Twin turbo 351w which turbo?

ryan7662 · 09-17-2009

I've changed my mind about the single turbo setup for my 351w. I'm gonna modify my mac headers to mount two t3/t4 turbos in the front behind the headlights of my 84lx. I was looking at getting two precision t3/t4 turbos like this one I found on ebay
Precision Turbo Turbocharger (6076E 59mm Inducer 610hp):eBay Motors (item 270447885400 end time Sep-25-09 10:02:57 PDT)
I'm guessing a a/r of .48 on the turbine side would be good or should I get the .63? I want to run 750hp max since I'm getting forged pistons and rods and a stud girdle to prevent main cap walk. I'll probably only want to run 45-500 daily and am looking for a quick spooling setup so that's why I want to go the twin turbo setup. Would the 59mm inducer be too much for twins? I could get a 56 or 54mm if that would be a better match. These are externally wastegated despite the pic showing them as being internally. Thanks again any help would be greatly appreciated.

nigel · 09-17-2009

I don't know what type to use but that is going to be one badass stang.

ryan7662 · 09-17-2009

Oh yeah I got big plans for her

. She'll probably be done around next may since the right parts I'll need are pretty expensive. Gonna try to use one 1000hp rated intercooler by joining the two discharge pipes right before the intercooler inlet with a y pipe. Maybe that might not be a good idea but I'm gonna ask around and see if its alright to do that. I'll have a progressive water/methanol injection system along with the water cooled intercooler. Using e7 heads for now so I want to make sure my egts are down and I don't get any knocking. Pmas blow thru tube maf, quarterhorse tuner/ sn95 t4m0, lc-1 wideband I could go on. Wc t5 will be swapped for a d&d magnum t56 next christmas

and a 9" rear shortly after that.

That's not everything either I could go on for awhile. I think the 59mm would be ok but I might call precision or wait to here back from the person I'm gonna buy the turbo from. Peace

ryan7662 · 09-18-2009

Never mind that bs I said before about using the stock e7's for this. I just picked up a set of brand new Dart pro 1 series alum. heads

for $800 bones on ebay. There 195cc heads with a 2.02int and 1.60 ex valve. I think these heads should get along very well with two 59mm turbos.New 62cc Dart Pro 1 Aluminum SBF 195cc Heads #13200010:eBay Motors (item 110389595955 end time Sep-18-09 13:06:27 PDT)