What the heck, man?
 

So I put on my Cobb FMIC and turbo inlet about 3 weeks ago, and all was well. Took the car to the track, and started feeling this weird thing in 5th gear. Like at about 105 MPH (I don't know the RPMs but whatever 5th @105 is) it would stutter once. Now I can't get pas about 15lbs of boost without it doing the same thing. I've been trying to notice weird fuel pressure readings on my dash hawk or a fluttering boost needle, but I don't see anything weird. Any thoughts? I am sure it is just boost cut or fuel cut, but is there something I can log on my dash hawk to know for sure? it's freaking me out, man!

RPM,boost,AFR,fuel pressure,AbsThrottle

Start with that I guess, its too bad you can't do more than 5 parameters at once...especially since you gotta hit 105 mph to log it, lol

and FYI that's about 5k rpm

Not that Cobb has a bad fmic but why didn't you just keep your ETS top mount and get meth injection?

I will log that stuff on my way to church tonight and post graphs. lol



nah I don't have to hit 105 to do it anymore. As long as boost is above 15psi in 3rd or 4th, it starts happening. it's very frustrating.

I think it's weird that it didn't start happening right away with the new parts. Also, I noticed that my TPS never goes above 70%, and it seems like it's closing when this is happening. not sure though, the logs will tell more, I am sure.

because I wanted the cobb fmic.

fmic is always superior to a tmic,aftermarket or not.

All I've got to say is top mount - 13.5, front mount 13.3

as long as the fmic is properly designed and flows well then screw a tmic.

Meth + ETS is 12.5.

says who?

No one has done that. No one.

meth+fmic=better times.

Cobb definitely did their homework. This thing is the bee's knees.

Until I see proof of that I am skepitcal... I have almost 0 pressure loss with my ets and my boost temps go below abmient. How much better can that get?

um, explain why boost temps would ever be below ambient temps?

Meth injection.

lol so it doesn't have anything to do with the intercooler at this point. The alcohol evaporating has a far more pronounced effect on the air temp than an intercooler could.

lol Exactly! why did you get the fmic?

If you just wanted it I respect that but my point is you had the beutiful 3.5 ets why not just get meth for $250 instaed of $1000 for fmic + the posablity of pressure loss...

Probably because its HIS car and he can do what he wants with it?

ETS + meth FTW........cobb fmic for the ladies. Im stuck i want the fmic for the looks but i want the ETS + meth for the $$ and same result without pressure drop...what to do what to do.

meth doesn't gain anything on the dyno... a local guy dyno'd less running meth than a similarly modded car without. reliability is a different story, but you are not going to gain a second at the track or any hp at the dyno with meth.

Car 1 (not mine)
CPE TBE, CPE intake, Cobb FMIC, Cobb AP, Meth injection, forge bpv

Car 2 (not mine)
TurboXS TBE, Injen CAI, Turbo XS FMIC and bpv

This was on the early Cobb maps, i am sure 103 would do better based on my results with the different maps.... anyways long story short the meth didn't help car 1 pull any better numbers

I don't know where people get this idea that TMIC are better than FMIC. There not. Period.

I'm not saying TMIC suck, they work just fine but all things being equal a FMIC is better.

someone should just run a pipe from the turbo to the throttle body, no intercooler, just meth, hahaha.

wow way offtopic, post up the logs when u can!

If you tune for meth is will make a difference. Nobody here does that and it's not the greatest idea for a DD.

Everyone here runs the meth because it's magically going to stop the engine exploding.

spraying a small amount of meth with no tune u should not lose power. any loss in power will probably be offset by the gain in cooler BATs. spraying tons of meth without tuning for it has definitely shown losses for people...

I use the d03 nozzle and I think it added some powa, maybe just gave me a little more low/mid torque, i dunno. But it definitely didnt slow stuff down. And car seems to run more consistent which I like.

For the OP, any tuning? sure you don't have a lose boost hose?

On some cars yes, on DI i haven't seen the huge gains that meth has allowed on other cars.

Better hope you don't run out if you build your tune around it

the ETS isn't free... i think you are forgetting that in your math

Dump a pile of ice on the TMIC, then it'll match the FMIC for one run...lol.

perfect application:

http://www.evsmpi.net/tbird/TBirdEngine030704.jpg

LOL

That's old school right there.

Anyway, not sure how we got onto the TMIC vs FMIC debate, but back on topic. Did you check your plugs and do the coil spring stretch mod?

give it time. ive had mine since dec.31st and i will say fitment sucks. and before anyone asks yes a i have a rear mm.

look at that turbo inlet pipe!! lol

then you installed it wrong... its a pita, but when done properly it fits just fine

because it's MY car and I do what I want with it!

so true!

I don't think I had any pressure drop... maybe it was so insignificant that I didn't notice...

yeah, mine fits great. no issues whatsoever.


Also, I am having a heck of a time getting my dashhawk to talk to my computer. I am installing and uninstalling every version of the software to figure out what will work. bear with me please.

And no, I haven't done any coil stretching or anything. is there a chance that it could fix the problem?

This stupid thing is not working ANGRYFACE

Bro you are incorect for sure! I dynoed 267whp without meth at 17.5psi and 291.7whp with meth at 19psi on the same dyno, same tune about 80 dgrees out both times. You think I gained 25hp form 1.5psi? More Hp = better track times, how do you think Darksun made all his power on the stock turbo? = meth

I hate to ask the obvious... but are you using the latest version from the DH website? Second, what OS are you running. DH just doesn't want to place nice with x64 versions. Also, people have had issues with Vista and the UAC. On top of all that, however, it seems nothing about the software is consistent. People report success with certain steps, another person mirrors those steps and it just doesn't work. I have Vista x64 and finally resorted to VMWare with an old Win2k CD I have to use my DH.

I'm running XP, and I've finally got it talking to the DH, but it keeps saying that there is not a log on the device... I "updated" the dashhawk, and I'm going to run another log during lunch. Hopefully it will work.