Underdrive Pulleys

[SidewinderGTS]

Seen this on E-bay
http://cgi.ebay.ca/Unorthodox-Racing-Cra...1QQcmdZViewItem
Thinking about getting this.
Any tried this and what HP gains can you get?
Thanks

 

[grcforce327]

I bought mine when they were closing them out.Paid $90,but the belt info was wrong.Let me know if you need the belt #.

 

[Dave's Big Brakes]

New Under Drive (6 Pulleys) Kits coming SOON I guess no one reads New Products and Supplier Specials

These new kits will include the correct size belt The kit will have the following pulleys:

Crankshaft,P/S, waterpump,Idler, Tensioner & Alternator all are made from Billet and made in the USA. About 4-6 weeks, proto types being made now.

Dave

 

[VIPER BAZ UK]

Dave
I presume they fit along with the PS pulley i already have?????

 

[OKViper]

Is there any power in these? Proven, of course...

 

[Dave's Big Brakes]

Dave
I presume they fit along with the PS pulley i already have?????

Don't know yet the p/s one is the one for adjusting for belt size, so you'll just have to wait

CHOMP CHOMP CHOMP

Dave

 

[VIPER BAZ UK]

 

[GTSnake]

So is this the opposite of the David Weaver pulley? This is smaller than stock and the David Weaver is larger?

 

[GTSPOWERED]

What if you were to combined the two different set ups? The over drive on the crank for speeding up the Roe supercharger and the under drive set up on all the others to not loose horse power.

Patrick Mathias.

 

[Shelby3]

What if you were to combined the two different set ups? The over drive on the crank for speeding up the Roe supercharger and the under drive set up on all the others to not loose horse power.

Patrick Mathias.

The Weaver pulley is only for increasing boost by spinning the ROE blower to higher rpm's. Unless you are wanting to run more than 10lbs. boost and have the free flowing heads and exhaust to handle it, stay with what you have.

 

[Dave's Big Brakes]

Is there any power in these? Proven, of course...

I'll only claim that their "pretty & won't break"

Dave

 

[Dave's Big Brakes]

Is there any power in these? Proven, of course...

I'm only going to claim, that their "pretty & won't break"
because even if you dyno them, someone won't like the numbers and flame them ETC, ETC, ETC,

There is already enough of the pulleys tested, unorthox,March, ETC
except they only did the crank, and nothing else They all need to be matched, and done right

 

[56LesPaul]

I'm sorry I have no reply..I miss-read this post as underwear pulley...in that case I am a pro in pulley me underwear off...

 

[VIPER BAZ UK]

Is there any power in these? Proven, of course...

I'm only going to claim, that their "pretty & won't break"
because even if you dyno them, someone won't like the numbers and flame them ETC, ETC, ETC,

There is already enough of the pulleys tested, unorthox,March, ETC
except they only did the crank, and nothing else They all need to be matched, and done right

You will never please every one Dave....
But a full maching set in billet ali is going to be better than the stock ones i would think....

 

[SidewinderGTS]

I bought mine when they were closing them out.Paid $90,but the belt info was wrong.Let me know if you need the belt #.

Yes I would need belt #.My friend that made my supercharger pulley for my GTP is making me one for the Viper.

Thanks.

 

[grcforce327]

Yes I would need belt #.My friend that made my supercharger pulley for my GTP is making me one for the Viper.

Thanks.

[/QUOTE]

I realized after I posted,that you have a Gen II.Mine is for a Gen I!Sorry about that!

 

[SidewinderGTS]

Yes I would need belt #.My friend that made my supercharger pulley for my GTP is making me one for the Viper.

Thanks.

I realized after I posted,that you have a Gen II.Mine is for a Gen I!Sorry about that!

[/QUOTE]

No problem. Thanks for quick reply.

 

[mrsantafe]

Whats the part number for a gen 1 on the belt? thanks

 

[JUCD VPR]

If there is some way of knowing i will get some sort of power increase. i would buy a set, but why buy something that dosen't give you any power? Unless of course you have a show car like Redenuf.