Picked up a GenV SC and LIM ($100 for both ) from the junkyard from a low mile 2007 GP for my L67 that I'm building, was wondering what pulley do you think I can tune in and be able to run without KR.. My build will have VS cam, 105# crow springs, Northstar TB, headers, 180* stat, blocked supercharger/TB coolant passage.
Also kind of sucks I have to start my polishing all over again atleast I can use that blower on my daily driver.
should be able to pull off a 3.25 with out issues... with the N* you'll need tuned so thats a given! I had 3.25 with headers, rockers, exhaust tstat and plugs no KR.
you stink! I want to get a Gen V but good lord everyone wants 500 around here... I'd love to find one that cheap hell I'd pay 100 for shipping
maybe I should just hit up a yard and peak around see what I can find.... car-parts.com is insane on prices... you didn't see anymore Gen V's did ya
------------------ 3800 SC/IC Formula whines more than your girl... 08 Cobalt SS TC - ZZP tuned, K&N SRI, 6k HID's 13.31@107 07 HHR - Wifes
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07:26 PM
cam-a-lot Member
Posts: 2226 From: Barrie- Ontario, Canada Registered: Oct 2010
Stupid question.... Why didn't you grab the Series III bottom end too? I assume GM would have made some improvements to the block, rods, crank, etc as opposed to an older Series II?
I don't think you can go 3.25 without an intercooler on a Gen V based on the research I have done. I have a 2007 SC motor as well and am most likely going with a 3.5 to play it safe
Stupid question.... Why didn't you grab the Series III bottom end too? I assume GM would have made some improvements to the block, rods, crank, etc as opposed to an older Series II?
Cause I already bought and started the L67 build.... Kind of sucks too cause this engine was already pulled (person just took tranny), I had to do all the hard work removing it with hand tools for mine
I think the L67 bottom end is pretty good from my experience with them.
We built a series III with Northstar TB, 1.9 rockers, headers, SSIC, and a 3.25" pulley. It put out 301.6whp. It ran the 3.4" pulley without the SSIC and had no KR.
You would have to check the data....every 3800 acts a little different to mods.
That's putting it politely. Way back when, I started out running a 3.4" pulley on my 3800SC series III w Gen V supercharger KR's of 2-4* were all over the chart. I tried to tune them out by increasing AE fueling, took total timing down 1 degree from stock etc. . With the smaller pulley, reduced timing 180* stat and a 3" exhaust and running WOT at a super rich 11:2 AFR (on the wideband) KR's were still evident. Added a ZZ SS intercooler, returned the program to more sensible fuelng values of 12:1 at WOT and added back the timing to stock and voila all KR's were gone.
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We built a series III with Northstar TB, 1.9 rockers, headers, SSIC, and a 3.25" pulley. It put out 301.6whp. It ran the 3.4" pulley without the SSIC and had no KR.
You would have to check the data....every 3800 acts a little different to mods. Dave
I believe that the SSIC makes all the difference in the world. The 1.9 rockers and headers undoubtedly help too. As for scanning and programming/tuning with the wideband- I see no way around it.
------------------ " THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Powerlog manifold, Northstar TB, LS1 MAF, 3" Flotech Afterburner Exhaust, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, HP Tuners VCM Suite. "THE COLUSSUS" 87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H " ON THE LOOSE WITHOUT THE JUICE "
[This message has been edited by Dennis LaGrua (edited 10-01-2012).]
) from the junkyard from a low mile 2007 GP for my L67 that I'm building, was wondering what pulley do you think I can tune in and be able to run without KR.. My build will have VS cam, 105# crow springs, Northstar TB, headers, 180* stat, blocked supercharger/TB coolant passage.
atleast I can use that blower on my daily driver.
I'd love to find one that cheap hell I'd pay 100 for shipping 
