Quote:
Originally Posted by NHRABill
Thanks for all of the comments regarding the rear turbo. My point of view was not stated as I made my comments thinking about myself like always lol.
and as Ed K mentioned the noticeable difference will be much more pronounced in a small displacement car. I am always thinking v8 and had been toying with the idea of putting the little garrett T3 I pulled from my Grand National on for kicks. The oil pump is no issue cause they are cheap and a simple hookup and the lack of need for an intercooler makes it easier in my eyes and a lot cheaper overall.
The power of a v8 in comparison will not show the mass increase in power as you may feel in a 4cyl motor having 300lbs of torque already the kick from the turbo will only need to produce 4-6lbs of boost unlike the smaller engine that will want more. so the "lag" will actually help the car be more efficient by not creating too much boost too quickly. Boost requires more fuel it will also reduce the amount of vacum in the system under standard driving conditions adding to fuel economy it may not cause mass performance gains because the turbo is small and designed for a v6 but it will increase the cars overall efficiencey.
So I was looking at it from another set of eyes than most. All of your points are make a great argument for your point of view.
On another note I never liked the turbo Mess under the hood. Cover a turbo all you want they are crazy hot wrapped and shielded my 85 National was a nightmare to work with poor design much better in 86 and 87 especially when the exhaust housing was made smaller it helped the turbo spool much faster this is the reason I replaced my 85 turbo with a 86 model the lower end power due to smaller exhaust housing. very noticeable.
Didn't mean to hijack thread here I enjoy the comments and just went with it.  |
For V8, like 300-350ci you would need bigger than T3 , T4 works . The T3 I think would cause to much back pressure with its smaller housing , even if you got large ones .
twin T3 would work nice for 350+ but for eco boost type you might get away with slight smaller twin setup .
So you had 85 GN , that was one with turbo in back and no intercooler . If memory good the 86 was with intercooler in front of fan /pulleys and that one had ceramic intake blade , 14-15lb too .