Information on GM Vortec 8.1 turbo engine
Information on GM Vortec 8.1 turbo engine
(OP)
I am looking for an engine integrator that can supply GM 8.1 engine with turbo. Also I would appreciate any data on the mechanical efficency of this engine.





RE: Information on GM Vortec 8.1 turbo engine
RE: Information on GM Vortec 8.1 turbo engine
This is correct, I am looking for BSFC. I have not been able find a value for this parameter on the engine Datasheet from GM.
RE: Information on GM Vortec 8.1 turbo engine
Cheers
Greg Locock
SIG:Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips.
RE: Information on GM Vortec 8.1 turbo engine
RE: Information on GM Vortec 8.1 turbo engine
Cheers
Greg Locock
SIG:Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips.
RE: Information on GM Vortec 8.1 turbo engine
RE: Information on GM Vortec 8.1 turbo engine
Require a lower CR.
have a different pressure over the piston on the induction stroke.
Have a different pressure over the piston on the exhaust stroke.
Have a different pressure in the chamber at point of ignition.
Have a different pressure build up rate during combustion.
Have a different level of exhaust scavenging during overlap to the point that intake charge is also scavenged out the exhaust or passive EGR is occuring.
Regards
Pat
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RE: Information on GM Vortec 8.1 turbo engine
And the impact of retarding the ignition to avoid detonation.
Regards
Pat
See FAQ731-376: Eng-Tips.com Forum Policies for tips on use of eng-tips by professional engineers &
http://eng-tips.com/market.cfm
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RE: Information on GM Vortec 8.1 turbo engine
RE: Information on GM Vortec 8.1 turbo engine
Brian Bobyk - Hoerbiger Canada
RE: Information on GM Vortec 8.1 turbo engine
You are right, this is the engine I am looking for, by the datasheet of generators the efficiency of the engine is similar on the NA engine compared to the Turbo. I am looking for some field experiences with that engine and engine integrators that can supply the engine with the turbo kit, so far I only found the supply for the NA engine.
RE: Information on GM Vortec 8.1 turbo engine
Also, keep in mind you probably won't achieve the manufacturer's fuel consumption rating in field service.
This engine and application was discussed on, I believe, this forum not too long ago. See if you can find that thread for some additional info.
Brian Bobyk - Hoerbiger Canada
RE: Information on GM Vortec 8.1 turbo engine
thread71-252760: Lean burn on automotive natural gas engines
Brian