ahhh, im sad. what could it be? bent valves? clutch?

errrrr. my boost psi is between 3 and 5. my a/f ratio between 11.9 and 12.2

 

IMRC not working.

Post a video of it running...do some revs...so we can hear and see.

 

wow thats ridiculous

 

IIRC, IMRC should be unplugged w/ FI.

and wow, that dyno sucks.

 

i unplugged the imrc and it put down 216whp

i have stock headers, greddy mx exhaust

WTF i want to shoot myself

 

Hopefully you figure something out because thats alot of money and work wasted to get little performance upgrade.. Wait for the supercharger guru's to come around and help ya out

 

eewwwww

 

with the 3 lb boost pulley, plugging in the IMRC is goiung to give you better results, i believe for 6 lbs or 9 lbs you need to unplug the IMRC to prevent detonation. And your fuel is supposed to be ideally at 14 psi if i am correct. Was it tuned or adjusted? Did you buy it used? Maybe the problem is as simple as a modified FPR or EGR valve. Post more details about the whole situation.

Does the car feel any stronger? How do you know the Dyno is correct, was there a baseline for the car dyno before the SC?

 

Are you using 87 =]

 

the car does feel faster. but the dyno does not say so. the clutch will not catch next gear if i shift very quickly, id have to let it grab b4 i can get back on it.

the one thing i wonder is if my valves r bent. a few months back i misshifted 3 to 2 and watched the needle bounce off 9k rpm. the car still ran afterwards, but few weeks later i would get a misfire code for all cylinders here and there but that would clear itself.

i have a mechanical fuel pressure gauge, but i have never installed one b4, so i am still trying to figure it out.

my a/f ratio is good. boost psi is within range.

stock everything else minus axle back and suspension.

so where could the power loss lie within? the clutch, or the possible valves? or maybe something else along lines of tuning?

 

video coming in a few

 

I had bent valves on mine as well when i bought the car, it would not perform fully (stock). Should prob get the valves checked out

 

i guess my next option is to do a leak down and compression test and take it from there

 

Was it a DynoJet or Mustang Dyno? Those numbers look about right if it was on a Mustang.

 

dynojet

 

there was no baseline done, idiotic of me not to. i have yet to install fuel pressure gauge. i had the s/c sitting in my garage for two years that was on a spare motor i had. as far as i know it was set and never altered.

if it is my fpr, would my a/f off? and if its egr, what r the signs of it being malfunctional?

 

 

Is it possible that the stock headers are a large part? I personally haven't seen a dyno on a supercharged CL that has stock headers and intake.

 

If you are running the standard pulley the IMRC does not need to be disconnected. Make sure you are running premium fuel (91 octane or higher). If you are putting down numbers like that you need to check to make sure the IMRC is opening at above 3800 rpm. The easiest way to check is by opening the hood, reving the engine and looking at the back of motor to make sure the butterfly opens.

Did you install colder plugs as well?

I forgot to add... Get a set of used Comptech Headers... The stock headers are not going to give you the gains you are looking for.

 

Did you dyno in 3rd or 4th? 4th is the correct gear to dyno the 6MT.

You also REALLY need headers. That makes zero sense not to have them. But have a SC.

 

Fuzzy
Really? isnt 5th closer to 1:1 though?

 

1st - 3.933, 2nd - 2.478, 3rd - 1.700, 4th - 1.250, 5th - 0.976, 6th - 0.771, Reverse - 4.008, Final Drive - 3.286

 

I think I'm right there with you w/o boost

 

hey didnt i meet you one night in houston back on westhiemer where everyone was racing

 

I think your biggest downfall is not running some aftermarket headers. Are you running colder plugs too or the stock plugs. Also you should idle around 38 PSI for your fuel pressure and your A/F should read in the 12.X range.

If you need some Headers I'm getting rid of mine and they should be off the car tomorrow.

 

For the dyno question, yes 4th is the right gear to dyno. It is the gear closest to 1:1 without being under it.

You do definitely need headers, possibly intake also. Check FPR, fuel pump, injectors, sparks, imrc, check pulleys. clutch, valves. The S/C was used right? May need maintenance on it. Does your car need any major maintenance? Compression/leakdown as you suggested may be helpful also, especially if you have thrown codes. If things get real bad you still have the other motor right?

I thought a/f on FI was ideally closer to Stoich - like low-mid 13's?

 

Maintenance how would you come about that? Clean it out? Maybe it might be ESM problem Im just shooting some stuff out there.

 

Depending on the condition of your car, I dont know your cars mileage, but you might want to look into an aftermarket fuel pump, fuel rails, aftermarket spark plugs and injectors. Then after you do that get a fuel pressure regulator and guage. You should also have a gauge to know what psi your running and your air/fuel mixture.

For a supercharged CL, from the list of modifications you have, you have more suspension work than engine work for a blower.

You might have to professionally tune your car. It could be a list of reasons why your blower isnt doing what it is supposed to. The supercharger could be doing more harm to your car than performance.

If you got it installed by a shop thats reputable, then they should know what's going on with a reading from dianostics.

It might also be what your thinking, valves, seals, and air fuel mixture can alter the compression of your engine. You might be running to dry on fuel.

If your really thinking about dealing with this s/c without any banjoing around, I'd take to a performance shop thats reputable in not screwing their customers in the ass and let them take a look at it.

Like I said, its probably something internal or wrong with the s/c

 

Thats wierd but familar....

A kid doen here in CO charged his 06 TL and it made it loose power if anything. I think he got it fixed now but, I wonder if this is a related problem.

 

For the basic SC install with the stock pulley you shouldn't need to mess with anything like injectors, plugs, tuning, etc. It should be a direct bolt on & go. This was always CT's claim.
Now once you go HBP & other SC upgrades that's different.

 

How do you not have an aftermarket intake and headers? Also, how come your sig says you have CT headers?

 

yes i did. i still got ur #. ill be back there this sat night.

 

I am using the denso ik22s. i do have comptech headers, but got lazy on installing them. i didnt think it would bottleneck me this much. i am running 93 octane fuel. and the high dyno run was in 4th. it is the standard pulley i am running. i have the comptech icebox, i dont understand how some may think its stock intake with the s/c? i have 82k on the motor.

worst comes to worst i do another motor in my garage.


something wierd i noticed right off the bat, and id like other s/c owners to chime in is, do you feel a wierd buzzing or vibration thru the gas pedal after the s/c install? everytime i accelerate it feels like the gas peddle has a very harsh feel to it?

 

Nope... No strange vibrations in the gas pedal.

 

i definately feel something funny in the gas pedal. it wasnt there b4 the install. what could it be?

 

spoke to comptech and said thats just normal vibration from the s/c spooling

 

what shop did you get your dyno at?

 

intercrew in garland

something else i forgot to mention. i get a sudden surge of power around 5000 rpm mark.

its almost like 1st and 2nd gear have power thruout power band. but every gear after that has no power except after 5000? what could that be related to?

 

ok, I made a mistake, looked at my fuel pressure guage just before and saw it said 40 psi, not 14, and others have told me at idel, it should read 40 psi. Check that. Also, I would get a second opinion, such as a different dyno.

 

ill be installing my fuel pressure gauge tonite. just got a gatorback belt. switching the shit one i have on there now.