Toadster

if you're interested in the S/C pulley info of recent, this post has all the meaty details
not selling anything here - just providing info in one concise post

One car has been widely tested with over 4 months and about 8K+ miles (see page 4), and 11.7@119 at the track.



S/C Pulley Specs:

• Caveat Emptor
• 84mm in size
• 1.5 to 2 psi increase (as compared to a stock supercharger pulley)
• 2.5lbs (one pound less than stock 3.5) ~28.5% reduction in weight
• equates to 168-170mm crank pulley in power
• requires the ECU to be tuned due to differences in AFR
• there's a belt wrap kit in the works, not required but nice to have if you have slippage

In general, if you only have this pulley as a mod (nothing else)

• you don't need a fuel rail or bigger injectors (not that it would hurt either)
• it can be added along with the crank pulley to make even MORE power
• yes, the pulley increases S/C heat output so cooling is recommended
• one step colder plugs, not required but a good idea to reduce EGTs

Thorough DIY Installation Instructions

Eurocharge Tuned E55 with the following mods:

• K&N Air Filters
• Bigger H/E installed
• secondary cats and resonator removed

This car (baseline w/o pulley) ran 419HP on the LSX dyno and benched 464HP after pulley and tune - that's ~45 RWHP increase (that's to the wheels!)



http://youtu.be/SLVPHtqJ1CU
http://youtu.be/E1THC18f7OM

AMG E Power

Double post !!! Lol j/k let us know how that thing works out still not so sure about it.
If u don't mind me asking y did u choose this one the price ? Couldnt u get the same gains by just getting a kleemann 168 pulley or 172mm eurocharged one ?

Toadster

LOL

I picked this one because it seems to be less strain on the rest of the engine, the S/C can now spool up faster, and less wear/tear on it and the other engine components... should increase overall driveability
what's nice is the guy who already have a crank pulley can add this for even more power - so it's a double pulley upgrade for some

I hope to get it installed soon, waiting for the H/E and maybe do both at once...

AMG E Power

Cool didn't know u can have like a double pulley so to speak. As for the heat exchanger goes I already installed my eurocharged one it is sick looking and huge !!! Works great !!! I just don't c how u can have a double one. the EC one takes up so much room. I hope the s/c works flawless for u with no problems

berti_00

tod would you hurry up and install it

AMG E Power

That's what I'm saying !! Then drive it like hell for long distances and report back

berti_00

lmao that right

chawkins2001

Yes please report back to the members, if anything goes wrong, dont count on the sellers doing s**t.


GOODLUCK bro!

berti_00

^^^ i wonder why they don't?? good point though

bnzuovr

This is exactly what im waiting for not going to be a guinea pig anymore. Risk and cost is to high with a motor like the 55k,Good luck Toad im sure it will be fine but don't hold your breath if you have any issues. Who knows maybe ill pick one up in a year or two once they have been on a few cars for a while without issue.

berti_00

ill be waiting too

aghakauve

Ive had this pulley on my car for about 15k miles now and I havent had a single issue.. For the people that know me, know I drive my car like I stole it! No belt slippage nothing. The power up top is amazing! So for someone that as had this pulley on his car for 15k hard miles, I have no complaints! Feel free to PM me with any questions.

berti_00

^^ your the man, hearing this will give alot of us an idea of what to expect

bnzuovr

good to hear thanks for the insite on your experiance good to know it is so far a solid peice. Gives me alittle more confidence in modding these motors just had a sour taste in my mouth after my last horrible experiance with modding my old E.

aghakauve

No Problem guys, if you check my thread that I created I have a video of me doing a hard pull on my car. Plus my car is a high mileage E55 and I give her a pounding every day lol! This is a MUST mod for the 55's! PM me or call me if y'all have any questions, if your local hit me up for a test drive hahaha!

Edit: Video of the 45-140 pull.

blackbenzz

What company manufacturers this product?

aghakauve

I think a wicked company named UPD (Ultimate Performance & Design) makes them.

blackbenzz

Thanks. Why is there no phone number or address on their site? Looks like a new company with very little products including the infamous rtr pulley

CharlyE500

Tod, this is the best thread you made with all the comparison. Good job and appreciate the effort. I will do this mod until my SC bearing and clutch need to be replaced. Or at least 6 months from now. I believe its been sold for 30 pzs so if any problems will report back in the next few months.

CharlyE500

Their website looks very familiar design as RTR

http://www.ultimatepd.com/

http://redtoothproducts.com/

None of them has phone contact number, I smell something wrong here....

berti_00

so this pulley is complete with SC bearing and clutch??

chawkins2001

This looks like the same owners as Redtooth Racing if you ask me. Fly by night company, with no physical address, no actual phone number to talk to someone, the original thread describing the product started by Brooke, and sold by both Brooke and Shardul or probably eBay too.

Let the members make the descision for themselves, but this is a mirror image of Red Spoof Racing pulleys, so keep in mind what ADMIN ScottW211 said, Caveat Emptor..........

CharlyE500

Yup ! that's why if your SC clutch is gone or bearing you can upgrade this smaller SC. If you want to stick with stock SC clutch Dealer quoted close to $1K.

CharlyE500

The best way is wait for 6 months until more than 50 people using it for thousand of miles. And of course, keep your stock SC pulley at home just in case.......

berti_00

ohhh sweet deal... yah screw the stock sc clutch mine is perfect as of now but soon as a dozen people install them and give feedback i'll get one too