bitchasscracker

ok so i searched google and ---- and found out that the car motor (d15b1 in a 90 hb) i have is a std motor, i have the 4speed gayness tranny and everything. but here is the wierd part...... everything i read on the search i did told me that the motor was a 8 valve motor and it used a pm9 ecu. so i look closer at the motor in the garage and it is a 16 valve motor. hmmmm....... so i thought maybe the kid who had it befor me did a head swap, nope the code on the head is pm9-4.... so what the ---- it is a d15b1 (pm9) wich is a 8 valve motor but it has a pmp 16 valve head ?

i really dont know what is going on with this thing so if you do make a post and let me know, by the way it is a dpfi

boosted_hatch_216

have you pulled th valve cover?

bitchasscracker

i'm not a dumb *** i pulled the valve cover and it is a 16 valve head and it says pm9-4 on it

Bone1

STD was a 16v 70 hp turd, only the HF D15A6 was 8 valve.

70hp turd to 90 hp DX turd = Cam/ECU/throttle restrictor below the throttle body.......

MPFI swap = 102 hp........

Guy-Fast

word

bitchasscracker

thanks i'm just going to be using this motor as a boat anchor.......


i was just wondering what was up with it

jung4g

pull the cam out if you take the motor out, they are funny cuz the lobes look round. It's almost hard to tell which is the bearing surface and which is the lobe. The cam from the DX d15b2 looks big in comparison, but for reference that casting is the same as the a6 head from the si, just a different cam. Drop in and Si cam with the MPFI swap and they aren't bad motors. But don't push them much more than that. Stock ~70hp flywheel --> Add si cam and mpfi swap with i/h/e looking at maybe ~110hp flywheel (basically a 1.5 si motor). Pull 57% more power out of any motor and it won't be happy forever.

I got lucky, when I bought my 89 std, the dealer didn't want a 4 spd on the lot, so he swapped in a 90 5spd w/ 90+clutch, DX tranny, but still better than 4spd.

mattnteclipse

ive got one hanging out in a dx i wrecked. Id love to throw the si cam in it and put some itb on it for a daily driver. be pretty fun fartin around shitville.