ramboteamjon
Well-Known Member
- Joined
- Apr 21, 2008
- Messages
- 3,010
whats up with your rambo? not good news again?
Yea got bad news again. A month ago it was on the dyno at henrys and it ran 177bhp remember, well this time it ran a 173bhp with the exhaust sorted, changed oil, cold air feed to teg air box, new plugs and leads and dizzy cap and rotor arm! total mystery! the torque figure is still at 115 which is about right.
Compression is 225 on all 4 cylinders
timing is ok
henry even tired a different p28 ecu with a B16B base map on it that guranteses over 190bhp with a header and exhaust. So when my car went on the dyno with that ecu my car just rejecting the extra fuel and spat it out the back and still made 173bhp! WTF!!! obviously something is not right, full throttle issue??
lambda is fine
plugs are fine
henry said it aint burning oil at all and no blue smoke on vtec
I showed my graphs to Andy Forrest (subaru tuner) and he said becuase it is running so rich up top (11.2) it must be something restricting the air flow?! Throttle body maybe?
just had the IACV cleaned so not that.
Few folk have said valves not seated properly or worn bores? but would that not cause my compression to **** up?
Henry and pimpin reckon it could be ek4 cams or something like them that have been fitted by a previous owner and thats whats holding the power back? they said it could be a re-stamped block but I checked my block compared to my mates ek4 and ek9 blocks and its defo the B16B as the block sits higher than the gearbox.
I contacted the person I bought the car off and he assures me he never touched anything internal on the engine and I believe him as he was a very genuine guy and we still keep in touch after 2 years. dont know who brought the car and when into the country and I obviously have no history of what happenend to it in Japan as I got no papers whatsoever with the car so god knos?
Anyone got any ideas? clue? please?
I am booked back in with Henry in Nov and he wants to take the head off and have a look to see if there is anything suspicious so fingers crossed! the thing is it drives perfect and pulls great becuase of the final drive! imagine if it was running proper power with a tune, it would be amazing!
total head scratcher mate, henry will get to the bottom of it though
Cheers man I hope so!