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overbore of 1800 gtx engine
Posted: October 25th, 2009, 10:56 am
by nickmx3
Hey am inquiring about the 1800 gtx bp turbo engine, what is the max it can be over bored, or can it be sleeved. The thing is i need to redo my cylinders as i noticed that two pistons have play and dont fit the cylinder walls correctly. Or what books can i find to get the info.
Re: overbore of 1800 gtx engine
Posted: October 26th, 2009, 9:44 pm
by Nd4SpdSe
Ther's a guy doing an AWD project with a BP up to 2.0L
Re: overbore of 1800 gtx engine
Posted: October 27th, 2009, 6:45 am
by hotsiit
Somewhat pricey but something I eventually would like to do
Taken from flyinmiata's site:
http://www.flyinmiata.com/index.php?dep ... 0%20A-BEAM
"Build the ultimate Miata motor. An extra 200cc can make a big difference to turbo spoolup or naturally aspirated power. Starting with a cut up block, we measured to determine the maximum stroke the 1.8 could handle without a modified block. That's 4 mm more than stock. The bore was set at 84.5 mm for a few reasons - it leaves a good margin of safety, allows use of stock head gaskets and puts the final displacement at 1995cc. Since the first car to get a stroker was the Track Dog running in an under-2000cc class, that was perfect."