Author Topic: e85 tune from trifecta (Read 26014 times)

2.0 tspeed · « **on:** March 25, 2011, 06:07:20 PM »

well vince has been releasing his e85 tune on the cobalt forums already and members are seeing huge gains
its pretty much is working on most cars but some just arn't excepting it. seems to be based on the car itself. the people who are having trouble have tons of mods on there cars. the ones that are running perfect are stock, or just have a donwpipe.
ive been asked to be the test dummy for the 07 because a 07 ecu has not been tested yet. i will be doing this on the dyno. i am aiming for next saturday. vince seems to be very tied up with the e85 file.
you can read more here its about 28 pages long at the moment, somewhere in the middle is when he cracked the code.
http://www.cobaltss.net/forums/2-0l-lnf-performance-tech-153/may-have-solved-100%25-e85-lnf-puzzle-243822/

heres a sample from one member
91 octane

Full E85

I will try and get some 60-100 times soon.

I'm still going to be sending Vince some more logs as soon as I fill up again.

SKY888 · « **Reply #1 on:** March 25, 2011, 06:16:23 PM »

HPT can now tune E85......

Arabas · « **Reply #2 on:** March 25, 2011, 06:34:02 PM »

fair competition is good for all of us spenders!
i have to admit every good tuner for his work.
Vince (i have been running his tune on my car) should get credit for a batch of novelties, like the first to unlock the fuel tables, remote tunning, great tuning and logging inrterface including a code scanner, select-a-tune etc.

of course a lot of other tuners out there, should get credit for their novelties!

keep us updated slowsol for your e85 tune!

snaponbob · « **Reply #3 on:** March 25, 2011, 09:03:45 PM »

Quote from: slowsol on March 25, 2011, 06:07:20 PM

well vince has been releasing his e85 tune on the cobalt forums already and members are seeing huge gains
its pretty much is working on most cars but some just arn't excepting it. seems to be based on the car itself. the people who are having trouble have tons of mods on there cars. the ones that are running perfect are stock, or just have a donwpipe.
ive been asked to be the test dummy for the 07 because a 07 ecu has not been tested yet. i will be doing this on the dyno. i am aiming for next saturday. vince seems to be very tied up with the e85 file.
you can read more here its about 28 pages long at the moment, somewhere in the middle is when he cracked the code.
http://www.cobaltss.net/forums/2-0l-lnf-performance-tech-153/may-have-solved-100%25-e85-lnf-puzzle-243822/

heres a sample from one member
91 octane
(Image removed from quote.)

Full E85
(Image removed from quote.)

I will try and get some 60-100 times soon.

I'm still going to be sending Vince some more logs as soon as I fill up again.

Per Vince (yesterday on the phone) he said to expect about 15 whp less for the roadster than the FWD cars. Still ... BIG numbers. He cautioned me about limp mode due to fuel rail pressure drop (more likely on the roadster), so a bigger pump may be needed. Didn't somebody say that DDM has a pump?

Vanguard · « **Reply #4 on:** March 25, 2011, 09:08:35 PM »

Maybe now you'll be able to give those Evos something to sweat about, Bob!

SKY888 · « **Reply #5 on:** March 25, 2011, 09:37:15 PM »

Quote from: snaponbob on March 25, 2011, 09:03:45 PM

Per Vince (yesterday on the phone) he said to expect about 15 whp less for the roadster than the FWD cars. Still ... BIG numbers. He cautioned me about limp mode due to fuel rail pressure drop (more likely on the roadster), so a bigger pump may be needed. Didn't somebody say that DDM has a pump?

yup DDM has walbro 255lph LPFP.

Been using it since last year

snaponbob · « **Reply #6 on:** March 25, 2011, 09:42:25 PM »

Certainly not until fuel rail "limp" issues are satisfied. Lyndon has done a tweak for 100 octane as well. If there are no rail pressure issues it could get interesting. Subtracting about 15whp (per Vince) for the differences in the Kappa platform, that is STILL crazy. It's about a 25% whp increase. Vince's trace on his HHR did not exhibit the big fall off of the torque, either. Time will tell, but it looks good. Too bad that there is no ethanol in Canada.

BTW - STILL hate ethanol (as it is currently produced in the US) as a road fuel, but it sure kicks ass for power. Are you aware that every time you drink milk, eat bread/pork/beef/bird, or damn near anything else YOU ARE PAYING FOR ETHANOL. Here is something weird - at the C-store near me where I may be buying E85, they also sell 20 and E30. And THOSE two are no more than a dime less than 87 octane gas. American consumers just do not know how comprehensively they are being screwed. And Indy Car and NASCAR are promoting this crap.

snaponbob · « **Reply #7 on:** March 25, 2011, 09:42:51 PM »

Quote from: SKY888 on March 25, 2011, 09:37:15 PM

yup DDM has walbro 255lph LPFP.

Been using it since last year

How much?

snaponbob · « **Reply #8 on:** March 25, 2011, 09:44:16 PM »

Quote from: Vanguard on March 25, 2011, 09:08:35 PM

Maybe now you'll be able to give those Evos something to sweat about, Bob!

STILL have to DRIVE the thing, and MUST have no rain. I was in the trophies on day one and quickest RWD in class, but that all came undone in the swimming pool on day two.

