Keep everyone up to date with how your project is coming along.
This is a customer/friend's car that I've been tuning for quite a few years through different setups (NA, N2O, 2 different turbos). But we recently tuned it on a new setup and got it down the strip, trying for 9's... Which should happen very soon.
The car is a 1995 Ford Taurus SHO, which came with the Yamaha 3L engines from 89-95. This motor, isn't too far from stock... The only engine modification are:
- 13:1 compression pistons
- Head Studs
- Reground cams
- Valve springs.
The current turbo is a 67mm Borg Warner S400, on E85/C85. It is running on an AEM Infinity, which although I've played with briefly before (on an S2000), this setup was completely one-off without a base map. I was happy to get it to fire up and driving from the comfort of my living room, half the country away as with as much tuning as I've done over the years, it was the first time I did it all from scratch. :) We dealt with issues, figured them out, fixed, and pressed on. The biggest issue was that we found that we had the wrong type of crank sensor for our wheel, so over 6k RPM, we'd lose sync and it'd throw timing into unknown. While trying to fix, it took us 24 pulls at 500+ whp to push a head gasket (which we pulled the motor that night, looked it over, and put it back together with new gaskets).
On the next dyno day, we had a freeze plug in the bell housing develop a leak and finally fall out at the end of the day. It was frustrating as we did not know until it let go and couldn't figure out exactly why the clutch would slip at times. That was fixed and then it went to the track for Street Car Takeover in Atlanta this past weekend.
Anyway, here are some pics and videos:
We made a good bit more torque than this on previous pulls, but I was trying to keep it flat and fighting a clutch starting to slip at the time. This is 14 PSI ramping up to 25 PSI. On the track, we ran it at 27 PSI.
Ended the day with a 10.1 and a best trap of 147mph. The next event should be faster... Not bad for a mostly stock motor from the 80's!
This car was previously featured on 1320 Video when NA with a 100 shot of N2O
And I think we'll see another feature :)
That TQ curve is glorious! Thanks for sharing!
1320 Video put this video out yesterday:
That last pass was on track for 9's, but the stock graphite gaskets have limited passes since they offer no support. It pushed two fire rings out of the way and sucked water, so this happened.
He's got new, copper gaskets coming and two rods to replace and we are still going to use this motor to get the firs 9! I have provided him with a few different maps to incrementally up the power and change he power band. Once we run a 9, then we turn it up like we don't care. :D