GM High Tech Performance Magazine Forums

GM High Tech Performance Magazine Forumshttp://forums.gmhightechperformance.comJoin the GM Performance Forum at GM High-Tech Performance Magazine to discuss your modifications & performance, projects, latest news, shows & events, and more.http://forums.gmhightechperformance.com/70/7919776/misc/2001-silverado-53l-swap-with-ls327/index.htmlFri, 20 Nov 2009 17:11:59 -08002001 Silverado 5.3L swap with LS327
Hey I have a quick question I have a 2001 silverado, 5.3L procharged with 42LB lucas injectors. The OEM engine blew a piston and the head. I bought a new GM performance LS327 Engine and am looking for a tune file for HP Tunner ( I CHECKED THEIR SITE) or parmeters that may have to be changed in the computer. I am only looking for the stock paremters I would have to change not including procharger. I really need help I have the engine installed and running, it seems to run fine but I am having an issue were the check engine light comes on and blinks when in minor boost. I just need some help no one from HP can help or from GM on the stock parmeters in the computer that i have to change. I was wondering if any of the experts on here can give me something. THANKS

]]><![CDATA[2001 Silverado 5.3L swap with LS327]]>http://forums.gmhightechperformance.com/70/7919776/misc/2001-silverado-53l-swap-with-ls327http://forums.gmhightechperformance.com/70/7948262/general-gm-topics/zzp-performance-s3-heat-exchanger/index.htmlThu, 19 Nov 2009 22:11:48 -0800ZZP Performance S3 Heat Exchanger
I need a how to on how to install the zzp performance s3 heat exchanger on a 2006 Chevrolet Cobalt SS Supercharged 2.0L ecotec without taking the front bumper off. If you could include pictures that would be appriciated.

]]><![CDATA[ZZP Performance S3 Heat Exchanger]]>http://forums.gmhightechperformance.com/70/7948262/general-gm-topics/zzp-performance-s3-heat-exchangerhttp://forums.gmhightechperformance.com/70/7917955/general-gm-topics/automatic-transmission-in-manual-car/index.htmlThu, 19 Nov 2009 18:11:10 -0800Automatic Transmission in Manual Car
Okay, so here is the problem, I had a 95 formula with auto tranny that i wrecked back in february. The motor was still good and I had recently put invested alot of money in the motor and accessories, (a/c, alternator, radiator, fuel pump), so i decided to put the motor and tranny in another body. so, i bought another 95 formula body, but it had previously been a manual set-up. I put my motor, and auto tranny in it. My computer was trash but I got another one from a 95 camaro with auto tranny. Now that everything is in the car and running, when i put the car in drive, it goes into and does not shift from 3rd gear. I can manually shift 2nd and 3rd, but no 1st or 4th. reverse works as well. My speedo doesn't work either. through research I have found that usually means that the tranny is in "limp home mode" because of an electrical connection problem. I figure that is probably a problem caused by something in the wiring harness that is different between the auto and manual. I know that there is a switch in the shifter that i dont have plugged in because there wasn't a connector for it in the manual wiring harness. Is that what is causing this? Also is there an automatic tranny relay or fuse that a manual car wouldn't have? Or do you think it is some other problem entirely? I'm stumped. Please help.

]]><![CDATA[Automatic Transmission in Manual Car]]>http://forums.gmhightechperformance.com/70/7917955/general-gm-topics/automatic-transmission-in-manual-carhttp://forums.gmhightechperformance.com/70/7944791/magazine-comments/fastest-2010-camaro/index.htmlMon, 16 Nov 2009 14:11:07 -0800Fastest 2010 Camaro
Glen, Thanks for the heads up! Do you know if they have been to the track yet?

