98 C5 with F-2 PICS......(56k good luck)
11-09-2007, 12:30 AM
#22
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Well not to be an *** but what were you expecting out of a blower that takes 300hp to spin. I am spinning it at 55000rpm and max is 65000rpm. I didnt think 1200 at 5000 rpm out of a 408 was that bad, the other two F2 cars put low 1200's down with 540ci big blocks. Its a blower car not a turbo car takes a lot more power to make power.
11-09-2007, 12:33 AM
#23
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You must work at MAS, Mark is a awsome guy, had a lot of fun partying with him in vegas. My friend and I were the ones that brought him and Jesse ( 70 Chevelle) out to Sema. Both very Nasty cars, couldn't have asked for a better group of guys.
11-09-2007, 12:39 AM
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The problem with the cog set up is that ATI built and sold a cog set up for the Y-body and didnt bother to see if there was a belt that fit. It also cant handle a F2. It broke off the idler pulley between the crank and PS pump(at part throttle) then broke the center out of the waater pump pulley, then broke the alternator bracket. Took a lot of Fab to make it work. The F2 is one mean blower.But after all that work I couldn't see running anything smaller because that thing sound EVIL!!!
11-09-2007, 02:39 AM
#25
if you guys get together sometime this winter or in the spring i seriously need to know. I am heading down there for sure in the spring to get a little dyno time anyway, and i would like to see these works of art.
BTW, i found it quite funny how many cars from MN made it to the finals (including Bill, fargo/MN close enough) and hung in there with guys that seemed to have money just rolling into their cars.
Gary
BTW, i found it quite funny how many cars from MN made it to the finals (including Bill, fargo/MN close enough) and hung in there with guys that seemed to have money just rolling into their cars.
Gary
11-09-2007, 07:01 AM
#26
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The problem with the cog set up is that ATI built and sold a cog set up for the Y-body and didnt bother to see if there was a belt that fit. It also cant handle a F2. It broke off the idler pulley between the crank and PS pump(at part throttle) then broke the center out of the waater pump pulley, then broke the alternator bracket. Took a lot of Fab to make it work. The F2 is one mean blower.But after all that work I couldn't see running anything smaller because that thing sound EVIL!!!
WOW-I can beleive that but does the belt still have to be that tight for the cog? I'm really thinking about going cog next year as well but with a F1R, so where did you end up finding belt that fits? Badass setup BTW-gotta love the scream of a F2!!!!!!
11-09-2007, 08:30 AM
#29
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The F-2 took so much to spin and the 30mm belt was not ideal for that size blower but yet that was what the pulley kit was made for. I think MoreJuice will agree that the one good thing from ATI was the Super Pulley. It works great and I feel is the key to this set up working with such a large blower. The belt was still slipping, I know it is hard to believe with a cog but it was shredding teath off, now some of that could have been due to some of the stock brackets flexing but in either case the belt was tight. I don't remember where he got the belts from but now its alot shorter because all its running is the blower, crank, and water pump.
11-10-2007, 04:34 AM
#30
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NICE setup "MoreJuice"! I saw the video's and picture's of your stuff at SEMA with my guys Mark and Rod. Sorry to hear about the head gasket failure. That thing is cooking out some HP! I'm working on a race F-2 kit for a buddy and myself right now, but curious as to how you got that F-2 on there. Is that a modified GTO bracket or a modified Y-body bracket setup?
After talking to Sergio today, the 30mm rubber(I assume your running rubber) belt wont live too well on the deal depending on how long the belt is. You may either have to go wider or kevlar. Kevlar, though, you cant back bend. I think I am gonna just stick with a 75mm Bando. I assume you guys are around a 1200 belt? If so thats the trouble. You start getting longer like the 1600 a standard setup runs then the belt speed comes down. Another thing is that rubber starts shreading teeth where the kevlar just snaps possibly taking parts with it.
The F-2 took so much to spin and the 30mm belt was not ideal for that size blower but yet that was what the pulley kit was made for. I think MoreJuice will agree that the one good thing from ATI was the Super Pulley. It works great and I feel is the key to this set up working with such a large blower. The belt was still slipping, I know it is hard to believe with a cog but it was shredding teath off, now some of that could have been due to some of the stock brackets flexing but in either case the belt was tight. I don't remember where he got the belts from but now its alot shorter because all its running is the blower, crank, and water pump.
