Back to the track...

[Doward]

Nice, cool night.

Mods:
High flow custom air filter (4" intake to the AFM)
3" turbo elbow +
3" downpipe +
3" exhaust
No cats
10psi stock CT26
Stock IC piping etc etc

New best -
60' - 2.394
330' - 6.707
1/8th - 10.198 @ 70.55mph
1000' - 13.212
1/4 - 15.753 @ 88.86mph

I'm still not running where I should be! I'm not hitting fuel cut, everything seems to be checking out ok. I'll know more tomorrow, when I get the laptop out there to datalog the wideband. I bet I'm still pig rich.

Eh, better than my old 17.8 (only difference is the turbo-back 3" exhaust)

[Doward]

Ahaha! I was 13 degrees retarded - ALSO a little problem, were the tops of the Autolite 3923's (you know, the plugs everyone recommends on the 7M?) having corrosion - as well as the spark plug wires themselves.

3923's vs NGK 2330s

http://members.cox.net/doward/plugs.jpg

Same difference in height, of Autolite 5503s vs the 3923s. I'm not recommending the Autolite 3923 plugs to anyone with a Supra anymore - go NGKs (2230 for standard plugs) or 5503 Autolites.

I believe the plug wires were unable to fully seat on the spark plug - causing some arcing, and the corrosion I found.


Also, after setting my timing correct to 10 degrees BTC (rather than 3 degrees AFTER) the car runs a TON smoother, and seems more powerful from 3000+ rpm. Another trip to the track will tell (hope to break 90mph!)

[tissimo]

Ahaha! I was 13 degrees retarded -

Another trip to the track will tell (hope to break 90mph!)

with those mods should break 100 (or be really close) i went 98 hitting fuel cut in 2nd and 3rd shifts and 100 when i didn't with 3" exuhast and 10 psi

fwiw my tps was bad when i first got my car running it only trapped 83 mph.. come to find out the bad tps when i set the timing I set it to -5* or so.. fixed it.. ran a 91 mph.. bone stock.. so retarding the timing makes a huge difference..

[xXxICExXx]

yea with those mods you should be doing mid 14s at just under 100mph.

[Doward]

Ok, back to the track *again*

Same mods as before, just fresh plugs + wires + timing set correctly.

Quickest time:
60' - 2.258
330' - 6.386
1/8 - 9.768 @ 72.88mph
1000' - 12.690
1/4 - 15.154 @ 91.65mph

Fastest run was a 15.254 @ 92.69mph.

I'm happy so far, considering my beat up stock IC + rubber piping, and 200k miles on the motor :D

[tissimo]

Ok, back to the track *again*

Same mods as before, just fresh plugs + wires + timing set correctly.

Quickest time:
60' - 2.258
330' - 6.386
1/8 - 9.768 @ 72.88mph
1000' - 12.690
1/4 - 15.154 @ 91.65mph

Fastest run was a 15.254 @ 92.69mph.

I'm happy so far, considering my beat up stock IC + rubber piping, and 200k miles on the motor :D
pretty good.. with the old rubber piping i bet there are some boost leaks.. fix those and you'll go faster.. not bad though for a 200k mile engine