wyomingste Posted January 25, 2006 Report Posted January 25, 2006 If anyone knows of any websites that are out there I would like to know of them. Earlier I found one that had computers where you could turn off your EGR, Revlimiter, Governer...ect. I believe this site also offered heads that could be flow tested, ported, different spring setups (including LS1), and different valves. I just need any sites possible out there for any type of 60* V-6 Thanks for any help anyone can offer, Eric Crusch Quote
Guest TurboSedan Posted January 25, 2006 Report Posted January 25, 2006 whatever you do turbocharge it! nothing better than getting 227whp & 325 ft/lbs of torque out of a 230,000 mile LH0 (which has never even been rebuilt) Quote
wyomingste Posted January 25, 2006 Author Report Posted January 25, 2006 I'm thinking n/a with nitrous. Up to this point forced induction and I have been in a long battle and its won (5 times taking every motor with it :bawl: ). Eric Quote
sl3196 Posted January 25, 2006 Report Posted January 25, 2006 Turbocharging would be a much better idea IMO. Quote
wyomingste Posted January 25, 2006 Author Report Posted January 25, 2006 So far I have come up with a few of the parts that I would like to use. Let me know what everyone thinks. http://www.cardomain.com/ride/2239543/2 I know that there are probably a few things that I have forgoten to add to the list if so please let me know. If anyone has any sugestions let me know as they will all be considered (but please no turbo sugestions). Thanks, Eric Quote
TeeJay3800 Posted January 25, 2006 Report Posted January 25, 2006 Rev limiter in gear: 7000 RPM Lower Intake: Stock LHO fully ported Top Intake: Stock LHO fully ported Maybe you're already aware, but the LH0 intakes will not get you anywhere near 7,000 rpm. Even after being ported and with a turbo. If you want to make power up there, go ahead and use Gen III intake components (2000+ preferably). Quote
Guest TurboSedan Posted January 25, 2006 Report Posted January 25, 2006 i wouldn't use the GEN-II top end. 3100/3400 exhaust manifolds, heads, lower intake, plenum etc. can be found anywhere cheap. all of that will bolt right onto your 3.1 MPFI engine and you can still use your existing wiring harness & computer. hell a complete 3400 engine can be found for under $500...that would be better still. stock crankshaft, rods & pistons will probably be fine. i'd be worried about the transmission more than anything. Quote
z284pwr Posted January 25, 2006 Report Posted January 25, 2006 Rev limiter in gear: 7000 RPM Lower Intake: Stock LHO fully ported Top Intake: Stock LHO fully ported Maybe you're already aware, but the LH0 intakes will not get you anywhere near 7,000 rpm. Even after being ported and with a turbo. If you want to make power up there, go ahead and use Gen III intake components (2000+ preferably). I'm going beg the differ I was pulling 6500 with my engine N/A with a 5spd, if the TGP had a turbo that would actually make power on top end, 7,000 would be nothing, hell, I have hit it atleast twice before even with the TGP thanks to the transmission being messed up I'm thinking n/a with nitrous. Bad idea, nitrous is harder on engines than boost. The instant cylinder pressures it provides are much harsher than TC/SC Quote
wyomingste Posted January 25, 2006 Author Report Posted January 25, 2006 I'm going to say different to. I have a bad transmission and when it slipped on the highway going 120+ I looked down to find the tach well past the 8000k mark, I don't know if this is a computer glitch but the motor was screaming. Also I'm going to work on a stronger performance transmission with the motor (put in at the same time, hopefully by mid-may). What transmission do I have? VIN: 1G2WT54TZMF239222. Thanks, Eric Quote
Robby1870 Posted January 25, 2006 Report Posted January 25, 2006 Well, the engine may be able to turn 8000 but that does not mean its making any worthwhile power up there. The stock HP curve starts falling off well below 5000 and torque below 4000. Quote
TeeJay3800 Posted January 25, 2006 Report Posted January 25, 2006 Well, the engine may be able to turn 8000 but that does not mean its making any worthwhile power up there. The stock HP curve starts falling off well below 5000 and torque below 4000. HP peaks at 4400 and TQ peaks at 3600. I have a factory dyno graph and the motor is producing only 100 hp at 6,000 rpm. (and TQ is down to 80 lb-ft) No matter how much you port and polish those manifolds and heads, you're not going to be producing any real power at high rpm. The intake runners are just too long and too narrow for that. You're MUCH better off swapping the cheap and easy-to-find Gen III intake components for high rpm power. Quote
z284pwr Posted January 25, 2006 Report Posted January 25, 2006 Well, the engine may be able to turn 8000 but that does not mean its making any worthwhile power up there. The stock HP curve starts falling off well below 5000 and torque below 4000. Yes, very very true, our stock 3.1/5spd with a Fidanza like hits a brick wall after 5,000 RPM, its funny and terrible at the same time, you poor 3.1 N/A/Auto guys, I feel terrible for you, they are so damn slow Quote
TeeJay3800 Posted January 25, 2006 Report Posted January 25, 2006 What transmission do I have? VIN: 1G2WT54TZMF239222 According to your VIN, you have a 1991 GP STE with the LH0 3.1. Your transmission is a 4T60. Quote
Supreme Cutlass Posted January 25, 2006 Report Posted January 25, 2006 I'm going to say different to. I have a bad transmission and when it slipped on the highway going 120+ I looked down to find the tach well past the 8000k mark, I don't know if this is a computer glitch but the motor was screaming. Also I'm going to work on a stronger performance transmission with the motor (put in at the same time, hopefully by mid-may). What transmission do I have? VIN: 1G2WT54TZMF239222. Thanks, Eric Your engine proably make piss for power at that rpm, this isn't a DOHC. Just put on the 3400 heads and a turbo; http://www.donkeypunchperformance.com/store/index.php?main_page=product_info&cPath=67&products_id=202 Quote
wyomingste Posted January 26, 2006 Author Report Posted January 26, 2006 I was just reading that the LG5 has a forged crankshaft. What is the difference in the crankshaft of a LSO and an LG5? Thanks, Eric Quote
TeeJay3800 Posted January 26, 2006 Report Posted January 26, 2006 Do you mean LH0? If so... Hardened Crank (Nitrided), Nodular Cast Iron with journal camfer/deep rolled fillets, casting 981 but this one IS unique to the 1989-1990 TGP and TSTE, worked on after starting as a 981 crank! Part number 10110549. Ion Nitrided/hardened depth of .02"-.03" raising surface hardness from 30-35 Rockwell C to 60 Rockwell C. http://www.w-body.com/forum/viewtopic.php?t=12387 Quote
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