Gone
11-11-2004, 02:18 AM
#18
33%? Is that aggregate or net?
11-11-2004, 10:43 AM
#19
Drifting
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Ive seen the part, but no...should I?
Is it a Dayco Polycog 5060436 belt that you are refering to as the smaller one? You may also want to check out the Goodyear Gatorback belts. I've found them in some sizes that I can't find in the Dayco. IIRC Autozone has them. If you are going to experiment with pulley sizes you'll need a variety fo belts to choose from.
Gtech messed up and the timer never stopped counting?
That looks nice....
Andy K
11-11-2004, 03:21 PM
#21
Time to work 33% more I guess. Or do something in your spare time to add 33%. Make it 50.
11-11-2004, 03:31 PM
#22
Drifting
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Yep the Dayco Poly cog part # is broken down by:
50 Style of belt, poly v or ribbed
60 Number of ribs
436 length of belt 43.6" in this case
The Gatorback belts have a similar part#. Here is a link to the Gatorback part # description. The Gatorback belts are aout $10 less than the Dayco but are supposed to be the prefered belt for turning a SC. Both are good but it's really down to finding the right length. I've found different lengths between 430 and 445 for each brand.
Are you turning the 2.5" or 63mm pulley with a 5060445? If so I imagine you have quite a bit of slip. The 63 mm pulley should make around 8psi.
HTH,
Andy K
50 Style of belt, poly v or ribbed
60 Number of ribs
436 length of belt 43.6" in this case
The Gatorback belts have a similar part#. Here is a link to the Gatorback part # description. The Gatorback belts are aout $10 less than the Dayco but are supposed to be the prefered belt for turning a SC. Both are good but it's really down to finding the right length. I've found different lengths between 430 and 445 for each brand.
Are you turning the 2.5" or 63mm pulley with a 5060445? If so I imagine you have quite a bit of slip. The 63 mm pulley should make around 8psi.
HTH,
Andy K
11-11-2004, 05:11 PM
#24
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Hey Tom,
I put that down there as a catch all for pictures and such that I post concerning my systems. It is a deterent to help guard against the unaurthorized and negative use of such.
While anything that one writes or records has inherent copyright, without the mark one is less likely to have a case against someone that uses it w/o permission. At least this is what I'm told.
Basically if someone like Robert Hack were to use a picture of my system to rip someone off, I/(we,including the victim) would have a better chance when taking them to court.
Would it work? I don't know but it was easy enough to put the mark down there.
I hope Tony's thread dosen't get hijacked on this topic. Sounds like a good discussion for the off topic forum though.
Andy K
I put that down there as a catch all for pictures and such that I post concerning my systems. It is a deterent to help guard against the unaurthorized and negative use of such.
While anything that one writes or records has inherent copyright, without the mark one is less likely to have a case against someone that uses it w/o permission. At least this is what I'm told.
Basically if someone like Robert Hack were to use a picture of my system to rip someone off, I/(we,including the victim) would have a better chance when taking them to court.
Would it work? I don't know but it was easy enough to put the mark down there.
I hope Tony's thread dosen't get hijacked on this topic. Sounds like a good discussion for the off topic forum though.
Andy K
Last edited by GoRideSno; 11-11-2004 at 08:05 PM.
11-11-2004, 11:08 PM
#25
Rennlist Member
Andy, Tony, et al:
Are you using more than 91/92 octane gas for your dyno runs? if so, what octane are you using?
And do you need to run race gas all the time? Has anyone run pump gas all the time and at what boost?
Marc
DEVEK
Are you using more than 91/92 octane gas for your dyno runs? if so, what octane are you using?
And do you need to run race gas all the time? Has anyone run pump gas all the time and at what boost?
Marc
DEVEK
11-12-2004, 12:16 AM
#26
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@ marc,
I run 91 pump gas all the time. Any of the twin-screw kits putting out 400rwhp can run 91 pump as well.
Also, do you have any more info on the devek radiator + spal fan package?
I run 91 pump gas all the time. Any of the twin-screw kits putting out 400rwhp can run 91 pump as well.
Also, do you have any more info on the devek radiator + spal fan package?
11-12-2004, 12:52 AM
#27
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Marc,
IIRC the last time I dynoed my car it was on 93. I have never dynoed it on race gas or anything higher than 93. When I was in CA I only used 91 octane when driving. The only time I have used race gas was at the track. I wouldn't have done it then but it was 105 degrees out and I wanted some extra protection.
In PJ's 87S4 I did 1/4mi runs on 91 sucking hot air from under the hood at about 8 psi on 91 octane.
Tony mentioned at one point Vegas has the same crappy gas as CA has so I'll bet he did his runs on 91.
As Mike mentioned he has run the non-intercooled Jag/Eaton setup all year at 4.5 psi every day on cheap 91 octane. This was really a test as he: sucked hot air from under the hood, didn't use a by-pass valve, didn't have a RRFPR, and is a 20 y/o with a lead foot. He recently did a compression test and it pretty much matched our figures from when we tested it before the install.
There are 8+ Supermodels running and not a blown head gasket.
HTH,
Andy K
IIRC the last time I dynoed my car it was on 93. I have never dynoed it on race gas or anything higher than 93. When I was in CA I only used 91 octane when driving. The only time I have used race gas was at the track. I wouldn't have done it then but it was 105 degrees out and I wanted some extra protection.
In PJ's 87S4 I did 1/4mi runs on 91 sucking hot air from under the hood at about 8 psi on 91 octane.
Tony mentioned at one point Vegas has the same crappy gas as CA has so I'll bet he did his runs on 91.
As Mike mentioned he has run the non-intercooled Jag/Eaton setup all year at 4.5 psi every day on cheap 91 octane. This was really a test as he: sucked hot air from under the hood, didn't use a by-pass valve, didn't have a RRFPR, and is a 20 y/o with a lead foot. He recently did a compression test and it pretty much matched our figures from when we tested it before the install.
There are 8+ Supermodels running and not a blown head gasket.
HTH,
Andy K
11-12-2004, 01:18 AM
#28
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Marc,
I run only premium pump gas in my supercharged 928. I have had the supercharger on the car for about 3 years and 20K miles, and am running around 8psi. So far I have not had any knocking, pinging, or detonation issues (knock on silicone impregnated aluminum.)
Randy
87 S4 Auto Black/Black
Supercharged & Intercooled
I run only premium pump gas in my supercharged 928. I have had the supercharger on the car for about 3 years and 20K miles, and am running around 8psi. So far I have not had any knocking, pinging, or detonation issues (knock on silicone impregnated aluminum.)
Randy
87 S4 Auto Black/Black
Supercharged & Intercooled