Pulley swap questions?!

[venomous03cobra]

Its time to swap stock pulley for a 2.8, and i need some help, i know everyone just says drop it off a Kurgan and they do great work but i am sort of on somewhat of a budget, for now i just want to swap the blower pulley with a 2.8 and buy the shorter serpentine belt for less belt slip, but the question come in when deciding how to tune it, can i simply but an SCT and plug it in and answer the questions or does the car need to be proffesionally tuned by a shop? thanks guys

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[Sharkster]

You can buy a performance package with the pulley, tuner and tune to start but you will eventually need to see Bob to get anything mroe out of it.
Been a while so Im not sure if they are still doing this.

 

[Wiked03]

some of the handheld programmers might come with "canned" tunes, but i would NEVER use them.

It is definitley worth the money to have the car tuned by a professional

 

[venomous03cobra]

but my question is that if i install the pulley and the belt myself can i use the tunes that a handheld tuner comes with, i know that i am not going to have the most bang for the buck but will the car be safe to drive and "get on" with out hurting anything?

 

[Wiked03]

i would not consider the the tune "safe" until you verify it on a dyno

 

[nytebyte]

The canned tune in a handheld programmer is really meant to just get you to a professional tuner without blowing the engine up.

I wouldn't give it any significant amount of throttle when on a canned tune.

 

[hj16]

You need to do a mail order or dyno/street tune, period. If you are strapped for cash just wait to do it... winter is coming anyways.

 

[04cobrawhine]

I used the diablosport "box tune" for my 2.76 pulley that they say is safe for 12-14 lbs of boost. Long story short, the electrode of cylinder 2 spark plug ended up getting welded to the top of the pison, messing up a lot on the way there. plus a hand held tuner is around $350 depending what you get and a full tune is maybe $500 depending where you go. spend the extra 150 and save yourself several thousand later.

 

[10thSVT_03]

Call Tim Barth @ Mr. Norms Garage in Machesney Park. He can sell you the pulley and do the tune for you. He has tuned a number of my friends cars as well as my own. Cannot be happier with his tune and there service.

 

[blck10th]

you can pay now or pay later. wait and pay one time

 

[Bob_Kurgan]

we can supply you with a pulley, idler, programmer, and custom mail order tune proven on my dyno over many years

 

[Slow99x]

NEVER run the stock idler pullies with an after market blower pully. They will grenade on you. You can run the stock belt size with a 2.8 upper if you use Billet Flow 4pc idler set. If you do get this the 90mm pully goes on top because if you try to use the 100mm like the old instructions on the website say, your pullies will make contact.

 

[alwaysready]

NEVER run the stock idler pullies with an after market blower pully. They will grenade on you.

That is interesting... ive never heard that before..
whats the reasoning
a smaller blower pulley spins the blower faster and has no effect on changing belt speed on any other pulley.

 

[04cobrawhine]

i dont think it matters what blower pulley is on there, they just blow up anyways.

 

[nytebyte]

I always thought it was the the increased tension applied to the belt due to spinning the blower faster. Also, an idler pulley changes some angles and tension too.

 

[04cobrawhine]

I always thought it was the the increased tension applied to the belt due to spinning the blower faster. Also, an idler pulley changes some angles and tension too.

could be. i just remember 1 of mine blew up with the stock pulley

 

[garvin86]

yes you have to change the idlers either way with the pulley swap to save them from destructing, and yes you can do the pulley yourself without a dyno tune, just go through a reputable shop "like kurgan" and get a mail order tune, that is what i've been running on my gt500, got the upper pulley with a mail order tune through evolution performance and it runs great, ran it all summer. but agian for you just swap over to the NGK plugs swap out your idlers, get the tune and good to go, its a nice starter for mods

 

[garvin86]

but seeing you made the thread almost a month ago, did you complete the swap yet and if so how did it go?