XR2 Compression Question

[ZonkaRacing]

Theres a 1987 XR2 150 that i'm interested in getting from a local marina. I was told that the compression is 120 all around.

My question is.. What should the compression of an XR2 be at?
I remember reading somewhere that they should be no less than 140...

[ZonkaRacing]

.. .?

ttt

[drasticplastic]

XR-2 "fishing motor" comp. around 125lbs., XR-2 "racing motor" comp. around 140 lbs.. 2 very different motors.

[ZonkaRacing]

XR-2 "fishing motor" comp. around 125lbs., XR-2 "racing motor" comp. around 140 lbs.. 2 very different motors.

O, never knew there were two models of the xr2's... How can I tell the difference? The one i'm interested in is a 1987

like this one.


Thanks,

[dynobo]

That is the fishing motor and 120lbs comp. should be fine.

[drasticplastic]

Ditto on what dynobo said.

[83PREDICTOR]

I have that same engine on my Checkmate and I am very happy with it.

[ZonkaRacing]

I think i'm gona go with the Xr2. :rolleyes:


I have that same engine on my Checkmate and I am very happy with it.
Hey 83PREDICTOR, Glad to hear you're happy with your XR2. what numbers are you getting with your setup? And how big/heavy is your checkmate?

Thanks for the responses

[83PREDICTOR]

My Mate' is 16.5ft, 750 pounds. Running 68mph (gps) at 6800 rpms with a small diameter 26P LaserII.