I deleted the entire a/c system and ran a 350k5 belt and WOW! Throttle response seems way quicker,anyone else do this and feel an increase in power???
15.2@89mph 2.171 60ft. 9.830 1/8 R.I.P. "LULU"
i did the same thing and it really helps out, what motor do you have
2.4,rest of mods in profile
15.2@89mph 2.171 60ft. 9.830 1/8 R.I.P. "LULU"
I had to disconnect my ac compressor because it was rattling like forks in a blender. I didn't notice anything though. it's still slowwwww.
____________________________
Dracula called, and he's coming tonight!
so how does it actually help i mean when your ac is off the ac clutch is disengaged so your just spinning a free spinning pulley nothing else.
But i haven't seen or done it iam just curious.
i also used the belt to delete my ac.. i didnt really see a increase but that also could of been cause my motor mounts are shot... but on a plus i dont have that squeeling noice anymore
well I took out the compressor,condensor,all the lines and ran a 350k5 belt,I have the shiftplus and the urethane upper motor mount insert and you figure what...25-30lbs of weight out of the front,so after driving it seems a little quicker off the line,at least that's what my butt dyno tells me
15.2@89mph 2.171 60ft. 9.830 1/8 R.I.P. "LULU"
it pry feels quicker ONLY for the fact that you ditched the weight. i dont see how the AC compressor takes any juice while its not being used.. like paul said, its got a clutch that dis-engages while not in use. BUT, every little bit helps. good job.
The real reason for doing this is that I sold the compressor because I needed the money and I have a vert.But I understand what you guys' are sayin'
15.2@89mph 2.171 60ft. 9.830 1/8 R.I.P. "LULU"
you're car wieghs 300lbs more than a normal cav. hey if you have a convertable... you don't really need a/c... it would just be silly
____________________________
Dracula called, and he's coming tonight!
ok, well i guess you would gain that much of the weight of the spinning pulley off the belt.. which would help... but not much. its all good tho!!!
The best gains will come from the 2.3 Mani, t.b., Aem alt. pulley and alum. underdrive pulley and I know you(zyaaa) have been having some issues with the AEM,hell I went out to a guy from JBOMs house and we both tried everything we could to get the stock alt. pulley off and it wasn't happening.
15.2@89mph 2.171 60ft. 9.830 1/8 R.I.P. "LULU"
yeah that alt pulley is PITA to get off. i had to use a massive wrench like 2 feet long lol
my alt, was bad that why i was having the troubles. BUT i really dont think the aem and an UD crank pulley should be used together. you should only use one or the other, otherwise your going to have major charging issues.
it would be possible in a car with zero power options etc, which is good for me since my 97z24 had less options then the average base model lol, so the aem and rsm UD crank pulley will go on it.
So the use of the underdrive pulley would be more beneficial than the AEM alt. pulley right?
15.2@89mph 2.171 60ft. 9.830 1/8 R.I.P. "LULU"
BIGGSZ24 wrote:So the use of the underdrive pulley would be more beneficial than the AEM alt. pulley right?
IMHO... yes it would be. and since you deleted ur AC, the only things you be underdriving are the tensionor and the alternator lol
i also dont think theres even a noticable difference between stock size and UD power wise, md ld9 got i do believe 8 whp with the use of his pulleys over stock.. his are stock sized.. crank and alt's
Yeah I know I have to do somethin,I don't have the money for the turbo yet and I'm only running a small shot of nitrous,and I was so pissed today,I raced a modded neon(non-Srt)on a closed road
today and we both spun really bad off the line(he had a stick)and the road was really wet so I couldn't hook and he did hook before I did and even when I sprayed I was still a car length behind him,had I hooked I would've beat him.I know I need every little mod I can get being a vert.
15.2@89mph 2.171 60ft. 9.830 1/8 R.I.P. "LULU"
this is an old thread, but I'd like to bring it back to get one question answered: what size is the smaller belt you are using to delete the A/C?
some part of my pully/ clutch assy. has been squealing sometimes and I don't want to spend hundreds of dollars to replace the compressor. I just don't want the pully to lock up on me while I'm driving. I hardly use the A/C, even when it's working.
