Post
by SGT BRAD » Tue Nov 17, 2009 3:12 pm
ok, folks. i was waiting to be able to give more info, but i'll let you know what i know so far. the motor is running and has made 50+ pulls on the dyno. i've heard it running and unless darrell is revving up another car and claiming it's mine (i don't believe this) it's holding together this time just fine. there have been 3 issues that have delayed the full dyno tune. 1. there was an interrupted tach signal that turned out to be a cracked cam sensor magnet. took a day to figure out. 2. being careful this time not to grenade the motor, darrell and clem noticed that the timing advance that they were programming into the dcr built ms wasn't accurate. they hit it with a timing light only to find out that the motor was actually running almost 10* more timing than what was entered into the ms. whoa...well right there is more than likely what grenaded the 2.2 13.5:1 motor. i'm not sure how they've sorted that out and whether it was a dip switch setting, etc. 3. there was an intermittant miss that would cause the motor to break up b/w 5-6k rpms. 3-4 days of fooling around with it determined that it was a ground issue from sharing a common ground with the pcm, ms, etc. that's now fixed and darrell says the motor doesn't miss a tick to 8500+rpms.
i spoke with darrell last friday and the motor was very fat with little timing added while they worked on the miss. they tore apart 1/2 of the wiring and had the ms apart and on the seat when they realized the common ground issue. monday was supposed to have been the "put it all back together" day. i'm waiting to hear from darrell now about what it's done for final numbers.
i've been so busy that even if i wanted to i don't have time to go get the car. i have always believed the best in darrell and will continue to do so. it's been very frustrating, but in the long run dcr has ended up losing money on this deal and i've gotten quite a motor out of it. mind you i would expect it. it was goaded into this build and i would expect nothing less from darrell than to step up and do the right thing. i still pray that i'll be surprised by the final numbers.
now the big news is that darrell did screw up the compression numbers. he thought it'd be around 10:1 or a little more. as it turns out it's 9:1!!! whaaaa??? essentially i'll have a 200+hp 87 octane daily driver. not too many of those out there. whatever number darrell ends up with is slightly less than what the final number will be. i still have a fully custom amm intake sitting at home that will certainly make more power than the stock based r/ternie box intake.
so here is where we sit, 9:1 compression, 2.6 fully built bottom-end capable of holding 1000hp with crank straps, etc, 197hp and 180tq (not final tune). i expect 205 hp to be about where it ends up with the r/ternie intake and hopefully 210 or so with the amm. if i had the heart to do it, i think that a set of 11:1 or 11.5:1 pistons would really wake things up. i hate to speculate but certainly it would make a streetable 230-240. maybe it will make more on 9:1 and maybe it would make alot more on 11:1+ pistons. i'm not sure why the numbers are low. i'll just wait and see what the final tune says.
as it stands i am going to hopefully get the car and drive it for a thousand miles or so. after that i'll probably boost it with a bw s256 turbo and 18-20psi. we'll see what it will do then.
i will post more as i hear. at least things are running properly and i can see light at the end of the tunnel.
brad
ooh...there's a glimmer of the dream left!!!