2.0L LSJ Performance Tech 205hp Supercharged SS tuner version. 200 lb-ft of torque.

Stage kit questions??

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Old 05-08-2012, 05:09 PM
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Stage kit questions??

Hey guys will someone help me with this? Question is can you run a 2.8 pulley without cams?? Turbo Tim at zzp says I'll need cams to run below a 2.8 pulley and he says the 2.8 is one size too small and I will need cams with It.. It doesn't make sense to me cause all the stuff I've read about these kits says that if you run a 2.7 or lower you will need cams! Someone help
Old 05-08-2012, 05:22 PM
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tons of people are running a 2.8 or lower without cams, myself included
Old 05-08-2012, 05:23 PM
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Im running a 2.8 without any issues at all. You can run the block stock on any pulley but if your are building the engine for power, adding cams is always a good idea. Figuring out if you are going to keep the car supercharged or go turbo swap will also help your decision on how you mod the car.
Old 05-08-2012, 05:23 PM
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yea ur fine just get 2/8 and 60#, 2 degree colder plugs and tune and ur good to roll
Old 05-08-2012, 08:11 PM
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Originally Posted by riceburner
yea ur fine just get 2/8 and 60#, 2 degree colder plugs and tune and ur good to roll
I was actually wanting to go with 50# Siemens injectors.. That shouldn't max the injector so I'm good! Thanks guys I figured Tim was mixed up on that..
Old 05-08-2012, 08:12 PM
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Originally Posted by 1AJeremyD
Im running a 2.8 without any issues at all. You can run the block stock on any pulley but if your are building the engine for power, adding cams is always a good idea. Figuring out if you are going to keep the car supercharged or go turbo swap will also help your decision on how you mod the car.
How much boost do you make with the 2.8 pulley on your car??
Old 05-08-2012, 10:11 PM
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im running a 2.7 just fine on my stock internals, no cams. to make better use of the extra boost cams will help, but its going to affect driveability.

dont worry, toss the 2.8 on there with 60lb injectors. im not sure why zzp is now insisting cars cant idle correctly on 60s, my car idles great after i took their crappy tune out that gave me idle issues, warm up issues, and set lean codes. they sent a couple flashes to me to get full throttle correct then ignored me. i tuned the car myself, as an amature with hp tuners i made the car run a heck of a lot better than they could.
Old 05-08-2012, 10:20 PM
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Originally Posted by Sharkey
im running a 2.7 just fine on my stock internals, no cams. to make better use of the extra boost cams will help, but its going to affect driveability.

dont worry, toss the 2.8 on there with 60lb injectors. im not sure why zzp is now insisting cars cant idle correctly on 60s, my car idles great after i took their crappy tune out that gave me idle issues, warm up issues, and set lean codes. they sent a couple flashes to me to get full throttle correct then ignored me. i tuned the car myself, as an amature with hp tuners i made the car run a heck of a lot better than they could.
That's shitty!!! I've heard bad stuff about zzp!! Great stuff and that's where I get everything but just bad customer service.. Well I'm probably just going to hp tune it at my buddy's shop (camdup racing) so I don't have to deal with that!!
Old 05-08-2012, 10:22 PM
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Originally Posted by Sharkey
im running a 2.7 just fine on my stock internals, no cams. to make better use of the extra boost cams will help, but its going to affect driveability.

dont worry, toss the 2.8 on there with 60lb injectors. im not sure why zzp is now insisting cars cant idle correctly on 60s, my car idles great after i took their crappy tune out that gave me idle issues, warm up issues, and set lean codes. they sent a couple flashes to me to get full throttle correct then ignored me. i tuned the car myself, as an amature with hp tuners i made the car run a heck of a lot better than they could.
How much boost are you getting with the 2.7 pulley w/60# injectors??
Old 05-08-2012, 11:12 PM
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around 17-18psi.
Old 05-08-2012, 11:17 PM
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the #50 injectors will work fine, im on a 2.7 with the 50's.
Old 05-08-2012, 11:32 PM
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what sort of injector duty cycle are you hitting? im hitting 71%,
Old 05-09-2012, 07:58 AM
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Originally Posted by Sharkey
what sort of injector duty cycle are you hitting? im hitting 71%,
How can you tell what your duty cycle is.. Guessing interceptors?
Old 05-09-2012, 08:34 AM
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Not sure what my idc is I'm getting gauges soon .
Old 05-09-2012, 03:36 PM
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Here's a question for you. Theoretically if you had complete bolt ons, injectors, etc.. could you just change a pulley and not need to change the tune? And if you do need a changed tune what do you change?
Old 05-09-2012, 03:40 PM
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Any time you change your pulley, bigger or smaller, you will need to tweek your tune
Old 05-09-2012, 05:28 PM
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well zzp dosnt give you an option for their pcm. someone said the computer can adjsut for this, this may or not be true, but IMO, they prolly run their tune rich, so if someone does put a smaller pulley on, it will be safe also. almost same as what people do with the gm stage 2 kits.
Old 05-09-2012, 05:48 PM
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Originally Posted by sick CCSS
well zzp dosnt give you an option for their pcm. someone said the computer can adjsut for this, this may or not be true, but IMO, they prolly run their tune rich, so if someone does put a smaller pulley on, it will be safe also. almost same as what people do with the gm stage 2 kits.
that is exactly why i asked that question!! i dont know about the whole can tune.. im going to have mine hp tuned at my buddy shop (camdup racing).. i think you just get more with a hp tune!!
Old 05-09-2012, 06:13 PM
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I'm a believer in hp tuners also as far as getting more power this allows you to have a more accurate tune based off of your mods plus every car is different so they will all react differently to certain mods
Old 05-09-2012, 10:19 PM
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when you get some mods on the car it is better to have the car tuned properly instead of a canned tune. you may or may not make more power (in my case i doubt it, im still running the same timing table and afr is about the same), however everything will be set up correctly. full throttle, as its the most important to keep the motor in one piece, isnt the biggest deal in tuning. when changing to bigger injectors, different intakes, etc its a lot more work to get the idle, cruise, medium throttle, and coast down set correctly to make the car drive like stock.

i spent about 6 hours this weekend driving around tuning my car. 5 hours was spent working the error out of the ve table, cleaning up the maf calibrations and some other tweaks for light and medium throttle. id say less than an hour was spent correcting the maf calibration while in power enrichment, i think i flashed it 3 times and i was happy.

in theory, depending on your tune you should be able to drop down a pulley without issue. the theory is dropping a pulley size just gives less air flow, and your maf will be reading less air so the computer will command less fuel. in a perfect world that would work, however its best to always log and tweak it as needed.
Old 05-09-2012, 10:32 PM
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^Why would you want your car to drive like stock? That's what I thought about pulleys also.
Old 05-10-2012, 01:55 AM
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stock but faster of course is what he means lol. i wish my car drove like stock. zzp's canned tune hurts my feelings
Old 05-10-2012, 02:20 AM
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by stock i mean driveability wise. i want the car to drive smooth, idle nice, start and warm up smoothly, have good throttle response, and get decent fuel economy. thats how a stock car drives. i dont want the car to bog, buck, idle rough, and set codes. on top of this i want the car to go like hell when i step on it. with the zzp tune my car went like hell but didnt do everything else very well.

modern fuel injection is a wonderful thing, and tuned correctly, even a highly modified car should be able to drive smoothly without feeling like a highly modified car, till you step on it of coarse.
Old 05-10-2012, 03:17 AM
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just save your money for a tvs or a turbo swap
Old 05-10-2012, 03:24 AM
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stage kits IMO are not worth the price u can piece things together for alot cheaper anyways


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