2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

446.4 Rwhp Tii

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Old Nov 19, 2002 | 06:46 PM
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From: Sarasota FL/Ft Lauderdale
446.4 Rwhp Tii

I just got back in town and found they had finally opened a dyno shop here.
So I went by tonight to check it out and set up an appointment for my third gen. While I was there I guy who gets work done at the same shop as me was just getting ready to run his T II. It has a Turbonetics 62 turbo as I recall and he built the both manifolds and set up the intercooler himself. He's running 550, 850 and 720 injectors. He's using a water injector driver to run the extra injectors. At the time I left the shop he was at 18 lb of boost and showing 446 RWHP with 380 TQ and flywheel hp of about 520. Nice numbers!
But no real power till over 4500 rpm.
I think he was going to make a couple of runs at 20 lb of boost for the fun of it.
And yes, I have a copy of the 446.4 RWHP dyno graph sitting here in front of me.
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Old Nov 19, 2002 | 06:53 PM
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Thats nice...
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Old Nov 19, 2002 | 06:57 PM
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Scan that puppy...
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Old Nov 19, 2002 | 07:14 PM
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Sorry, don't have a scanner. But when I go back to the shop I will see if can get one but on a disk.

It was pretty funny, the guy who owns the dyno doesn't know rotaries very well and thought the guy was full of it when he told him he would be running over 400 RWHP.
They were suitably impressed by the time I left. :-)
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Old Nov 19, 2002 | 08:25 PM
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Was it bridgeported?
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Old Nov 19, 2002 | 09:26 PM
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T62 should make more power @ 18psi !
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Old Nov 19, 2002 | 11:52 PM
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From: Sarasota FL/Ft Lauderdale
Capn', Street port.

Tec, show me the plot/s. His A/F was nice and it was a cool night.
I'm sure he would like to see some comparisons of another street port T62.
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Old Nov 20, 2002 | 12:21 AM
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Those numbers are retartedly insane! Would that have to have been on race gas? Or is it possible to run 18 psi on 93 octane? Safely of course.
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Old Nov 20, 2002 | 12:51 AM
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100 octane, but according to Tec his numbers are no big deal. But of course Tec has yet to put up.
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Old Nov 20, 2002 | 01:03 AM
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Originally posted by 13bpower
Those numbers are retartedly insane! Would that have to have been on race gas? Or is it possible to run 18 psi on 93 octane? Safely of course.
18 PSI in short bursts is do-able assuming everything is intact ... I.E. cool intake (great intercooler) Plenty of fuel to keep it from running lean (huge injectors or 6 injectors) but any expended period of time at that boost will get the EGT's so high you can detonate no matter what.

But at that kind of boost you will be going damn fast, damn soon .. so you really don't need to boost very long (I would say 10-15 seconds at a time tops)
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