After talking to Sergio today, the 30mm rubber(I assume your running rubber) belt wont live too well on the deal depending on how long the belt is. You may either have to go wider or kevlar. Kevlar, though, you cant back bend. I think I am gonna just stick with a 75mm Bando. I assume you guys are around a 1200 belt? If so thats the trouble. You start getting longer like the 1600 a standard setup runs then the belt speed comes down. Another thing is that rubber starts shreading teeth where the kevlar just snaps possibly taking parts with it.
11-10-2007, 06:00 AM
#31
I was kinda curious about your head gasket set up even though it blew it made it a long way LOL! I know others have survived at that level, but not a ton. !/2" head studs looks like although it it hard to tell in the photo's. Looks good though great fabrication.
11-11-2007, 11:24 AM
#33
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The problem with the cog set up is that ATI built and sold a cog set up for the Y-body and didnt bother to see if there was a belt that fit. It also cant handle a F2. It broke off the idler pulley between the crank and PS pump(at part throttle) then broke the center out of the waater pump pulley, then broke the alternator bracket. Took a lot of Fab to make it work. The F2 is one mean blower.But after all that work I couldn't see running anything smaller because that thing sound EVIL!!!
I wanted to ask why you guys didn't use a tall deck (ETP or AFR) head in order to avoid the lifting problem ? I have gone as far as to modify my block and heads for 9/16 studs to ensure I won't have those issues after 20psi.
If you check out the Corvette Forum, we have a member that has built a COG application on his C5 you may be interested in. The belt looks to be about twice the size. With a slight modification to the p/s rack, he managed to make it all fit.
http://forums.corvetteforum.com/show....php?t=1708437
He had some fella's down in Cali make up some customs pulley's for his setup
http://www.blackmountainprecision.com/
11-11-2007, 11:34 AM
#34
if thats a stock head casting car, im amazed it held on for the first pulll, would like to see if it could make any passes and not spill a gallon of coolant on stock head
11-12-2007, 07:19 AM
#36
Here are a few pics of MoreJuice's 98 C5 at SEMA this last week for the Dynomax power to the wheels contest. Top 10 finalists made it to the show in Vegas.
It has a 408 with an F-2. He didn't win but made a good effort. He made 1200rwhp at 5000rpm at about 30psi and a 200 shot before it ran out of fuel. Unfortunately it popped a gasket and made a **** sandwich. Other than sounding like a harrier jet its quite the sleeper. The winner had a 64 Rambler with a TT 427 that made 1640rwhp.
It has a 408 with an F-2. He didn't win but made a good effort. He made 1200rwhp at 5000rpm at about 30psi and a 200 shot before it ran out of fuel. Unfortunately it popped a gasket and made a **** sandwich. Other than sounding like a harrier jet its quite the sleeper. The winner had a 64 Rambler with a TT 427 that made 1640rwhp.
any ideas who built the 427 TT???
thanks Chris.
11-12-2007, 08:40 PM
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11-12-2007, 08:52 PM
#38
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As far as the Rumbler, not sure who did the engine work but Brian did all the work on the car himself. Very talented guy, that car is SICK!
11-13-2007, 10:41 AM
#40
The problem with the cog set up is that ATI built and sold a cog set up for the Y-body and didnt bother to see if there was a belt that fit. It also cant handle a F2. It broke off the idler pulley between the crank and PS pump(at part throttle) then broke the center out of the waater pump pulley, then broke the alternator bracket. Took a lot of Fab to make it work. The F2 is one mean blower.But after all that work I couldn't see running anything smaller because that thing sound EVIL!!!
How are you able to get that much boost? I have the same blower super pulley but it is 4.5'' in diameter and I thought it was the only size thay make. I am getting a overdriven crank shell made but I still wont see as much boost as Id like. I would like to max out the blower but will be far from it my blower is only a F1R 5:1 stepup ratio.Any suggestions?