My original motor crapped out at 77k due to water seals.

 

87K here, Stock Engine and Turbos - Everything else has been modded. Been running 12-8-12 for a very long time with no problems. Pulls harder than the day I bougth it.

Chris

 

put 90K on my stock motor then I had it rebuilt in in CA because I was taking it to VA.

 

about 78K now, runs perfect!

 

121k, Compression is over 100psi. Been smoking some at start-up because of the turbos, little shaft play. Other then that, never had any problems. Lots of mods, only mod left is the IC. I have the Greddy Turbo cont. set at the lowest setting and getting 11-8-11 boost. Set at 2pm and 10am I'l get 16psi of boost, once in a while since I don't have an IC yet, will get the Williams IC soon, very soon. Best part it's an Auto, for us middle-aged guys.

 

I have about 96k and still going on stock motor, but compression is getting weak and I will need a rebuild soon.

 

Mine is totally stock and has 113K currently no motor problems just a couple of blown hoses.

Side note: I sold my 1981 gen 1 with 215k on a stock motor but that was a non turbo car.

 

I had 122k b4 i decided to rebuild it for the hell of it... Still ran fine thou but now it runs MUCH stronger. Must be the porting i guess

 

106k all original and stock

 

88,550 engine just died. No compression in the front and below 30 in the back. In search for a new/used/rebuild.

 

and still strong. My R1's a daily driver, 4-seasons per year, as well as weekend racer. It's been tracked from the time it had 20,000 miles on the odometer, with an average of 10 events per season. Compression test done Sept 30, 2000 and 78,290 miles--6.3, 6.3, 6.2 on front rotor; 7.0, 7.0, 7.0 on rear rotor. That reading was taken 14,000 miles and 14 track events ago. Boost is 10, 8, 10, with some slight oil smoke upon hard acceleration indicating tired turbos. Don't go jinksing me, now!

 

93K on stock engine and turbos
running strong with 13 psi

 

103k+ before one of apex seals let go.

 

107k and putting in a single

 

73k and everything is still great.
no mods (yet) ... all stock and running a perfect boost pattern..

-wilson
93 blk R1

 

80k and running strong

 

98K, but unfortunately I think it's time for a rebuild.

 

77K on original motor and turbos! With mods listed below dyno'd 240 at the wheels, on 10-8-10 boost pattern.

 

almost 97,000. not a single problem

 

89k and still goin!

 

116,000 miles all original, til the motor gave up... beat that.

 

74k when the apex went, now am at 1600 miles and having vaccum leaks , I think

 

Thought I would update this. That motor blew up at 98,000 miles

Now on motor two with over 5000 miles, downpipe and M2 dual tip exhaust. Still sees 8,000 rpm regularly

 

Picked mine up at the start of the summer with 65K on it. It just corssed over 70k & is running well.

 

Mine is just about to roll over to 70K. I thought my cooant seals were shot, but they turned out to be OK. Now my vacuum is a bit low and the idle is lumpy, but I'm hoping some ATF and a new set of plugs will take care of that.