Stop the Madness! 2.8" pulley and 42lb. injectors is No Good!
12-09-2006 | 10:17 AM
#201
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Joined: 07-06-06
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From: Central IL
it was down to 10 lastnight and normally i get 18-20lbs, after it was warmed to normal temp and went straight to 20lbs and wanted to keep going, i let off to nervous with stock headgasket on there lol
01-29-2007 | 12:47 AM
#206
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Joined: 01-25-06
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From: dearborn, MI
Ya... if you do get a pulley from nherbst454 you will have to grind down the pulley bolts from the stage 2 kit. I ordered it, it looked great. Started the car and the bolts were scraping the super charger. So I have my stage 2 pulley back on. I'd say order some extra bolts like I’m going to b4 you order it.
01-29-2007 | 08:49 AM
#207
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From: CT
Ya... if you do get a pulley from nherbst454 you will have to grind down the pulley bolts from the stage 2 kit. I ordered it, it looked great. Started the car and the bolts were scraping the super charger. So I have my stage 2 pulley back on. I'd say order some extra bolts like I’m going to b4 you order it.
There is a pic of it installed in my garage.
02-06-2007 | 06:35 PM
#209
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Joined: 04-19-06
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From: Youngstown, Ohio
i first jumped on this band wagon when everyone said swapping the 2.8 pulley would work fine with gm stage 2, so i just went ahead and did it. Then as soon as I got it done alot of people came out and said its bad for the car and stuff. So my problem is I have a 2.8 pulley with gm stage 2, and it has been like that since august, i have had no problems what so ever, but i everyone says its bad to have, so should i put the 3.0 pulley on, just curious
02-06-2007 | 09:44 PM
#211
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From: soon to banned as I am from MANITOBA?
All I know is that I have been running a 2.8" with 42's for a couple months now on a custom tune. Everything was running great, no KR at all, then the weather got cooler. It's still getting into the 80's around here, but when I recently went to Atlanta, it was dropping below freezing at night. 4-5 KR above 4k rpm's, sometimes even 2-3 KR with light accelleration at only 2500 rpm's. Then there was the P0103 (lean) that I had to keep clearing. Sure, it doesn't help that when my car was tuned it was 98 F in the shop, but I'm not taking any chances as this is also my daily driver. I've got 60's going in with a new custom tune this Tuesday, hopefully drivability won't suffer too much.
As some mention going with 50# or 55# injectors, are there any good recomendations, would they make a better difference than the 60's I already have considering that I don't plan on going any smaller than a 2.8" pulley? (don't want to machine the snout for a 2.6" and 2.7" isn't going to be enough of an increase for me to drop money into a another hub and pulley plus installation)
As some mention going with 50# or 55# injectors, are there any good recomendations, would they make a better difference than the 60's I already have considering that I don't plan on going any smaller than a 2.8" pulley? (don't want to machine the snout for a 2.6" and 2.7" isn't going to be enough of an increase for me to drop money into a another hub and pulley plus installation)
I got this code when the car was stock x1 and then when I put in a K&N drop in filter x1 (no oil got on the maf-t either), many times with GMS2 and now I can get it on just as often with GMS2 and 2.79. I dont go over 6000 rpm until I get a custom tune any way to be safe. with a tune and AEM you can set it up for 13:1 AFR to get a 12:1 AFR. Why? AEM is good and reliable in its operartion but consistently our local tuner finds that is reads leaner than actual (that is guage reads 13 and actual is 12). If you set up the car accordingly you can run your 42lbs I am told and the DC's are below 90%. My 60's will be on there way soon either way. IT IS A MATTER OF OPINION. and I would like to know are people blowing up or do there motors run like crap after awhile with a bent rod or something? I would expect a piston blowing a whole in it as a matter complete failure in many cases.
02-06-2007 | 09:56 PM
#212
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Joined: 01-27-06
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From: eh
po103 is not a lean code. I got this code when the car was stock x1 and then when I put in a K&N drop in filter x1 (no oil got on the maf-t either), many times with GMS2 and now I can get it on just as often with GMS2 and 2.79. I dont go over 6000 rpm until I get a custom tune any way to be safe. with a tune and AEM you can set it up for 13:1 AFR to get a 12:1 AFR. Why? AEM is good and reliable in its operartion but consistently our local tuner finds that is reads leaner than actual (that is guage reads 13 and actual is 12). If you set up the car accordingly you can run your 42lbs I am told and the DC's are below 90%.
My 60's will be on there way soon either way. IT IS A MATTER OF OPINION. and I would like to know are people blowing up or do there motors run like crap after awhile with a bent rod or something? I would expect a piston blowing a whole in it as a matter complete failure in many cases.
I got this code when the car was stock x1 and then when I put in a K&N drop in filter x1 (no oil got on the maf-t either), many times with GMS2 and now I can get it on just as often with GMS2 and 2.79. I dont go over 6000 rpm until I get a custom tune any way to be safe. with a tune and AEM you can set it up for 13:1 AFR to get a 12:1 AFR. Why? AEM is good and reliable in its operartion but consistently our local tuner finds that is reads leaner than actual (that is guage reads 13 and actual is 12). If you set up the car accordingly you can run your 42lbs I am told and the DC's are below 90%. My 60's will be on there way soon either way. IT IS A MATTER OF OPINION. and I would like to know are people blowing up or do there motors run like crap after awhile with a bent rod or something? I would expect a piston blowing a whole in it as a matter complete failure in many cases.
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