]]><![CDATA[Fastest 2010 Camaro]]>http://forums.gmhightechperformance.com/70/7944791/magazine-comments/fastest-2010-camarohttp://forums.gmhightechperformance.com/70/7910167/misc/cam-specs/index.htmlSun, 15 Nov 2009 06:11:54 -0800Cam Specs.
Is there somewhere on this website or another site that I can get cam specs? I have a SBC hydraulic roller with the following numbers on the back of the cam... 057 03L 071 FM65 Any help is appreciated. RM

]]><![CDATA[Cam Specs.]]>http://forums.gmhightechperformance.com/70/7910167/misc/cam-specshttp://forums.gmhightechperformance.com/70/7942400/general-gm-topics/2006-chevrolet-cobalt-ss-superchared-20l-ecotec/index.htmlSat, 14 Nov 2009 15:11:18 -08002006 Chevrolet Cobalt SS Superchared 2.0L Ecotec
Okay everyone i am finally getting around to ordering parts and am debating on what to do. My power goal is 300hp+. Right now i have stage 2, hahn racecraft cat-back exhaust, zzp s3 heat exchanger and gmpp performance clutch and everything else is stock. I was thinking about going a custom setup route but knowing me i will want more power and most likley change it around eventually. So what i was thinking was get the supporting mods out of the way: zzp cold air intake, zzp downpipe and header, gm dual pass endplate, 60lb injectors, devils own meth injection, hp tuners tune and a custom 2.6" pulley. I eventually want to port the stock m62 blower, port my head, build the motor, and spray the car as well. My other question is will i need anything else? What power level would i be at? If anyone here thinks i should get one brand over another please put it out there explain why. I dont want to buy something now and have to replace it later on.

]]><![CDATA[2006 Chevrolet Cobalt SS Superchared 2.0L Ecotec]]>http://forums.gmhightechperformance.com/70/7942400/general-gm-topics/2006-chevrolet-cobalt-ss-superchared-20l-ecotechttp://forums.gmhightechperformance.com/70/7983951/ltx/lt1-conversion-to-carburetor-questions-and-info-needed-please/index.htmlFri, 13 Nov 2009 01:11:09 -0800LT1 Conversion to Carburetor Questions and Info Needed Please...
Okay long story short I have a built 383 LT1. Garage caught fire burnt all wiring and rubber lines, hoses, etc. So I had all painless perfect kit and so on. Well Im putting the motor into and 1976 Corvette and do not want to spends thousands again to get all new sensors, lines, optispark. So I want to just swap it to carb and go. I have the intake, oil dist hole plug, HEI Dist, and carb. But my question is what do I do for Ignition timming of this motor? Can anyone please help me out here. Also it has roller rockers I pulled the engine apart after the fire to check it out only had about 100 miles on it and am now triing to reassembly can I just put cyl 1 on tdc and then cyl 6 on tdc and torque the roller rockers down to 18ft lbs? THANKS so much in advance.

]]><![CDATA[LT1 Conversion to Carburetor Questions and Info Needed Please...]]>http://forums.gmhightechperformance.com/70/7983951/ltx/lt1-conversion-to-carburetor-questions-and-info-needed-pleasehttp://forums.gmhightechperformance.com/70/7939775/ltx/im-going-to-change-my-hydraulic-roller-for-a-solid-roller-cam/index.htmlThu, 12 Nov 2009 17:11:45 -0800im going to change my hydraulic roller for a solid roller cam
im going to change my hydraulic roller for a solid roller cam, any suggestion to avoid the damage of the roller lifters or the engine, the car is used most in the street,

]]><![CDATA[im going to change my hydraulic roller for a solid roller cam]]>http://forums.gmhightechperformance.com/70/7939775/ltx/im-going-to-change-my-hydraulic-roller-for-a-solid-roller-camhttp://forums.gmhightechperformance.com/70/7886995/lsx/ls-upgrades/index.htmlMon, 02 Nov 2009 02:11:43 -0800LS upgrades??
Hi all. I have a 2002 GMC Sierra SLT with a 5.3L. I just came across a LS4 cam with titanium springs from an 2004 'Vette with 30k miles on it. The guy is having other upgrades done to it which allowed me to buy the cam and springs fairly cheap! I was informed before the purchase from an engine builder that the LS4 cam and springs will fit into my engine to give it a boost along with having it tuned by someone. Is it true that the cam and springs fit, also i was told to look for a LT intake manifold for it as well as it will fit the 5.3L. If true, what vehicles would i look for to find the intake? THX.

