hey guys im curious, how strong are d15 motors? im guessing a bit weaker than d16's but i see guys running some good boost on the jdm d15 motors. Im thinking i might use my spare d15 just as a test motor, but i wont if it's gonna pop immediatly, thats not worth my time. The motor is a 160K mile d15b7 it always ran very strong and never burned or leaked anything. I would run the IHI rhb5 turbo at stock 8lb wastegate, hf mani, walbro pump, 450cc injectors, afc , small fmic, some sort of a turboedit map for my chipped ecu, maby a little dyno tuning.

 

Having a ride on a Boosted JDM D15 @ 8 PSI was what made me think of boost and boost my D16 motor. That thing pulled really nice.

It was D15 Vtec

 

my d15b7 is currently boosted. 6psi with a fmu on DPFI with no problems. stock timing

 

it depends on a lot of factors, so a definate number of miles can be given before it 'pops'. If it's a spare I say go for it, it'll give you some tuning experience... so ditch the hack and go with a chipped ecu, when the d15 does go You'll have a good grasp on street tuning and what not to do.

 

lets hear some guesses on how long it will last..anyone, anyone... :P

 

15 seconds at 23 psi

 

well outa for engines ive had so far the two that blew were d15's. i think they suck ***** but if you only boost a lil bit unlike my *** then it might last you a while.

 

ran a D15B2 with MPFI conversion for 2 month's at 14 psi...with the hack on a PM7 ZC ecu...running pretty rich.
Toyota CT20 turbo AR .42 comp...compressor was as big as a T3 AR .42 I measured it and had it side to side with a T3...

 

that makes me laugh. where you like, "hmm how much boost? awh eff it 14 psi it is" is it still in action?