What boost is safe??

[JayDee]

1 bar is 14.5 psi under boost.
1 bar atmosphere is 14.7psi
1kg/mm is 14.22psi.

[rxangus]

Try this....

http://www.processassociates.com/process/convert/cf_prs.htm

Angus

[Glenn Butcher]

1 bar on standard turbo\'s correctly mapped is about the limit - before you run into problems with boost spike\'s, creep etc.

A larger turbo is able to produce a larger volume of air, so a T78 on 1bar will produce more power, hence you need more fuel and more stress is caused to the engine i.e. dowelling is a good idea.

Mapping is very important - along with many other things to make it all work and stay together.

[Glenn Butcher]

Originally posted by gsb876
Anyone know what level of boost on a rotary is safe??

My car is very highly modded so can handle more than most, but does anyone have a level they think is safe??

Oh - and to answer the question directly, only your engine builder/tuner can answer this question.  If they are all bolt ons to even a modified engine you won\'t get anywere unless you have someone with the skills to tune it to a high but safe level.

Your car has to have the correct: fuel system requirements, ECU, mapping (with the proper tools/equipment), apex seals, etc.   I wouldn\'t even think about increasing the boost until you had those things in place.  And the obvious - once these things are in place get it to a RR, spend lots of time tuning it correctly as per above.

Rotaries can run up to 45psi of boost with large turbo\'s producing amazing amounts of power, but only with the right goodies and knowledge in doing it all.

[ScuttleRX]

heres a good site for future boost pressure conversions

http://www.onlineconversion.com/

hundreds of others too:)

[Carl]

Originally posted by gbutcher

Rotaries can run up to 45psi of boost with large turbo\'s producing amazing amounts of power, but only with the right goodies and knowledge in doing it all.

And the right fuel,often the really hi HP engines are running methanol.
Kind regards
Carl

[gsb876]

Thanks for all info guys really appreciate it:)

I dont actually intend to race the car or anything but like to know the limitations just in case, so far ran the car at 1.0bar just to see and it seems fine at that running to 7000rpm\'s also been checking the knock reading so far not moved off 1, so thats pretty good unless its not working:rollin :rollin

But thanks for all the info:wave