ZHPizza's red car

[ZHPizza]

GUYS HELP I'M TRYING TO FIND A POSITRAC DIFFERENTIAL SO THAT I CAN KEEP THE REAR END UNDER CONTROL

TOO MUCH POWER

SEND TIRES


Nah I can't tell any difference yet, but I haven't had a chance to open it up. My commute is <10 minutes and <40 mph.

Have the same ones on the wife's zhp. I did not bother with the alternator pulley though.

Overall not a bad mod.

I'm thinking that the alternator pulley might make the biggest difference of the three since it's so tiny to begin with. The stock one is also heavy steel, while the Turner pulley is lightweight aluminum. Not that weight is much of an issue on such a small diameter, but I'll take all the free power that I can get.

The only way that I could see it being an issue is if your wife has a massive stereo setup in the trunk with multiple amps. I confirmed with Turner before I ordered that they had tested with Xenons on and both butt toasters on full toast. Might as well throw it on the next time you have the alternator off to replace the OFHG...

oh man... nice one.

good work on the pulleys. let me know what you think. at the very least... you got rid of the plastic pulleys.

Yeah those plastic pulleys felt very brittle in hand. Any plastic wire loom in the engine bay already crumbles if you make eye contact with it. Does that happen to Canada cars too? You and your stupid perfect headliners...

That's the clearance on the UUC pulley too. I definitely noticed a difference. I think Ryan (Rkeeshaw) noticed a 10HP increase in upper RPMs on the Dyno IIRC.

I used Coopers years ago on almost all of my vehicles at the time... they make a really decent tire.

Damn that's really impressive. It would make sense that I don't feel a difference at low rpm, as the change in diameter will be more pronounced as the speed of rotation increases.

Pumped about the Coopers. I feel like people have been sleeping on them for years. They're doing a big marketing push for this new generation of RSA's, so I wanted to grab them before they got popular and the incentives went away.

I stand corrected, I forgot how that belt is routed. Since the power steering pump is one of the under driven accessories, does that affect steering weight?

Yeah, the A/C pulley has it's own belt coming off of the crank. I was thinking that I should have replaced that belt at the same time, but it looks fine and if it were to fail I'd only be without A/C -- not exactly catastrophic.

People have said that they noticed an increase in steering weight at low rpms. I didn't notice a difference when driving to work/parking, but I've been driving my Mazda for two weeks so the steering is going to feel crazy heavy anyway.

[slater]

Yeah those plastic pulleys felt very brittle in hand. Any plastic wire loom in the engine bay already crumbles if you make eye contact with it. Does that happen to Canada cars too? You and your stupid perfect headliners...

LOL. i'll happily trade sagging headliners for RUST. i hate that stuff.

the plastic still gets brittle up here, but i don't think as bad. i've replaced my WP pulley with aluminum, but not the PS pump yet. on the to-do list. might try out those pulleys you got.

Damn that's really impressive. It would make sense that I don't feel a difference at low rpm, as the change in diameter will be more pronounced as the speed of rotation increases.

exactly. i spend a lot of time (relatively speaking) pulling to redline in 1st, 2nd and 3rd gears so i would love that.

[Sockethead]

I didn't notice any steering difference, Nor did I notice any change in temp and it was hot as hell here last year... I thought I noticed the engine revved a little easier as well ... did you notice that at all?

[ZHPizza]

i spend a lot of time (relatively speaking) pulling to redline in 1st, 2nd and 3rd gears so i would love that.

Well, I'd say that this is a clear picture of why I didn't notice a difference on my commute and why they would probably be more noticeable when you're playing tag with the rev limiter.

[BMWCurves]

Well don't just sit there, go out and be the stereotypical BMW driver and rev that shit out to redline everywhere on your morning commute.

For science.

[ZHPizza]

Thought that I could spare 5 minutes to go ahead and pop the clear reflectors in...45 minutes later I had one reflector on and was putting the fender liner back in for the third time. Everything that could have gone wrong did, per usual.

Frustration








Really makes me appreciate how silly the bumper reflector looks at all, be it amber or clear.

[Stigissimo]

Thought that I could spare 5 minutes to go ahead and pop the clear reflectors in...45 minutes later I had one reflector on and was putting the fender liner back in for the third time. Everything that could have gone wrong did, per usual.

Frustration








Really makes me appreciate how silly the bumper reflector looks at all, be it amber or clear.

Shoulda bought a wagon! Loser!!!


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[BMWCurves]

That's frustrating. I didn't have any real problems when I replaced mine with color-matched "reflectors" from Bimmian. I opted to use my wide trim tool for the removal process that made it very easy.

[704sw]

Night and day, Nate.

That's frustrating. I didn't have any real problems when I replaced mine with color-matched "reflectors" from Bimmian. I opted to use my wide trim tool for the removal process that made it very easy.

I wish I could buy pre-painted ones (grumbling and muttering about stupid unique paint colors).

I'm going to leave mine in place, mask everything off around it, and paint. There's some overspray from when Peter's paint guy resprayed my bumper and I'm afraid to remove them.

[slater]

looks good, nate! much better.