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Mazda Engine Swaps \  sr20det swap to a 87 dawg

sr20det swap to a 87 dawg

Mazda Engine Swaps Mazda Engine Mazda Tech
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replies 31
following 11
 
hunterw   +1y
caged 240 are you pretty familar with the sr20 because i have quite a few questions still haha.
caged240   +1y
yea shoot. im actually building my sr it should make between 400-450 with my mods
hunterw   +1y
caged240   +1y
haha btw im a mazdatruckin orphan lol
jmuse8482   +1y
SR's are more reliable than ("ANY") RB Engine if you plan on making more power than stock.. (With an RB).....There is a common oiling problem with the RB20,RB25,RB26 Series 1 & 2 motors, as the surface where the crankshaft meets the oil pump was machined too small, eventually leading to oil pump failure at high rpm. This issue was resolved in later versions of the RB26. ("So they say.") But God only knows when you get the engine which one it will be. It snaps and twists the oil pump gear, shreds it, breaks it in half... No oil pump, locked up engine. And not to mention the turbochargers on them are "FAIL". Ceramic Exhaust turbine and a plastic compressor (45V4 is plastic, 45V1, 2 and 3 are all steel.. however ALL exhaust wheels on the 45V's are ceramic).. Not joke. They will explode past 14psi. And yes they make a aftermarket crankshaft collar to fix this. But the crank has to be machined and this collar pressed+1 set screw and weld to be safe. Loads of money.

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jenko   +1y
A popular conversion in our neck of the woods!
PICTURES!!!! Because we didn't laminate our keyboards for nothing!
So do you have a gearbox and driveshaft yet?
hunterw   +1y
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There is mine before I shaved the firewall
jenko   +1y
Nice work Hunter, love those weird looking plenums!
jchristian   +1y
here is mine at Relaxin at the rock...
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jenko   +1y
Very popular conversion over here.
Smaller than the rb's so no alteration of the radiator.
Most people grab a rwd sr20det with 5 speed and chuck it all in.
There are plenty for sale just like that as well
I should have done that in hindsight. lol.