Guest Anonymous Posted October 10, 2003 Share Posted October 10, 2003 I've been into racing for a long time now, but for once in my life I need to do something.. I like being different so I was looking into the Ford 5.0, but I desided on a Chevy LT1.. My question is would the stock pistons hold 6-8psi on a turbo.. The turbo would be a basic (twin t3's) or should I just take my time and build the bottom end and add a decent size single turbo. The car would be for drag/road racing but mainly track... What would be a wise thing to do? Thanks Kenneth K P.s what would a stock Corvette Lt1 do in to 70's Datsun with an auto in the quarter? Quote Link to comment Share on other sites More sharing options...
Guest zfan Posted October 10, 2003 Share Posted October 10, 2003 A stock Corvette LT1 with the proper set up and a good driver would run in the 12 to 13 second range. In my opinion the LT1 or LS1 are now the best swap. If you stroke them or use forced induction they are even meaner. Just my opinion. Mike Quote Link to comment Share on other sites More sharing options...
JKDGabe Posted October 11, 2003 Share Posted October 11, 2003 I can't answer your q' but http://www.ls1.com has a forced induction forum. Quote Link to comment Share on other sites More sharing options...
jonzer12 Posted October 11, 2003 Share Posted October 11, 2003 I know very little about FI but after watching a few (4) people build turbo setups on stock engines using the "I'll only run xx psi" motto I would advise against it. I can't speak from experience but it would seem boost is an addictive thing, sooner or later you will want more, its probably easier to build it right the first time.... since you are into racing the chances of you turning up the boost are pretty good! Quote Link to comment Share on other sites More sharing options...
Tim240z Posted October 11, 2003 Share Posted October 11, 2003 T3s on a LT1 are too small. You will be restricting the exhaust terribly...it'll be a big heat pump. Tim Quote Link to comment Share on other sites More sharing options...
SleeperZ Posted October 11, 2003 Share Posted October 11, 2003 Whichever turbo solution you pick, make sure you run an intercooler. Quote Link to comment Share on other sites More sharing options...
silicone boy Posted October 12, 2003 Share Posted October 12, 2003 I've always wondered how you could boost an LT1 with either turbos or a blower given it's fairly high compression ratio. Sure it has aluminum heads that are reverse cooled, but isn't the ratio close to 11:1? I guess that's why you see a lot more blown Mustangs than Chevys. For my turbo project, I'm worried that my 9.7:1 ratio is too high (I didn't plan well-I have dished pistons, but I'm using a set of heads that I had shaved for higher compression prior to my decision to try forced induction). I will definitely intercool, and probably water inject also. The problem I'm finding with intercooling is that there is not a whole lot of room for one large enough to handle the airflow that a turbo V8 can produce. Quote Link to comment Share on other sites More sharing options...
DavyZ Posted October 12, 2003 Share Posted October 12, 2003 I was advised by ScottieGNZ to install forged pistons at about 8:1 or 8.5:1 compression. If you want to turbocharge an LT1, make the GN motor your model. If you do that, you insue that the motor will be more then "it feels about right." Turbocharging a high compression motor is not advisable or really necessary. I wish I was more technical, more definitive, and could answer the question directly, but I can't right now. How much horsepower are you going for? Use of the car? What do you want it to do? The turbo LT1 is my next swap, and I'll get to that after I finish my present one. The best EFI motor that has ease of modification, bang for the buck, and a good history is the LT1. It will rock Davy Quote Link to comment Share on other sites More sharing options...
Phantom Posted October 12, 2003 Share Posted October 12, 2003 Go to http://www.procharger.com and get some of their information. They can provide you enough literature on their conversion that it will help with any conversion. You can boost a PROPERLY modified LT1 upwards of 20 psi. Quote Link to comment Share on other sites More sharing options...
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