Under drive pullys. - ZR-1 Net Registry Forums

rhipsher · 08-17-2011

Who has them on their Z? What kind of gains do you typically see with them?

HAWAIIZR-1 · 08-18-2011

Hey Rich,

I have them but have no ideal the gains since they were installed with everything at once. I have SRP pulleys (entire set) and love the quality, fitment, looks and had no issues at all with it. If developed by Randy Woods and father then I trusted it for what it stated and great folks that are way, way, way smarter than I will ever be. Sorry, that is all I can share about my experience with the product.

Craig

GOLDCYLON · 08-18-2011

Quote:

Originally Posted by HAWAIIZR-1

Hey Rich,

I have them but have no ideal the gains since they were installed with everything at once. I have SRP pulleys (entire set) and love the quality, fitment, looks and had no issues at all with it. If developed by Randy Woods and father then I trusted it for what it stated and great folks that are way, way, way smarter than I will ever be. Sorry, that is all I can share about my experience with the product.

Craig

Craig are you also running the ATI super balancer on your car? Any clearance issue with these mods? I called SRP today and emailed them this morning I have not heard a peep yet

GOLDCYLON · 08-18-2011

Ok got a few PMs from a few folks. Something the community should know. At idle the temperature can ride high faster due to less mass. Does this makes sense. These folks have upgraded their radiators.

Where is TomTom when you need him

FU · 08-18-2011

Got the Wood's pulley with an ATI damper on the 441.Fluidyne radiator too.....no heat problems here.

VetteMed · 08-18-2011

Quote:

Originally Posted by GOLDCYLON

Ok got a few PMs from a few folks. Something the community should know. At idle the temperature can ride high faster due to less mass. Does this makes sense. These folks have upgraded their radiators.

Where is TomTom when you need him

Daryll, I'm confused (yep, again). Where is there a reduction in mass that is going to cause higher temperatures at idle? The only way I could see pulleys changing idle temps, is if the water pump is rotating more slowly, circulating less coolant through the radiator. Not sure where mass comes in to play here?

-Andrew

GOLDCYLON · 08-19-2011

Your not confused. I was. That was what I was pmed. The waterpump moves slower at idle

HAWAIIZR-1 · 08-20-2011

Quote:

Originally Posted by GOLDCYLON

Craig are you also running the ATI super balancer on your car? Any clearance issue with these mods? I called SRP today and emailed them this morning I have not heard a peep yet

Daryll,

I have the stock balancer on my motor and was able to get the 3 piece set at the time. I thought about the ATI at the time, but was worried about issues as I have enough of those already. I will say that I did not find any noticeably changes to cooling or charging system with the under drive pulley set.

GOLDCYLON · 08-20-2011

Quote:

Originally Posted by HAWAIIZR-1

Daryll,

I have the stock balancer on my motor and was able to get the 3 piece set at the time. I thought about the ATI at the time, but was worried about issues as I have enough of those already. I will say that I did not find any noticeably changes to cooling or charging system with the under drive pulley set.

Thanks Craig good to know. The 2 piece is NLA with no future stock forseeable according to Ron. He left me a voice mail

HAWAIIZR-1 · 08-20-2011

Quote:

Originally Posted by GOLDCYLON

Thanks Craig good to know. The 2 piece is NLA with no future stock forseeable according to Ron. He left me a voice mail

Sorry to hear that and I see they list separately the power steering and the water pump, the only thing missing is the alternator pulley. I don't think there was a size difference with that part, but aluminum and lightweight if I remember correctly.

Calling on Carter...........How about some under drive pulleys?

08-17-2011	#1
rhipsher Join Date: Aug 2008 Location: Houston 90 Red ZR-1 Posts: 2,320	Under drive pullys. Who has them on their Z? What kind of gains do you typically see with them?

08-18-2011	#2
HAWAIIZR-1 Join Date: May 2010 Location: Japan Posts: 3,581	Re: Under drive pullys. Hey Rich, I have them but have no ideal the gains since they were installed with everything at once. I have SRP pulleys (entire set) and love the quality, fitment, looks and had no issues at all with it. If developed by Randy Woods and father then I trusted it for what it stated and great folks that are way, way, way smarter than I will ever be. Sorry, that is all I can share about my experience with the product. Craig __________________ Craig "ZR-1 NO KA 'OI" "ZR-1 ICHIBAN" 1995 #228 Black/Black with Dunn Heads ZR-1 owner since September 2003 ZR-1 Net Registry Founding Member #0074 NCM Lifetime Member #2048

08-18-2011	#4
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,155	Re: Under drive pullys. Ok got a few PMs from a few folks. Something the community should know. At idle the temperature can ride high faster due to less mass. Does this makes sense. These folks have upgraded their radiators. Where is TomTom when you need him __________________ GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V

08-18-2011	#5
FU Join Date: Mar 2004 Location: Found Member Posts: 4,346	Re: Under drive pullys. Got the Wood's pulley with an ATI damper on the 441.Fluidyne radiator too.....no heat problems here. __________________ Frank Urbo. NCM Lifetime member # 982 Registry Founding # 237

08-19-2011	#7
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,155	Re: Under drive pullys. Your not confused. I was. That was what I was pmed. The waterpump moves slower at idle __________________ GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V