2013 GSR, Boostin Performance tuned. Baseline to MHI 18k
Thanks. Definitely have some questions for them based on that. Doesn't specify fuel used but have to assume it's the same ACN91. Also they are getting more boost than I did when they did my baseline - my stock turbo peaked at ~19psi. Looks like they did the run more than 2 years ago and it's the only baseline tune for the GSR they have in the database (no other years show a baseline from what I can find).
Thanks, now I'm going to have to get all angry customer with them the next time I run by to chat.
I stand by my initial concern about the tq curve for OP even if Cobb is revealed to be a shady dyno tuner. 4300rpm is too laggy for this turbo unless he's running a stock or poor quality O2 housing and it just can't exhale properly.
Thanks, now I'm going to have to get all angry customer with them the next time I run by to chat.
I stand by my initial concern about the tq curve for OP even if Cobb is revealed to be a shady dyno tuner. 4300rpm is too laggy for this turbo unless he's running a stock or poor quality O2 housing and it just can't exhale properly.
I wonder if this is the issue. Are you concerned about emissions? Have you considered going straight TP?
I'm concerned about emissions here in IL and more importantly, it's my DD and I drive my 3 boys around in it. I'm not interested in smelling gas in the car or the other issues just to squeeze a few more HPs.
I know....hopefully not too many though
By the way, just an interesting tidbit about Cobb SoCals dyno
See BakaUnchi's post halfway down stating that their dyno reads like a dynojet
http://www.evoxforums.com/forums/sho...tage+dyno+test
By the way, just an interesting tidbit about Cobb SoCals dyno
See BakaUnchi's post halfway down stating that their dyno reads like a dynojet
http://www.evoxforums.com/forums/sho...tage+dyno+test
Last edited by Prosdoc; Jun 18, 2015 at 02:55 PM.
Right and then he said all Cobb dynos do the same thing - read like dynojets - and then was proven wrong.
I don't know man. I feel like the dyno market is becoming like WebMD - apparently no matter where you go or what you do, you will always end up with a bs, pointless, fatal final number according to someone.
I don't know man. I feel like the dyno market is becoming like WebMD - apparently no matter where you go or what you do, you will always end up with a bs, pointless, fatal final number according to someone.
Right and then he said all Cobb dynos do the same thing - read like dynojets - and then was proven wrong.
I don't know man. I feel like the dyno market is becoming like WebMD - apparently no matter where you go or what you do, you will always end up with a bs, pointless, fatal final number according to someone.
I don't know man. I feel like the dyno market is becoming like WebMD - apparently no matter where you go or what you do, you will always end up with a bs, pointless, fatal final number according to someone.
Got the Evo back today. Car feels much stronger with the E85 tune compared to the 93. Traffic was really bad but the few times I was able to go WOT, it felt really good. Catch point on new Competition stage 3 clutch is pretty different from stock so that will take a little getting used to. Here's the Dyno (keep in mind that the E85 I brought was tested to be E70, and was mixed with some E98 for a net of E78)
389whp/352wtrq, for an net gain of 37whp/26wtrq over the 93 tune
389whp/352wtrq, for an net gain of 37whp/26wtrq over the 93 tune
Last edited by Prosdoc; Jun 19, 2015 at 04:57 PM.
Evolving Member
Joined: Mar 2006
Posts: 246
Likes: 1
From: rockford, il
Man, I was hoping you would pick up more. Considering just the 3 psi increase in boost is accounting for some of that 37/26 increase, it doesn't seem like just the fuel swap got you a lot. I've read (dangerous, I know) that on a stockish turbo each psi can translate into ~7hp. As others said, perhaps the HFC is holding you back. And as long as it feels good to you that is all that matters! I'm not doubting BP, as they have an awesome team, was just thinking E85 would be in the 50+ hp/tq increase range.
I'm looking at that clutch when mine needs replacing. We should meet up sometime. I'll be in the area all day June 29th.
I'm looking at that clutch when mine needs replacing. We should meet up sometime. I'll be in the area all day June 29th.
I'm waiting on the overlay dynograph comparing E85 and 93. My guess is that while the peak numbers have "only" changed 37/26, the total area under the curve is where the real change happens. I'll PM you about June 29
Newbie
Joined: Oct 2013
Posts: 91
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From: Birmingham, AL
I think that the HFC might be making a significant difference. But like what others said, every dyno is different. How is the Comp stg 3 holding up with the MHI? I have the that clutch and awaiting my MHI install and curious how it's all feeling together. Thanks!
It seems great so far, really no issues. No issues whatsoever handling the power. The main difference is that he catch point is much lower towards the floor and it seems to need a bit more throttle input. I'm used to the stocker having a much higher catch point so if I let off now without enough throttle, the car will shake a bit. I have to retrain my feet
Newbie
Joined: Oct 2013
Posts: 91
Likes: 0
From: Birmingham, AL
It seems great so far, really no issues. No issues whatsoever handling the power. The main difference is that he catch point is much lower towards the floor and it seems to need a bit more throttle input. I'm used to the stocker having a much higher catch point so if I let off now without enough throttle, the car will shake a bit. I have to retrain my feet
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