]]><![CDATA[LS upgrades??]]>http://forums.gmhightechperformance.com/70/7886995/lsx/ls-upgradeshttp://forums.gmhightechperformance.com/70/7914323/general-gm-topics/hello-from-gm-tunerz/index.htmlTue, 27 Oct 2009 02:10:24 -0700Hello from GM Tunerz
Hey everyone! Love this magazine! I'm Rick and I started a club called GM Tunerz 2 years ago in Halifax, Nova Scotia. We have chapters in New Brunswick and Kentucky too. We have members who have every type of GM, and we are into performance and drag racing! We are GM vehicle enthusiasts, and feel free to check out our site and sign up on our forum. http://www.gmtunerz.ca YouTube Channel: http://www.youtube.com/gmtunerz 2009 Promo Video: http://www.youtube.com/watch?v=9uSUq7C581g Forum: http://www.gmtunerz.com/forum

]]><![CDATA[Hello from GM Tunerz]]>http://forums.gmhightechperformance.com/70/7914323/general-gm-topics/hello-from-gm-tunerzhttp://forums.gmhightechperformance.com/70/7949466/general-gm-topics/ptv/index.htmlSat, 24 Oct 2009 16:10:36 -0700PTV
Does anyone know what the piston to valve clearance is on a 2003 4.8 L engine.

]]><![CDATA[PTV]]>http://forums.gmhightechperformance.com/70/7949466/general-gm-topics/ptvhttp://forums.gmhightechperformance.com/70/7910180/misc/v-v-t-cam/index.htmlSat, 24 Oct 2009 01:10:17 -0700V V T CAM
I HAVE AFTERMARKET RACE CAM IN MY C-10 350 THAT IS TOO ROUGH ! I'M LOOKING TO CHANGE THE CAM TO MILD , SOMETHING THAT WILL GIVE ME GOOD VACCUMN SO I CAN GET RID OF THE ELECTRIC VACCUMN PUMP. AND SO MY TRUCK WILL IDLE SMOOTH. ANYBODY HAVE ANY IMPUT ON RHOADS VVT CAM KIT. IS IT A GOOD SETUP ? THANKS

]]><![CDATA[V V T CAM]]>http://forums.gmhightechperformance.com/70/7910180/misc/v-v-t-camhttp://forums.gmhightechperformance.com/70/7906517/general-gm-topics/motor-swap/index.htmlThu, 22 Oct 2009 01:10:20 -0700motor swap
i have a 98 1500 with a bad 5.7 vortec.can i swap the timimg chain cover sencors intake etc.. on to a 91 lt 1 aluminum head vette motor that i have.?

]]><![CDATA[motor swap]]>http://forums.gmhightechperformance.com/70/7906517/general-gm-topics/motor-swaphttp://forums.gmhightechperformance.com/70/7944978/swap-meet/1987-buick-gn-featured-right-here-in-gm-high-tech-gn-blitz/index.htmlWed, 21 Oct 2009 14:10:49 -07001987 Buick GN featured right here in GM High Tech GN Blitz
Good luck Ryan, I can't wait to see your 2010 SS!

]]><![CDATA[1987 Buick GN featured right here in GM High Tech GN Blitz]]>http://forums.gmhightechperformance.com/70/7944978/swap-meet/1987-buick-gn-featured-right-here-in-gm-high-tech-gn-blitzhttp://forums.gmhightechperformance.com/70/7894316/general-gm-topics/need-help-on-38l-buick-bottom-end/index.htmlSun, 18 Oct 2009 01:10:42 -0700Need help on 3.8L buick bottom end
Ok i got an 87 olds cutlass with a 3.8 in it. i just got done putting new bearings in the bottom end along with an oil pump, screen and tube. I'm ready to start it but i know i got to break it in first. What do i do to break it in before i drive it?

