I spoke to Wayne at LET and he said he had a solution to the MAF/Speed density issue.

 

whats he gunna do? use a vane air flow meter and use it along with the MAP to create his own "MAF" sensor??

 

I should have listened better. I was only concerned with the fact that he could tune it to run great. He mentioned the issue and what he done to make it all work.

 

i was discussing the matter of tricking the computer to see boost with one of my professors here at GT, and i asked him if that should work, and he's gunna check into it with a few of his contacts at Mercedes and Brabus and find out. Cause using a VAF meter and the stock MAP, along with some very minor programming logic (well, comparatively speaking), is how the early MAFs were utilized. I have the formula around here somewhere and i'll see if i can find it.

 

I almost forgot to report that I'm finished! I'm running two shots of nitrous. I only had 75hp, now 130hp. I added a WOT swich and a 2nd fuel pump. I'm also running a city ECU Tune for the city and one for Racing (20hp). I'm very happy with it, sorry its not a turbo or supercharger. I'm going to the TMS laps for charity and disclose my mod there.

 

Can't wait to see it! See you at TMS.

 

Sweet.......are you running both tunes on the same ECU?

 

NO, i got two ECU. That's why it took so long to get this done. $1600 for another ECU (tuned) and $1200 to add the 2nd shot, WOT, extra pump and the purge, etc.

 

Any numbers on your set up yet?

 

So I am putting funds together for this now that i have the intake and TB and such. I'm about to sell my Greddy E-manage Blue to put more funding in the RMT account, UNLESS you guys think I'll need it for the build. I have looked into it a lot and haven't read that i will need a piggy back system... Anyone know things i don't?

 

Well it's been proven that you don't need a piggy back for a turbo setup on these cars. Eurocharged/LET has a turbo SRT6 at over 500rwhp. So I would go with no, you don't need a piggyback for your ECU...unless there is something about a rear setup that would make it any different...

 

If you're going to turbo your car, you need some way of getting more fuel into the engine. I know the e-manage can take care of the fuel and timing to a degree but you also need some way of monitoring and compensating for the addition of boost and you'll need to keep the MAF sensor from seeing it as well. That is why you'd want to invest in a piggyback like an FIC or unichip. I've worked with both and the FIC is a pretty slick little unit.

They did that turbo setup on a car that was already using forced induction, they just changed the manner in which it occurred from using a supercharger to using a turbo. Obviously it was more difficult than just taking off the supercharger and throwing in a turbo but the computer already reads boost and actually loves it but the NA doesn't like to see boost.

 

The SRT has an ECU that is programed to read boost which makes it easy to change how that boost is produced. I have posted a couple of times that based on how I am going about my V8 swap, I believe you can take a used SRT ECU and preferably with the wirirng harness and send the ECU to Beckmann Technologies to be unlocked. You then use the STAR Daignostic System to program the the SRT ECU to the n/a Crossfire. When you Enter STAR DAS you would chose by car and not by VIN. You cannot chose Crossfire in Star DAS but you can choose SLK32. I have already tested my STAR sysem on my n/a by choosing SLK320 and it worked fine because the part number on my ECU is exactly the same as what comes in the SLK320. If someone sends me the MB part number on your SRT ECU that starts with "A 112 ....", I will check to see if it is the same as the SLK32. Or you could just get a used SLK32 ECU if the numbers are different. IF fine tuning is still needed Wyne form LET/Eurocharged would be able to make adjustments. Fuel pump and injectors form an SRT might be a good idea as well.

 

Just as a point of reference, if I remember correctly Jerry and Tony were responsible for the tuning on the turbo. I would go to them for any of my tunes...but everyone has there tuner preference...even within a company

 

Wayne does mostly mercedes work and Jerry does most of the Crossfire work if I remember what they told me. I have been talking to Wayne becuase of the nature of my V8 conversion which is a MB CL500 engine and Waynes experience with that engine and STAR DAS developer mode which probably will also be needed if someone wanted to program a SLK32/SRT6 ECU to a n/a Crossfire.

 

If you have seen any of the recent tunes done by Eurocharged/LET on the V8 and bigger engines...its all Jerry. Jerry picked up 60rwhp and 170rwtq on a tune alone (everything else stock) on a S600 V12TT.

Like I said everyone has preferences...

 

Wait a sec, you got my head all wrapped up like a pretzel.. lol
So i don't need it cause we MAY be able to take a SRT ECU and use it on my N/A? Isn't getting it unlocked to be used on a different VIN going to be pretty difficult? I like the idea since it all stays somewhat "stock" but how do i get all that done??

 

Yes, and I have mine. for my perposes if the guy isn't experienced in developer mode in DAS, I have no use for them. I only tried to share an approach to dealing with boosting a n/a car. Switching a SRT's supercharger to turbo isn't relevent to this thread goal of turbo charging a n/a car. Now let's get back to figuring out how to turbo the n/a.

 

I thought the idea of "re-virginizing" a SRT6 ECU to the VIN of an N/A coupe (or a V8 ) had been brought up at the minimal cost of $250? Is that still a viable option?

Then you would be working off of base maps designed for boost and the tuning process would be a lot simpler (in theory).

 

Unlocking is really easy. Just send it to Beckmann and they will call you when it is done and take take $250 payment over the phone. I got my unlocked ECU back last week. One of the biggest problems that we all talk about on here is dealing with the electronics. You cannot get a new ECU from the dealer without giving them your VIN number and you pay a fotune for a ECU that comes with the VIN informaiton already prgramed to to original car. Used ECU's are considered worthless since they have all the original car's VIN and imobilization data locked in. Used ECU will not work in any car except the one it came with. Ebay sellers sell used ECU's all the time to unknowing buyers. Howver, I did find out that one company can unlock used ECU's and then they sell them to repair shops as refurbished and that is Beckmann Technologies. check this site.

If a V8 ECU can be programed to a different car, which is what Kanzus did when he dropped a AMG 55 Kompressor engine into a C240 then using the same approach should be able to be used to adapt the SRT ECU to the n/a Crossfire and may even be easier. As soon as I have my V8 running, I intend to add forced induction just as KAnzus did and i will use the 55 Kompressor ECU to do so.