SKY888 · « **Reply #9 on:** March 25, 2011, 09:45:07 PM »

pls talk to DDM Dave about the price

I know they also run a core exchange program on these items ....

Vanguard · « **Reply #10 on:** March 26, 2011, 05:07:30 PM »

Quote from: snaponbob on March 25, 2011, 09:44:16 PM

STILL have to DRIVE the thing, and MUST have no rain. I was in the trophies on day one and quickest RWD in class, but that all came undone in the swimming pool on day two.

So put in a letter to the board requesting a change of location to El Toro

snaponbob · « **Reply #11 on:** March 26, 2011, 06:01:41 PM »

Quote from: Vanguard on March 26, 2011, 05:07:30 PM

So put in a letter to the board requesting a change of location to El Toro

Wouldn't the East Coast guys love THAT !!!!!!!!!!!!

kennysabarese · « **Reply #12 on:** March 27, 2011, 08:58:38 AM »

AFAIK on the Cobalt thread they are still working out of the low pressure pump is the problem. Vince is actively posting there.

rlhammon · « **Reply #13 on:** April 26, 2011, 02:21:15 PM »

I know I don't post here much, but I've been following the E85 stuff closely. I'm not sure if slowsol ever did the tune or not, because last conversation with Vince last week sounded like I'd still be the first Kappa to do this.

Anyway.. it's been the HPFP that seems to be the issue, not the LPFP.

Also, Bob, if you have access to E20 / E30 or are willing to mix fuel on your own, something south of E85 seems to solve everyone's issues.. but those with issues have non-stock turbo's mainly or a large number of modifications.

I should be testing this out (E85) shortly, and hope to get some dyno's in comparison (91octane stock/trifecta and a E85 Trifecta).

Arabas · « **Reply #14 on:** April 26, 2011, 03:15:27 PM »

if i understand correctly, e85 is a lower quality fuel and the only reason for someone to prefer this to normal gas, is cost, correct?
i don't mean to be a jerk, but why would anyone like to try this kind of fuel for a sports car?
wouldn't it be a much more good option to get a city car with low fuel consumption and maybe even convert it to run e85 and keep the kappa as a pure sports car?

JoshMcMadMac · « **Reply #15 on:** April 26, 2011, 03:55:47 PM »

Quote from: Arabas on April 26, 2011, 03:15:27 PM

if i understand correctly, e85 is a lower quality fuel and the only reason for someone to prefer this to normal gas, is cost, correct?

No, it is much higher octane, 100+ as opposed to the highest 93 octane we can get with gasoline.

Arabas · « **Reply #16 on:** April 26, 2011, 04:22:48 PM »

thx for the info JMMM...
i based my assumption on this article
http://en.wikipedia.org/wiki/E85

where it says it has less power potential than gasoline...

Kelu · « **Reply #17 on:** April 26, 2011, 04:27:12 PM »

Arabas: if you use more E85 you will match gasoline potential, right?
Because Ethanol is 106 octane (iirc) you can gain horses by advance the timing.
Ethanol is something like race gas but you have to inject more to match the power obtained by gasoline.

scoobyless · « **Reply #18 on:** April 26, 2011, 04:31:45 PM »

E85 is a higher octane but has less energy when compared to an equal volume of standard gasoline, this is why it requires more e85 fuel to make the same amount of power as standard gasoline.

Arabas · « **Reply #19 on:** April 26, 2011, 04:33:12 PM »

OK! crystal clear now!
higher octane, advancing the timing, more power, fuel pump is inadequate, now it all makes sense for me.
thx!
looking forward to seeing the results from Vince's tune with e85.
the more options the better for us enthusiasts!!

rlhammon · « **Reply #20 on:** May 02, 2011, 12:32:38 PM »

I'll chime in here... have been running E85 in the GXP now for a week and have a fewruns on an autocross course as well.

I *LOVE* it. Wow... power, power, power, and torque that breaks loose my Hoosiers.

I should be getting some dyno plots in a week or so to compare the GMPP tune, my old gasoline Trifecta tune (25 psi), and the new E85 Trifecta tune.

Kelu · « **Reply #21 on:** May 02, 2011, 12:41:15 PM »

That would be an interesting compare

Thanks for sharing

POS VETT · « **Reply #22 on:** May 02, 2011, 03:26:41 PM »

If I want to run E85 with the stock turbo, injectors, fuel pumps and with proper tuning, what kind of power/torque can I expect ? Would 350 ft-lbs at the wheels be too much ?

Kelu · « **Reply #23 on:** May 02, 2011, 03:36:05 PM »

As much as more timing can be gained, I would guess 15-35hp

Ames Performance Tuning · « **Reply #24 on:** May 02, 2011, 09:45:14 PM »

30whp is what I have heard. I did not hear about an TQ increase. Hopefully, I will get to the track or a Dyno soon to find out. My seat of the pants meter definitely feels the increase in power with the Trifecta E85 vs 93 octane Trifecta tune. The E85 price per gallon is $3.39 in KS vs $4.05. The E85 tune still get 26 mpg.

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Author Topic: e85 tune from trifecta (Read 26014 times)