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well i sanded the pulley down with a bead blaster. it had 120 grit in it. gave it a real rough finish. i decided not to try and cut the grooves in it like the reichard one. my luck i will have it all out of balance. i also shaved some of the grooves down. they were alittle bit taller than the way they were before. hopefully between bead blasting it and cutting the grooves down some it will be ok now. i'm going to still get a gatorback belt also. i'll let you guys know how it does probably monday or tuesday. hopefuly see a solid 10psi now.
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well after bead shooting it and getting a gatorback belt it doesn't slip anymore. i'm seeing 9si now. so i guess 2psi for free isn't bad, huh. i'm still getting some blowby though. i'm going to have to rig up a better catch can to help that problem i think. probably going to take the drivers side valve cover off and put a fitting on it to rig up another catch can on that side.
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well it was good while it lasted. took it in town to get some pizza and was only getting 5lbs. is there anyway to tell if the belt is really slipping. i though about taking a permanent marker and marking all in the grooves to see if it wears off from the slipping. starting to think that its not a slipping problem though. i might just go ahead and order the 110 bosch bypass valve to see if thats it.
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remove the bypass altogether just for a couple runs to see if you still have the boost problem (rubber caps hose clamped onto the 1" barb ends temporarily for testing). if so, order the better model, if not, then save your money & move to the next possibility.....if the bypass checks out fine then get some of the belt slip-aid dressing. ive seen some guys using it at the track with good results. if it helps, you know your problem, if not move to the next possibility.....process of elimination - start checking the free/cheap stuff untill you find the problem. just trying to throw some ideas out, hope this helps!
-justin
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Yeah do what justin said. Block the bypass ports and also I use Permatex belt grip in a tube when I am at the track.
Keep in mind though todd that with a NON cog drive blower there will always be some slip when you nail the throttle or let off of it from WOT. After a summer driving the front of my motor is covered in rubber dust but I still make a lot of boost.
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i realize that there will be some slipping but enough to rob me of 4 psi? i'm only spinning it about 4000rps more than i was before and i never had a hint of slippage at all then. i'm going to go work on it for a few now and try blocking off the bypass to see if thats the probelm. thanks for the tip justin. sometimes you just start getting frustrated and don't think to do simple obvious things like that. if it turns out to be slipping i'll probably just go ahead and order one though superchargersonline. i don't understand if it is slipping why its doing it. the grooves are cut exactly the same as before.
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jumped to conclusions too soon i guess. before i did anything i checked the belt and it was loose. i tightened it up and took it for a ride. nothing like 10psi and wanting to break the tires loose running 80mph. right when i was about to shift into 4th at about 5800 it started breaking the back tires looose :D . when i first put the belt on i must not have had it tight enough, plus i think it just stretched some from being new. well i guess i gained another psi, thats always a plus. now time to figure out what the noise is in the passenger rear. i have a feeling it is the torque box cracked. it makes a cracking noise when i accelerate and decelerate. i'll fill guys in on it in a few.
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looks like it is time for some new bushings in the rear. they are shot. that will be a good winter time project. probably go ahead and put in some reinforcements while i'm at it. well thanks for all your guys advice on everything.
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what was your pulley diameter agin before you fabbed it? 3.25"? im trying to figure the full amount difference in diameter to see what got you 3 psi. just for future reference when i decide to machine mine down. my revised 1k pulley is 3.5", i just cant remember off hand the original 1k size was..........i bet our loving that 10psi, makes the free mod all worth the effort! im hitting 9psi lately since the new found cold mornings & evenings here in florida. the nonhumid weather makes the car a different beast!:D
-justin
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it was 3" before and i took it to 2.75" 10 is probably all that i want out of it. right now i'm spinning it at about 50203rpms, which is still below the safe limit on it and good enough for me.
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slider, can I send you my pulley and a case of beer :D
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Gotta love 3 psi gain from 1/4" of pulley difference! Can't beat it....yeah 50k is a good impellar speed to stick with for longevity! Enjoy man!
-justin
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let me talk with the guy at work and see what he says about it. maybe he will cut a few for a small price. i'm not for sure when i will see him again though.
