Twin Garrett's suitable for 403 ls2...
No power results yet, still waiting for the motor. I went with the 66/64's for my 370ci build. I believe there is a guy on here who made around 1100 with the same turbos. I used forced inductions but Huron speed was actually cheaper by $100 or so. These particular small frame turbos have a few blade sizes. I would contact either one of those companies and see what the largest MM you can go with in that frame.
I paid right around $1450 shipped for both of them and they are small.. They where almost identical in size to my master power T61 turbos.
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Joined: Nov 2003
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From: Norn Iron
My car is not a drag car, it's also manual. So spool, transient response etc etc are all very important.
I did seriously consider a big single, mainly from a cost perspective. But there would be no way to achieve it with a sensible downpipe.
The low mounted twins actually worked out a lot better than I had expected. Manifolds are compact, truck based. Downpipe is almost a straight shot out, I actually have more ground clearance than my previous 2" headers/collector
It was all a win win really. A big single even if there had of been room....would probably have been more complicated overall...even if in theory it should be more simple.
That's a damn good question.. I called FI and told them i wanted a turbo the exact same size as the Master Power T61. The turbonetics was suggested and damn near identical in size. Although my S/N begins with a "T" i have a feeling they are in the 60 series as apposed to the "T" series. Ill find out tomorrow for sure though.
Talked to FI today. The 60 series is what I have and let me tell you they are very compact. The guy at FI said you can go as large as 76mm in the frame. That is unreal to me becuase these turbos are not big at all. My BW S366 is much larger.
