SpeedFactory 2010 Sleeved/Forged D16 build
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Joined: Nov 2007
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From: Tacoma, WA, USA
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Joined: Oct 2001
Posts: 1,158
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From: SpeedFactory, WA
Re: SpeedFactory 2010 Sleeved/Forged D16 build
Thanks for all the support guys! This really sucks but we will make the best of it, as there is always something learned from failure. We're not giving up on it.
We were experimenting with extremely loose bearing clearances on this build and that may have played a role - we did note lower than normal oil pressures. It was doing fine at lower boost levels and 9500rpm revlimit.
The mis-hap on the dynojet was a bad combination of events all at once. It involved a blown fuse on one of the fuel pumps, dynojet pressure sensor being T'd into the vac line to the FPR without zipties and blowing off and a resulting super lean AFR with boost skyrocketing to 40psi and 10K rpm, and having the exhaust valves contact the pistons all at once. Obviously there are alot of factors that come into play here and more to the story, but that's the short and sweet version just to give you an idea of what happened.
Learned a few things and got some good data from the setup while it was running. I already have some nice changes planned for the motor to improve on what we already had built.
As for updates: After a long day and night of thrashing we were able to get the motor apart, rebuilt, and everything back in the car and ready to tune tomorrow morning (actually this morning at this point)!
Maybe have some further updates tomorrow (today), if I get the chance. I need to get a few hours of rest...
Tore apart at noon:
Proof of Vitaras in sleeved block.
We were experimenting with extremely loose bearing clearances on this build and that may have played a role - we did note lower than normal oil pressures. It was doing fine at lower boost levels and 9500rpm revlimit.
The mis-hap on the dynojet was a bad combination of events all at once. It involved a blown fuse on one of the fuel pumps, dynojet pressure sensor being T'd into the vac line to the FPR without zipties and blowing off and a resulting super lean AFR with boost skyrocketing to 40psi and 10K rpm, and having the exhaust valves contact the pistons all at once. Obviously there are alot of factors that come into play here and more to the story, but that's the short and sweet version just to give you an idea of what happened.
Learned a few things and got some good data from the setup while it was running. I already have some nice changes planned for the motor to improve on what we already had built.
As for updates: After a long day and night of thrashing we were able to get the motor apart, rebuilt, and everything back in the car and ready to tune tomorrow morning (actually this morning at this point)!
Maybe have some further updates tomorrow (today), if I get the chance. I need to get a few hours of rest...
Tore apart at noon:
Proof of Vitaras in sleeved block.
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Joined: Feb 2004
Posts: 910
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From: Phoenix AZ
Re: SpeedFactory 2010 Sleeved/Forged D16 build
Not really into single cams but this build get me wanting to build a S.O.H.C, and you guys do some awesome Fab Work! In for Dyno# and Tracktimes.... GOODLUCK GUYS!
Re: SpeedFactory 2010 Sleeved/Forged D16 build
I have the .040 Tilton FCV in the Accord for Kevin. Washing the car and waiting for LEED to call me for a tune on the way down there. See yall tomorrow :O)
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Joined: May 2005
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From: the sway, NW
Re: SpeedFactory 2010 Sleeved/Forged D16 build
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From: bellevue, wa, usa
Re: SpeedFactory 2010 Sleeved/Forged D16 build
and at the last minute. the shop was going full tilt today.
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Joined: Oct 2001
Posts: 1,158
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From: SpeedFactory, WA
Re: SpeedFactory 2010 Sleeved/Forged D16 build
635whp/421tq @ 38psi
(We did get video of the pull, probably get it up next week after IFO).
Got the new rebuild started up this morn, performed the break-in on the dyno, changed the oil and started going for it. Initially I was quite saddened by the dramatic loss in power at the same boost levels, but it's to be expected with such low compression and a much lesser head than before. So we just kept upping the boost until we maxed the dyno in 4th, then switched to 5th gear and kept upping it again until we about maxed the dyno in 5th too. Stopped there since we were already asking an awful lot of the pistons.
The 7.5:1 c/r definitely takes alot more boost to make the power, that's for sure. And the other head with 1mm OS valves definitely made quite a bit more top end power. But I can't really complain about the power level for what it is! It just took a LOT of boost.
Can't wait to see how she does tomorrow, weather looks very promising!