]]><![CDATA[Need help on 3.8L buick bottom end]]>http://forums.gmhightechperformance.com/70/7894316/general-gm-topics/need-help-on-38l-buick-bottom-endhttp://forums.gmhightechperformance.com/70/7877495/l98-lb9/fixing-up-a-57l-vortec-help/index.htmlWed, 14 Oct 2009 03:10:25 -0700FIXING UP A 5.7L VORTEC. HELP!!
i have a 5.7l vortec. i had a 100 shot on it but im selling it tomorrow. i need help. i went to look at a 5.3 to drop in but now i want to fix up my 5.7l vortec. i have about 1000 dollars to play with. what can i do to my 5.7l vortec to make it run good on all motor? please help. haha

]]><![CDATA[FIXING UP A 5.7L VORTEC. HELP!!]]>http://forums.gmhightechperformance.com/70/7877495/l98-lb9/fixing-up-a-57l-vortec-helphttp://forums.gmhightechperformance.com/70/7936299/general-gm-topics/fixing-up-a-57l-vortec-help/index.htmlWed, 14 Oct 2009 03:10:53 -0700FIXING UP A 5.7L VORTEC. HELP?!
i have a 5.7l vortec. i had a 100 shot on it but im selling it tomorrow. i need help. i went to look at a 5.3 to drop in but now i want to fix up my 5.7l vortec. i have about 1000 dollars to play with. what can i do to my 5.7l vortec to make it run good on all motor? please help. haha

]]><![CDATA[FIXING UP A 5.7L VORTEC. HELP?!]]>http://forums.gmhightechperformance.com/70/7936299/general-gm-topics/fixing-up-a-57l-vortec-helphttp://forums.gmhightechperformance.com/70/7925274/lsx/okay-guys-noob-here-and-i-need-some-tuner-module-advise/index.htmlThu, 08 Oct 2009 06:10:42 -0700Okay guys, noob here and I need some tuner module advise.
Welcome to the forums Wanda.

]]><![CDATA[Okay guys, noob here and I need some tuner module advise.]]>http://forums.gmhightechperformance.com/70/7925274/lsx/okay-guys-noob-here-and-i-need-some-tuner-module-advisehttp://forums.gmhightechperformance.com/70/7919943/general-gm-topics/computer-wiring-info-for-lsx-swaps/index.htmlTue, 06 Oct 2009 04:10:59 -0700Computer & wiring info for LSx swaps
If you are going to use the 6.2L L92 VVT truck motor then I would stick with the Mast harness and PCM to avoid any issues, and assure a quality calibration. For the 6.0L L76 I would call a GM Performance Parts dealer such as Scoggin-Dickey, they should be able to help you out with a PCM, TCM and harness. Speartech and EFI Connection also offer harnesses and PCMs for Gen III/IVs.

]]><![CDATA[Computer & wiring info for LSx swaps]]>http://forums.gmhightechperformance.com/70/7919943/general-gm-topics/computer-wiring-info-for-lsx-swapshttp://forums.gmhightechperformance.com/70/7909188/lsx/53-cast-iron-block-ly5-lmg-vs-aluminum-block-lc9/index.htmlWed, 30 Sep 2009 21:09:19 -07005.3 Cast Iron Block (LY5, LMG) vs. Aluminum block (LC9)
Hi guys. I'm looking at ordering a 2010 Suburban and am a little confused about some engine choices. There is a 5.3 iron block that's standard in the 2wd, and a optional flex-fuel version of the same iron block. In the 4wd there's a aluminum block version. The iron blocks are slightly higher rated (10hp) but are there any reasons or concerns with either version? Any problems with the flex-fuel versions? Thanks for your help.