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HMMM.... this is a pretty slick trick slider. I'm gonna award you with the bud lite "real men of genious" award! MR pulley cutter downer guy!
SWEET!
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haha, thanks. next time i see ralph at work i'll ask him about cutting some more down. how many of you guys would be interested in getting them turned down by him? the only problem is that after you bead shoot them the black oxide finish is pretty much gone off of the whole thing. i just used some flat black spray paint on mine. let me know how many of you guys want to try this and i'll run it by him. i figure something around $20-$30 to turn one down for his time and that would include me shipping it back. this sound like a reasonable price?
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I'm in Slider, beats the heck outta our other alternatives.
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do you guys have the old style with the 3" pulley? i'm not sure about the new style with the 3.5" pulley. there might not be enough material to turn them down. there is just barely enough to get the 3" to 2.75".
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Well i'd only want to go 3.25 or maybe like a 3.125.
If i do it it'll be mid summer though if your still willing to do it.
Thanks
Hey you're from chillicothe? I live about an north of columbus.
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i'm actually about 25 minutes east of Chillicothe in Ray but i put down Chillicothe because nobody knows where Ray is at. Sometime when ever i go to Columbus we'll have to meet up.
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Todd as you now know a new belt when under the stresses of driving a supercharger will need to be tightened several times over the course 500 to a thousand miles. Even at that I still have to adjust it at every oil change or even less at times.
Glad to see you seemed to have her figured out.:)
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I have the old style, so I'd need mine turned to 2.75", lemme know when/if you can get it done & I'll ship ya my pulley :D
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i'm glad i have it figured out also. i took it into town earlier and i swear this thing gets faster every time i drive it now. i'm up to about 850 miles now since rebuild and i couldn't be more happier with it. can't imagine what it would be like if i would have had the money to put afr heads on it instead of the 351w heads. can't wait for dyno time to see what i'm making. i go into work tomorrow night so if i see ralph i'lll ask him about turning some down.
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Todd, did you ever get in touch with the machinist again??
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yeah, i was waiting to talk to the local machine shop up the road from me before i posted back. the guy at work doesn't want to do anymore. right now they are really watching everything that anyone does. the plant has been laying off quite a few people lately. we're down to about half the plant now. it's rca in circleville,ohio. i'll try and talk to the machine up the raod from me today sometime and see what they say.
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Cool deal, lemme know what you find out I'd appreciate it greatly.
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well the guy at work might end up and do them. he's going to let me know for sure within the next couple days. i'll keep you guys informed.
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he said that he would go ahead and cut them down for you guys. how many of you want to do this? the only bad thing is that he would have to have them by wednesday to get them done before the xmax shutdown. so it probably won't be until the new year before he will be able to get them done. does $35 sound ok with you guys for getting it done?
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Todd, Drop me an e-mail as to where to send my pulley.
searly@camalott.com
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$35 sounds great todd! I wanna wait till summer to see how slow my car is gonna be on the pullies i got first.;)
VERY COOL!
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the only thing about this is that he is wanting to try and get them all at around the same time so that while he has the lathe setup he an get them all done. after the first of the year when he starts back i'll get back with you guys and try to work something out as to when everyone can send them to me. just looks like you 2 guys so far though.
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Todd, just let us know. We should be able to drum up a couple more by the time it is said and done...if that's a good thing :D
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the more the better. once he has the lathe setup it won't take him too long at all turning them down.
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Well sorry to get in on this late guys. With being busy at work and the 2 month old son terrorizing the house I've been pretty busy. Since I already have the 2.75" pulley on my car, I have my tock 3" pulley from the older Novi sitting here on my computer desk as a paper-weight. Since its is the holidays and all, if somebody wants this so they don't have to take their pulley off and have the car down while its being milled, send me an email at chagen@fastwave.biz and I will ship it to you. I'd prefer it to be somebody who could really use the extra pulley, but I guess we'll do first come first server. I have a Fed-Ex account so I'll ship it out myself. No charge. Happy holidays to everyone if I don't remember to tell you when they get here!
Chris