropped it off I did some test 40-100 all third gear,60-100 all third gear, 60-120 3rd and 4th gear and 60-130 2-4th gear.

My best 60-100 pre E85 was 4.32 my first two after were 3.81 and 3.85 pretty good drop in time for such a small window. So I know that tune is putting down power. I will get my 60-130 time either today or tomorrow to compare those.

I am hopefully that the 93 tune still performs good I am just a little worried about them seeming to be ok that I pulled down and lost power on 93. Like I said not a bash thread just looking for opinions

The second chart shows the blue run a/f is getting richer exactly when your HP dips. Lean it up in that area.

[RobZL1]

Originally Posted by Mmcmon

How much boost is he making?
He should start low and work his way up. Better than starting high and working down

With his mods in IL, I'm guessing around 13-14psi. I agree better to go up than down, but if at 14 psi or so, the car should want more than 14 degrees on 93. I guess it doesn't really matter, as he's not doing the tuning.

Originally Posted by Mmcmon

The second chart shows the blue run a/f is getting richer exactly when your HP dips. Lean it up in that area.

Looks like maybe 11.7 vs 12.0. That small AFR delta shouldn't account for the missing 40 or so hp. If it was like 10.5 vs 12.0, then yeah, probably something to look at.

Just odd overall. Cars with the 2.5 upper and these mods should be around 600 or a little more.

[Ds98formula]

Making 13psi. I have my tank half empty so I should be able to fill up with 93 soon and test the performance against my old dragy numbers.

[Ds98formula]

Originally Posted by RobZL1

With his mods in IL, I'm guessing around 13-14psi. I agree better to go up than down, but if at 14 psi or so, the car should want more than 14 degrees on 93. I guess it doesn't really matter, as he's not doing the tuning.



Looks like maybe 11.7 vs 12.0. That small AFR delta shouldn't account for the missing 40 or so hp. If it was like 10.5 vs 12.0, then yeah, probably something to look at.

Just odd overall. Cars with the 2.5 upper and these mods should be around 600 or a little more.

Around how much timing on 93 do you think it may want? I was out burning some E85 today trying to use it all so I can fill up with 93. I have 25 degrees on the E85 tune.

[RobZL1]

Originally Posted by Ds98formula

Around how much timing on 93 do you think it may want? I was out burning some E85 today trying to use it all so I can fill up with 93. I have 25 degrees on the E85 tune.

Of course every car is different, but I would estimate somewhere in the 17-19 degree range.

[Ds98formula]

Originally Posted by RobZL1

Of course every car is different, but I would estimate somewhere in the 17-19 degree range.

Sweet thanks. I will keep an eye on that for the 93 tune as well.

Looks like rain on top of my 16hr work days I may not get to it for a few days. I appreciate all the info

[Triple5even813]

When we switched my car from 93 to E85, we made sure the tune was 100% squared away and the car was happy on 93, then made all of the E85 adjustments in the alcohol adder table. We did it in steps, street tuning and e-mailing back and forth. We started with about 40%, then bumped it up to 55-60%, then 75%. 75% is about the best I can get out of the pumps in my area, and it's enough to get the full benefits. The car picked up an estimated 50-75whp over 93oct when we were finally able to get it on a dyno some months later.

Current 60-130 PB is 6.9, starting in 3rd gear. This was over 2 years ago and about 75whp less than the current setup. It was also with full interior, stock suspension, 20" wheels w/ street tires. I'm thinking it should do 6.5 or better now.

[Ds98formula]

Originally Posted by Triple5even813

When we switched my car from 93 to E85, we made sure the tune was 100% squared away and the car was happy on 93, then made all of the E85 adjustments in the alcohol adder table. We did it in steps, street tuning and e-mailing back and forth. We started with about 40%, then bumped it up to 55-60%, then 75%. 75% is about the best I can get out of the pumps in my area, and it's enough to get the full benefits. The car picked up an estimated 50-75whp over 93oct when we were finally able to get it on a dyno some months later.

Current 60-130 PB is 6.9, starting in 3rd gear. This was over 2 years ago and about 75whp less than the current setup. It was also with full interior, stock suspension, 20" wheels w/ street tires. I'm thinking it should do 6.5 or better now.

Nice time what where the mods for the 3.9 60-130?

[Ds98formula]

So I was able to fill up with 93 this morning. I was only able to get one 60-130 run in and two 60-100 runs.........All where slower than before I had the pulley put on. Something has to be wrong with this 93 tune. And if there is a problem with the 93 tune i have to question the E85 tune. While the E85 tune performs well, how do I know it should not be better.

below is my best and worst 60-130 before the pulley was installed. one is with two shifts one is with just one shift









And now after the pulley install



At some point I am going to try it a few more times and do it with just 3rd and 4th gear to rule out shifting.

I will also do a few pulls and log iat temps and timing.

iat temps never got high on the e85 tune so i doubt that will be the problem but timing might.