]]><![CDATA[5.3 Cast Iron Block (LY5, LMG) vs. Aluminum block (LC9)]]>http://forums.gmhightechperformance.com/70/7909188/lsx/53-cast-iron-block-ly5-lmg-vs-aluminum-block-lc9http://forums.gmhightechperformance.com/70/7837012/magazine-comments/tbss/index.htmlWed, 30 Sep 2009 04:09:51 -0700TBSS
I just received my new pages of GMHTP and there is a very nice feature of Fastlane's TBSS. The SUV is well thought out and well put together. I knew a lot about this Turbo SUV long before it was featured. A nice feature before this one was I think TuneTimePerformance's TBSS. I don't remember the ET's of theirs but both articles and features were very nice and well put together. All my work from mechanics to tuning and electronics is done by RPM in Garner N.C. These guys house the #1 fastest and quickest TBSS in the Country. It is even noted in the Fastlane article that they are the second fastest. Why not feature "the" fastest? The driver/owner of the quickest/fastest TBSS is Martin Cox and he also owns the record for nitrous stock suspension car. I could be mistaken but I think those guys at RPM with Martin Cox have been 8.11 1/4 mile, one of their cars at 5.07 1/8 mile, and on 275 drag radials. I've also read 1.18 sixty foots. From what I've read about the TBSS, it's been 1.24 sixty and 9.06 in the 1/4 mile and fully streetable with 4 seats and the radio jammin' away. It is also my understanding that the nitrous stock suspension record held by RPM and Martin Cox has been in place for a year now. I read my magazine cover to cover and have seen no mention of such in GMHTP. As a fan of both the magazine and the people who work on my car, where's the love for the top dogs in the country?

]]><![CDATA[TBSS]]>http://forums.gmhightechperformance.com/70/7837012/magazine-comments/tbsshttp://forums.gmhightechperformance.com/70/7902630/general-gm-topics/rear-brake-conversion/index.htmlMon, 28 Sep 2009 21:09:08 -0700Rear Brake conversion
I wanted to put a rear brake conversion from drums to disc. I know that you can buy the kit. But I also know that you swap a conversion from another model to a camaro. I have a 1977 camaro project. Just starting out and I wanted to start from the rear and work my way up to the engine?

]]><![CDATA[Rear Brake conversion]]>http://forums.gmhightechperformance.com/70/7902630/general-gm-topics/rear-brake-conversionhttp://forums.gmhightechperformance.com/70/7893309/misc/swapping-a-lt1-for-a-ls6-in-a-95-z28-convertible-w-6-speed/index.htmlThu, 24 Sep 2009 23:09:21 -0700SWAPPING A LT1 FOR A LS6 IN A 95 Z28 CONVERTIBLE W/ 6 SPEED
it should fit but you will probably need to customize some motor mounts or do somethign with the Kmember. Youw ill definetly need to get a computer from an ls6 car and might be easier to get a whole wiring harness. my guess is the benfit of the extra money and time would not be worth the ls6 swap. I would put the money into building a forged stroker motor out of the original lt1. you will see the same power with a lot less headaches.

]]><![CDATA[SWAPPING A LT1 FOR A LS6 IN A 95 Z28 CONVERTIBLE W/ 6 SPEED]]>http://forums.gmhightechperformance.com/70/7893309/misc/swapping-a-lt1-for-a-ls6-in-a-95-z28-convertible-w-6-speedhttp://forums.gmhightechperformance.com/70/7793773/misc/92-z-tpi-a-i-r-pump-removal/index.htmlMon, 14 Sep 2009 05:09:42 -070092 Z TPI A I R pump removal
Has anyone ever eliminated the A I R pump on a 92 Z? evidently this pully is necessary for the routing of the belt,do you have to fabricate an idler pulley ? any help will be appreciated thanks DRZ

]]><![CDATA[92 Z TPI A I R pump removal]]>http://forums.gmhightechperformance.com/70/7793773/misc/92-z-tpi-a-i-r-pump-removalhttp://forums.gmhightechperformance.com/70/7787527/lsx/lq9-based-408-2-part-article/index.htmlFri, 11 Sep 2009 06:09:01 -0700LQ9 based 408 2 part article
This articled interested me because my son had previously suggested the same basis for people that want to build their own. He has a Sierra with the LQ9. I logged in to ask what the correct spec for the main bearing clearance is, and what were your final measurements for the successful dyno pull? Did SAM use the incorrect spec? Other than getting different bearings, how would clearance adjustments be made? First time post.

]]><![CDATA[LQ9 based 408 2 part article]]>http://forums.gmhightechperformance.com/70/7787527/lsx/lq9-based-408-2-part-article