LD9 F23 FTW!!
z yaaaa....no
The Unorthodox
under driven pulley works well with the AEM
over driven pulley. The AEM pulley was designed to be used with the Unorthodox pulley. Hell you even use the stock belt. This was from an AEM rep.. when I asked about the bore size for my alternator pulleys. They use to offer two sizes....now only offer one.
The Unorthodox pulley slows down the alternator, and the AEM pulley speeds it back up....to near stock Speeds.
Toyotaz87 the belt should be 350k5 for a LD9......a 345K5 for an Ecotec if I remeber correctly.
PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO
Just seems like a waste of A/C to me, you'd have to be doing a full lightweight setup (gutting the car) for it to really be worth the effort. Plus, for those who don't watch mythbusters, its more effective above 50mph to run the A/C than it is to roll the windows down (the incoming air creates more drag on the car than the A/C does on the engine) so I'd just leave it be.
_________________________
-MD- LD9 wrote:z yaaaa....no
The Unorthodox under driven pulley works well with the AEM over driven pulley. The AEM pulley was designed to be used with the Unorthodox pulley. Hell you even use the stock belt. This was from an AEM rep.. when I asked about the bore size for my alternator pulleys. They use to offer two sizes....now only offer one.
The Unorthodox pulley slows down the alternator, and the AEM pulley speeds it back up....to near stock Speeds.
sorry mike, but i really must disagree. i couldnt get 3 different brand's of stock sized belts to work the the aem and the RSM crank pulley, im not sure if the UD and RSM are the same size, but they gotta be decently close and the belts i tried were WAY off.
also, think about it. you put a smaller pulley on a S/C to create more boost, a bigger creates LESS boost, making the S/C spin SLOWER. same goes with the AEM alternator pulley, its LARGER than stock so it SLOWS the alternator down.
idk how anybody could use the aem alt and and UD crank pulley, my car BARELY charges below 1000 rpm with the RSM underdrive crank and a 180 amp alternator and a big 3 upgrade.
think about it, how many ppl have you actually heard of that is using an UD crank pulley and the AEM alt pulley and NOT having charging issues. like ive said before, im almost garenteeing that my issues are because my car is power EVERYTHING, you put that combo on a car with zero options, it MAY work the way it should.
unfortunatly i went with that exact statement and believed you mike when i bought all my parts this spring, it didnt work for ME.
Edited 2 time(s). Last edited Tuesday, July 24, 2007 8:55 AM
If the AEM alternator pulley is larger than the stock as ZYAAA says then it will spin the alternator slower. You would need a smaller than stock alternator pulley to spin the alternator faster. Just as you would use a smaller pulley to spin the a supercharger faster.
FORGET GIRLS GONE WILD WE HAVE GOVERNMENT SPENDING GONE WILD!
z yaaaa wrote:sorry mike, but i really must disagree. i couldnt get 3 different brand's of stock sized belts to work the the aem and the RSM crank pulley, im not sure if the UD and RSM are the same size, but they gotta be decently close and the belts i tried were WAY off.
also, think about it. you put a smaller pulley on a S/C to create more boost, a bigger creates LESS boost, making the S/C spin SLOWER. same goes with the AEM alternator pulley, its LARGER than stock so it SLOWS the alternator down.
idk how anybody could use the aem alt and and UD crank pulley, my car BARELY charges below 1000 rpm with the RSM underdrive crank and a 180 amp alternator and a big 3 upgrade.
unfortunatly i went with that exact statement and believed you mike when i bought all my parts this spring, it didnt work for ME.
The RSM pulley is not the same size as the Unorthodox pulley. Unorthodox is smaller. That being the case. An unorthodox pulley and AEM pulley will give a stock belt..........................what I messed up is a follows.
Now the analogy of the supercharger is true.
Heres the proof.
Z Yaaaa I'm sorry.
PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO
So the Unorthodox and AEM would be the worst for charging.
~~Bows head and slowly walks away.~~
Sorry to any one I told wrong.
PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO
hey man, screw it. what you've done for this community is to be commended.
we ALL make mistakes, i do it all the time.
that gragh really put it into perspective for me, no wonder my freakn car wouldnt charge. im interested in seeing how much smaller the unorthodox crank pulley is than the RSM underdrive. i have pics of the stock sized rsm vs the rsm UD somewhere...
i'll have to dig them out.
Edited 2 time(s). Last edited Tuesday, July 24, 2007 11:46 AM
