HELP :( plz

i just finished up my novi 1k install, and well, took it out and im only seeing 1 pound and every once in a while ill get lucky and get 3 but for just a split second, thought maybe the by-pass valve so i went ahead and took it off and pluged it, thought maybe belt was slipppin, but its not and its tight, im out of ideas, only other thing i can think of is maybe i have a underdrive crank pulley on my car, what size is the stock pulley ?? plz help, i know the boost gauge is hooked up correct and i have no vacum leaks.

ok i measured my crank pulley and it appears to be around 4 3/4 inchs, is this stock, or is it underdrive, and is this why im seeing hardly no boost

Which NOVI 1000 do you have : The single belt or the twin belt ?
If its the single belt set-up then you're crank pulley should measure 6" across
at the minimum. If you have a under-drive pulley you WILL-NOT be able to make any boost.
If its the twin belt set-up then make sure all you're clamps after the blower are tight......also verify that your boost guage is pulling its vacuum/boost reference from the upper intake somewhere.

As frank said if you have a single belt kit you are gonna need a new crank pulley. I suggest an F 150 pulley. If you go that route you can do a search and find out all sorts of info.:)

I have a F-150 crank pullie for $20.oo if you want it.

o thank god, i hope this is it, i have the single belt setup and the crank pulley is only 4 3/4, and frank i may be very intrested in the pulley

If he passes on the pulley Frank, I want it. :)

Quote:

---

Originally Posted by 89ntrcptr

o thank god, i hope this is it, i have the single belt setup and the crank pulley is only 4 3/4, and frank i may be very intrested in the pulley

---

Yup this is why you are seeing next to no boost. Stock pulley is 6", F-150 is 6.5"

As is stands now, here's what you are spinning the blower to at 6k RPM's

4.75" pulley- 33630 rpm's
6" - 42480 rpm's
F-150- 46020 rpm's

As you can see, you are leaving nearly 10k rpm's on the table compared to a stock 6" pulley.

well i should find out today, should be getting my stock pulley in the mail today, ill throw it on and go buy a new belt and give it a try,

[whispers] get the f-150 crank pulley :) [/whispers]

only if i had my fuel system upgraded :( and i didnt get the pulley like i was supose to either :(

I can beat any price on the F-150 crank pulley for $19.95 :D Just kidding. Seriously, Dan, if Frank sells his and you still need one, let me know cause I have my F-150 laying around since I am working on getting this 8" one to fit. If Frank doesn't sell his, I don't want to take his sale away from you. You guys work it out and let me know. But I do have mine and will sell it if you know somebody who wants it.

Chris

Quote:

---

Originally Posted by Chris_H

I can beat any price on the F-150 crank pulley for $19.95 :D Just kidding. Seriously, Dan, if Frank sells his and you still need one, let me know cause I have my F-150 laying around since I am working on getting this 8" one to fit. If Frank doesn't sell his, I don't want to take his sale away from you. You guys work it out and let me know. But I do have mine and will sell it if you know somebody who wants it.

Chris

---

Double post, it's too early in the morning to be doing this :p

Quote:

---

Originally Posted by Chris_H

I can beat any price on the F-150 crank pulley for $19.95 :D Just kidding. Seriously, Dan, if Frank sells his and you still need one, let me know cause I have my F-150 laying around since I am working on getting this 8" one to fit. If Frank doesn't sell his, I don't want to take his sale away from you. You guys work it out and let me know. But I do have mine and will sell it if you know somebody who wants it.

Chris

---

I sent him a M.O. last week so my F150 pulley should be on it's way!! In addition to that, I ordered a 2.75" blower pulley. I'm hoping those two pulley's will make close to 10 psi on a stock motor. Thanks for the offer though Chris. Someone will see you have one for sale and jump on it.

well i put the stock pulley one and im only gettin 3psi now, and it takes a bit for it to build up. What gives? if you have any ideas let me know THX

89ntrcptr, just out of curiosity, where do you live, and what is your elevation? I know when I first installed my kit, I was only seeing about 4psi. I am at 3,900' and the track is at 4,100'. The thin air definately makes a huge difference. When I installed my 2.75" blower pulley and powerpipe, I didn't even get a full psi out of it. It took me installing the F-150 pulley to get that thing close to 7psi on a nice day. Other than that..... :confused:

Chris

well never realy thought about that, but i live in southern MN, i believe the elevation is 1,162 surveyed, that sound right? so this wouldnt be the prob correct?

no, to me thats not enough to be causing the lack of boost you are seeing. You sure you have checked all your connections, making sure there are no leaks anywhere?

Chris

checked everything, no leaks, is it possible i have the boost gauge hooked to the wrong spot, i hooked it to the vacum tree on the drivers side firewall/

well today i tightend the belt even more, took it out, 1st gear with the c4 auto, nail it, tach jumps instant 5psi sliding all over, 2nd gear still spinning 5 psi, then 3rd noticed a hint of detonation so i backd out of her and put it away for the day, Im just so glad its workin now, also i removed the screen in the stock maf, could this be why i got the boost?

screen should have no effect on boost amount. sounds to me like you found your culprit. if you found 2 more psi from tightening the belt than that was one of your major problems. what rpm are you guaging your boost at? pick an rpm & stay with it while checking boost #'s. whats your max rpm? whats your max boost at this rpm? are you noticing any boost fluctuation?

-justin

Quote:

---

Originally Posted by mygt8a4re

screen should have no effect on boost amount. sounds to me like you found your culprit. if you found 2 more psi from tightening the belt than that was one of your major problems. what rpm are you guaging your boost at? pick an rpm & stay with it while checking boost #'s. whats your max rpm? whats your max boost at this rpm? are you noticing any boost fluctuation?

-justin

---

tell ya the truth i never realy payed attention, had to watch the tach cuz it kept wanting to fly well past 6k very quick, but it seems like u have to be in a low gear b4 i can make boost, like if im in D and at 2,500 it dont realy make boost, have to drop it down and nail it and then i get the boost

yes, thats correct. you have to spool up the blower hard(high rpms) to make compressed air. try checking your boost level at a particular rpm from here on out. its easier to see as you are in a higher gear(3rd) since the rpms move up slower. floor it in 3rd when rolling & let the boost build slowly. this is the best way to see it climb fairly slow & monitor it. check to see if its fluctuating & be sure it stays consistent at that rpm............tighten the belt even more, lol! i bet you cn get another psi or so out of it! they also make a good belt sticky spray just for this reason. really helps with the single belt units............

-justin