APS LG upgrade dyno numbers.
1021 rwhp
984 rwtq @ 22 psi
Thanks Louis for the turbos and George and Brent for everything with the car.
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I am a crossroads now whether will be selling the car as is or fixing and upgrading it. If fix it going to go to ERL superdeck 427 possibly with 6 bolt heads,ls9 cam,maybe fast 102 intake. Doubt mine would be back up before next spring. Irony was went to forged 408 for reliabilty.LSX 427 is other option.
At those power/boost levels were the turbos showing any signs of being over-worked with your 402? Right now I'm trying to decide which route to go on my engine build. I was going to go iron 408, but the Gen IV to III swap is more than what I want to deal with. If money was no object I'd be going with an ERL block, but right now it's going to be either an LS2 or an LS3 block. I'm hoping a 416 won't move too much air for these turbos.
I should have some numbers dyno and track with the LG on ERL 427 next season. Coming winter up here now so no time to order engine, get it in and no tracks open anyway. But should be ordering in jan or feb and should have it in there for rock and roll this coming april. Never ran the LG on my 408 the stock turbos seems to do ok but never pushed them very hard. Just kept them at standard gate of about 7.5psi. Car was still pretty crazy fast no traction in first,second most of third when was a six speed and still not much different now as 4l80. Talking on street.didn't take car to track. 408s rock pretty good and sure 416 or 427 would as well and not sure what you mean about gen 4 ,408 iron block is gen 3 I think and almost every part transferred right over from my ls1 engine. I would still be rocking my 408 but something went bad on oil pressure few weeks back and parked it. Looks like bearing material in oil filter pleats. So yank it and if yanking it going to put in ERL 427 superdeck maybe with 6 bolt heads full meal deal.
408 will be taken apart ,fixed up and sure will find a nice new home in somebodies vehicle.
My LS2 GTO is a Gen IV and has different knock sensors and other accessory locations. Going with the Gen III is doable, but I want the least amount of headaches on this build because I'm sure there will be a lot.

not saying its a good thing but you can see what it will do
FIXXED........ SWEET
SO BACK ON TOPIC onemean01 just go out to the track for us and granny shift. we arent looking for anythng crazy i just want to see the MPH LOL
Last edited by tomz28; Oct 24, 2010 at 06:31 PM.




lol