I paid the big bucks for the Renntech kit, (crank pulley, water pump, idler pulley & ECU) and they do look stock. With this kit and a sprint booster, well all I can say is WOW. When I took my car in for the four wheel alignment the alignment tech was trying to guide the guy up on the rack since it sat so low and the guy driving my car told the alignment tech to get the hell out of the way he was afraid he was going to run him over.

 

Did you do the sprint booster PRIOR to the renntech kit?

Did it make much of a difference?

To me, the SRT6 doesn't lag nearly as bad as my '04 did...

Thought I'd ask,

SQ

 

I done them both at the same time, so I really don't know how the sprint booster would have done by it's self. But all I can say is it's damn touchie.

 

You don't have any dyno numbers, do you?
Any track times?

Also, where'd you get that supercharged emblem?

SQ

 

I would really like to get a dyno done, but I live in the boonies and there's no speed shops around close. I've not taken it to the track yet either, there is one of those close to home, but it's only an 1/8th track. I have a pair of 285 F1 goodyear run flats that I'm going to get mounted up on some wheels one of these day's and I am going to go to a 1/4 mile track, there's a few with in 50 or 60 miles. As for the emblems, they came from :http://www.sfxperformance.com/parts/...ERBADGE-X2.htm. They were the first thing I bought for the car, I paid around $20 more for them than they are now.

 

The one down side of the pulley's is that it makes launching the car cleanly that much more difficult. The extra torque makes it even easier to spin the tires.

 

That's a given. Drag Radials will be needed in the future me thinks... Hopefully the rear-end and axles cane take that abuse.

 

The 285's on the rear with the softer Eibach's springs does help that problem some. With that extra torque, I'm going to see what a "w" mode feel's like from a launch, that's something I hadn't tried.

 

FYI I gained 15 rwhp from the ASP pulley upgrade (which appears smaller than the LE pulley) and I had powerchipgroup tune my ECU. You'll need to specify a 15% reduction, and I think you'll get more out of it.

I specified 25% reduction anticipating a pulley upgrade that hasn't come yet and now I'm running rich. I would specify a 20% reduction with the LE pulley when getting your ECU tuned. You should see a 20 rwhp difference with both.

I think the ASP pulley is in the 170's but I'm not for certain. The LE pulley is 185mm, and the pulley I'm custom making at a machine shop is 192mm.

 

would love to hear your results on this...

 

*Update* It looks like they changed their logo. I guess this isn't the same company as the other Edge company after all.

 

Interesting product; but no way to contact them. None of the Hyperlinks on their website seem to work. No phone number, address or email to contact to ask of the pulley is dampened or if a new belt is required? Not sure of the benefit of the damper but it is stock on the AMG/SRT-6 motor.

Click on add to cart and you must pay via Paypal.

If I cant get my questions answered then I will go with a "real" shop like ASP who took my call and answered my questions and send me some pic and a brief install "how to".

I think LE is a couple of guys with a C20 who fabbed up a larger crank pulley and now are trying to sell the idea to others.

Not much a business plan if you ask me.

 

The site must be temporarily down since they updated the site. The pulley is in fact dampened and I'm pretty sure you can use the OE belt.

C32's to be precise.

 

20 WHP!!!??? With the Pulley setup and ECU tune??? That makes no sense. If that is true then it's TOTALLY NOT WORTH THE EXPENSE! How much does the Renntech kit add?

Is there a website for the ASP pulley? I found their website, but searched it high and low and could not find anything for an SRT-6, a C32 or an SLK32... Am I missing something ???

 

Don't take 20 rwhp for granted, you'll notice it quite a bit.
You have to contact them directly and ask for it, you are correct it does not show up on the site. Here's from the e-mail response I received when I inquired about the pulleys for the SLK32 (has part #). Claims 20 hp to the wheels without reprogram, but I got the reprogram and only got 20. I cannot attest to any difference with or without because I did them at the same time.

Also, his name was Lee, and his e-mail address is asp@aspracing.com
> You need pn 331380 , crank, wp and idler pulleys. This kit:
> Retains the factory belt for $970, good in stock. 20 hp to the wheels.
> Without an ECU reprogram.

 

Renntech adds a minimum of 45 HP.

 

At the rear wheel or at the engine? Huge difference...

Also, it's half the price, so you get what you pay for too.

 

I am going to install the ASP Pulley in two weeks but I have yet to decide between three companies for the ECU Re-map.

I will pay for three dyno-runs (donations excepted).

1st Dyno Run will be stock - except the SL55 y-pipe and a boost gauge. but should give a decent stock baseline.

2nd Dyno Run will be with the ASP pulleys installed.

3rd Dyno Run will be after ECU Re-map.

Total cost is expected to be around $1,270 - $1,400 plus dyno fees.

 

My guess would be at the flywheel.

 

UMMM, yeah...

I've heard and read claims on here and on MB World that the Renntech kit puts it up to right around 400 HP at the crank, so the 45 you claim with the Renntech kit makes sense. After reading all this, I'm going to save up for the Renntech kit. 20 WHP for ~ $1,400-$1,500 or 45 WHP for $3,000...

I'll save my money and get Renntech kit...

Unless someone can post some accurate 1/4 miles slips before and after the ASP setup. Dynos don't mean a lot. 1/4 mile slips tell the TRUE story...

From what is being described here, all I would expect from an ASP car would be 12.7s. I think the Renntech would be good for 12.3s...