Hi everyone,
I’m looking at buying an Uber-clean turbo e36 m3 (previously forum member owned) and was curious about one thing...
The car has maybe 35-40k boosted miles on it on the stock bottom end. Only internal modifications to the motor would be the MLS head gasket, copper o-ringed block and ARP head bolts.
It is running somewhere around 450-500 at the crank. Map 1 is likely somewhere around 430-450 and up to 500 on map 3.
My fear is after 40k boosted miles I’ll be the guy ending up with the short end of the stick and have an expensive failure somewhere....am I just being paranoid?
Inform me either way! This will be my first boosted car so I have a lot to learn!
1997 BMW M3 - Boston Green/Modena
No, your concern is a good one. And the motor is now about 20 years old. It might be fine for a while longer. You can do a compression leak down test.
Whats the original mileage on the motor?
As p said definitely do a compression and leakdown before considering anything.
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1989 535i - sold
1999 M3 Tiag/Dove - sold
1998 M3 Turbo Arctic/black - current
2004 Built motor TiAg/Black - Sold
2008 E61 19T Turbo-Wagon - current
2011 E82 135i - S85 Swap - current
1998 M3 Cosmos S54 swapped Sedan - current
1998 Turbo: PTE6870 | 1.15 ar | Hp Cover, Custom Divided T4 bottom-mount, 3.5" SS exhaust, Dual Turbosmart Compgates, Turbosmart Raceport BOV, 3.5" Treadstone Intercooler, 3.5" Vibrant resonator and muffler, Arp 2k Headstuds | Arp 2k Main studs | 87mm Je pistons | Eagle rods | 9.2:1 static compression, Ces 87mm cutring, Custom solid rear subframe bushings, Akg 85d diff bushings, 4 clutch 3.15 diff, , Poly engine mounts, UUC trans mounts W/ enforcers, 22RPD OBD2 Stock ECU id1700 E85 tune, 22RPD Big power Transmission swap w/ GS6-53
The motor has 108k on it now, and it's been boosted for the past ~40k miles, which is actually somewhere around like the past 10-11 years.
I will check and see if we can get a leakdown and compression test going..
1997 BMW M3 - Boston Green/Modena
That is fairly low miles for the motor but fairly high for a mls gasket. Are you sure the block is o-ringed?
If you don't mind possibly having to fix something on it then buy it. Just be aware theres always a chance for failure. Id be worried about the turbo too.
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