TonyJ89117

Hey guys,

I am thinking about installing the ASP pulley along with the Evosport headers without an ECU reflash.

Is there any real benefit of getting the ECU reflashed?? I have read in various threads that other forum members have bypassed the ECU, unless you have a need to exceed 160 MPH.

Also, how much labor is involved in installing the ASP pulley?

Thanks
Tony

Jrocket

Either item installed by themselves and you could get away without a tune,install both and I would recommend a tune.

DFW01E55

I've had the ASP pulley without ECU tuning for 6 months.
No apparent issues although I think it burns a bit richer - if that's possible.

If I were to change the exhaust or intake, I would definitely do the ECU tune.

Labor by the book is 3 hours (as I remember) but for an experienced tech, it's really only a 1 to 1.5 hour job.

Jrocket

If your seeing more black soot on the exhaust it's possible your belt is slipping too.

V12Godspeed

Could you explain this...not sure I understand this. Do you mean black color on your exhaust tips...like rear mufflers?, lol

jangy

Yes, he does.

I would NOT get a tune. I would do both mods and then dyno it. These cars run so rich that I think it will adjust to just pulley and shorty headers. If anything it should run a bit leaner, which is GOOD.

Only reason I would consider an ECU tune would be with an 80mm TB or to remove / raise the speed limiter

jangy

Oh yeah, I would be planning on a cooling mod, though. Without the 80mm TB, you will have a heat soak right at the SC. Consider a constantly running marine pump if you aren't going the full IC upgrade route.

TonyJ89117

Thanks for the advice. I would prefer to avoid the ECU reflash, which sounds very viable and save me some money at the same time.

Just curious, do most guys get their ECU's flashed or skip it?

BTW, is the ASP pulley a good choice versus the other choices such as the Kleeman or Evosport? Also, what are the advantages of the additional pullies included in the Evosport kit wersus the single ASP and Kleemen pullies?

Is the 80mm TB the next step after the pulley and headers or is there an intermediate step that remains?

Thanks for your help!
Tony

TonyJ89117

I am researching the higher flowing pump now. Is there that much of an improvement to consider a the full $3k IC upgrade? BTW, why does the larger TB reduce heat soak?

Thanks again.

jangy

The TB is the next logical choice. WHy? because it is the are that will be your bottleneck IF you have intake boosted and exhaust open. That makes it the heat sink. Once you open up the TB, the heat can get through faster as you have a higher turnover of gases.

As for the IC, yes it will make a difference, especially when you are pushing the envelope with the ASP. I would personally look for a lighter alternative with better dampening.

All in all, the car will fly if you do headers, TB, and pulley.

DChan415

I've been running an ASP pulley on the stock ECU tuning for a year. No problems so far. Heat does build up quickly though. But it isnt hasn't been an issue yet as I rarely do full throttle runs back to back.

TonyJ89117

Are you running other mods in addition to the ASP pulley?

Thanks

stevebez

Got stock ECU and ASP ... no issues ... will install the VRTB and VRAB soon and get a Wetterauer custom tune... and some other bits they add

Ah and also have the W220 cooler going in when I have figured out how to make it fit !!! I might also go twin pumps ....

E55 RUSS

Runned with wihtout ECU then with ECU ...With ECU car feels much FASTER !!!

DirtyVegasMB

Has your SC shut down on you yet with the ASP pulley in? TIA

TopGun32

my IC pump failed right after I installed the ASP pulleys.. but took in for repairs and the new IC pump from the dealer is working fine. I have done back to back to back WOT runs and no shutdown so far.. even in 100F+ weather..

but you can tell when the car is not as responsive, when the car is running hot.

I also don't have ECU and I runs really good. A bit of head snaping in 1st gear and a bit of belt slippage but.. its all good.

I have Sprint booster off right now.. since Sprint booster was affecting my MPG.

I'm sacrificing a bit of responsiveness for about 1 to 2 MPG on a 75 round trip commute. (In addition to field visits, which can add to about 150 miles in 1 day)

If I was planning to keep the car (which I'm not) I would do headers and ASP and no ECU, better IC pump and 10 degree fan mod to keep it very simple.

Zod

hmm how often are u suposed to see this soot? i see it very oftn on my car and it only has 3.6k km on it and its a 2006 model.
Also when i turn on the car some times i hear the slip sound at least thats what i think it is.
Any thoughts ?

E55 RUSS

NO..I have latest MB pump....