Forced Induction Custom FI Setup Questions

Turbo size recommendation for 2.8L Mercedes

Old 07-09-2013, 06:17 AM
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Thumbs up Turbo size recommendation for 2.8L Mercedes

Guys,

I starting my turbo project (and electronic injection) for my 1982 , 280 SL mercedes. This engine is slant 6 cylinders 2.8 liter with 12 pistons, normal working pressure is 9 BAR, with 188 BHP.

I have looked at Garrett website, but i didn't manage to understand which turbo i should use - to take the small ones with 28 MM on ~40, or to move to bigger one like 37 - 45 ?

Can you recommend ?
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Old 07-09-2013, 10:26 AM
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It depends - how much power are you going for, and what sort of driving will it be used for?
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Old 07-09-2013, 01:59 PM
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The car is stick - 5 gears. I will want to use it for daily driving - it was fully restored to original state - i don't want to make it a drift car

It is classic road-star with rear drive - it can handle V8 engine up to 5.6 liter ... so from the mechanic perspective - it is very strong.
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Old 07-09-2013, 02:00 PM
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if the engine now is 190 BHP - i think that 320-260 BHP will be great
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Old 07-16-2013, 09:00 AM
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I'm thinking a GT2871 in that case.
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Old 07-16-2013, 04:16 PM
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Matt, what do think on the GT35 ball bearing turbo ? what will be the effect of using larger turbo ?
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Old 07-18-2013, 08:51 AM
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More lag, and it's not going to come on boost until higher RPM. It would be better for a drag car than a street car at your engine size.
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