Thank you for giving me a bit of your time but here's the deal. Yes 91 is crap. Yes my cold side could be bigger. But when it comes down to it, I still feel like there's more to be had from my setup. Could it be a bad wga? bad bypass valve you think? I guess the only way to know it buy a new one and slap it on.

Again, thank you to everyone who has responded. Please keep them coming as I would really appreciate more opinions as to if I am under powered for my setup.

ps the number are PRE intercooler

 

actually in my opinion those numbers seem correct for a good conservative tune on a mustang dyno, and from what i know GST tunes with protecting your block in mind so rest assured you have a strong solid tune.

also when i hit works's dyna pack with similar mods (cept i had 9.8 hotside) at the time i hit 277hp/300tq

pick up a used 9 turbo and you should be hovering around 300

 

what kind of core does that fmic use? the numbers here are basically 300 dynojet. id expect more then that but then again the gas might suck really bad.. but id expect 330-340 dynojet with your mods. around 300 on that dyno.

there is no such thing as protecting a block if its barely cracking 300whp. no torque control is necessary and you sure don't want a conservative tune when you're that low already in the power department.

the guy must of seen a taper more severe then hes used to seeing.. so i would look at the boost control or wastegate actuator preload.

now is this 20psi across or 20psi and taper? also.. a 3 port is a good mod to do. seeing its a mbc im gonna say its got a 20psi spike then taper off.

theres to many variables though.. the gas might be bad, the fmic might not be efficient enough.. the list just goes on and on. hot temperatures make it hard to make power on low octane fuels.. your fmic is whats going to determine how much you can push it basically. if it has a crappy core then thats your bottleneck / issue.

 

As mentioned above I actually just finished installing the fmic tonight. 267whp was on stock intercooler. Just changed my signature a few minutes ago.

Considering all mods in sig minis fmic is it still really low though? I appreciate the input.

 

its hard to honestly say what it should be doing, because there are to many variables into play.

temperatures / heatsoak
boost..
fuel content..

so this was done on a stock FMIC? that changes quite a bit.. i dont think the numbers are entirely that off if thats the case.. california is not known for having good 91octane fuel.

you really have to keep in mind the numbers will always be a good 12% or more lower then a dynojet when you're on a properly low reading mustang like GST's.

 

these numbers dissapoint me to the point that i want to get rid of my 05 evo and just get a dam 02 zo6... hopefully your compression checks out i should be getting tuned in the next month. so ill put up my numbers too

 

he should be but he isnt

 

I know a guy that made similar numbers probley plus or minus 10whp on that dyno that ran 12.4@108 at sac so its probley not as slow as you think depending on your idea of quick of course.

 

who tuned this again? honestly i wouldnt be expecting alot from your setup, not trying to bash you, but your mod list is pretty shallow

tuning makes a night and day difference my friend

 

this...is clue #1

 

Thank you for your input. I did ride an R1 before switching to the evo so it may be that I am just expecting too much.


No bash taken. And yeah I got tuned by GST in hayward. Mike was cool but I wish he went into more detail about what was happening with my car. He just said "put a 9 turbo on because your 9.8 hotside is holding you back.." (05's have a 10.5)

Yes I am going to get a bbk and e85 in October but I feel like I'm putting a band aid over a bigger problem.
Yes it reaches about 20.5 psi at WOT for may half a second then immediately starts to drop. I'm not excactly sure where it tapers to. I think like 17. But man it only holds max psi for about a second. Maybe that's normal..


Ok so yes I am going to do the turbo swap/e85 tune here in October. Yes I expect that there will be gains. I am just hoping that I am not putting a band aid over a bigger problem.

 

1. Do compression and leak test for the engine and intake pipes.
2. Remove MBC and get a 3 port solenoid.
3. Get a new Evo 9 turbo. Evo 8 turbo isnt any good, especialy with almost 50k miles on it.
4. Change to E-85, because 91 octane isn't any good. For E-85 you will need bigger injectors.

 

smart thinking, yeah i would try to figure it out first, but maybe somethings wrong w/ the turbo... usually most tuners will help you diagnose the problem unless you simply paid for just a dyno pull

either way good luck, maybe its worth taking it to someone ie GST that will diagnose the issue, because even an 8 turbo should hold more than that, i dont have a ton of experience w/ them as i have only owned a 9

 

Yeah that's pretty much what it boils down to. I'm doing the swap & E85 tune here in the next 6 weeks. Yes I have injectors, going to install them with the turbo the day before dyno. I will do compression/leak down and keep you guys posted.

Any more opinions? Is 267 on mustang too low for mods in sig? (besides fmic)

 

did you overlook my post? it's about as much an apples to apples comparison you are going to get.

Same gas, same dyno, same car (Evo8). I had intake, hks 272's, exhaust, and fuel pump/760cc injectors. 30 more hp even though I was on a cat and you are catless.

I was told my car was nothing special from the tuner, average for the mods. I believe that puts your car well below average. Doesn't mean something is wrong with it, but for your question, "are my numbers low" I would say definitely yes.