Track day

[Scoobum]

Jim is absolutely correct that you'll have to spend large for a high quality NL convertor. The 9.5 PTC is likely the best for driveability and coupling on the big end in a NL configuration. Do some research on the other board...the slip rate is fairly low.

I mention the AC convertors cuz they can be had cheap...as everyone has jumped to the 9.5 PTC NL. The AC works well in a low HP car like mine...and a high HP car like Rich(Bird) here in Toronto. Timeslips on my own car from 2 weeks ago have it running 100 mph at the 1/8th traps with this 16930. Bird went 9.69 at 138 with the 19930. MPH is the indicator of how well the convertor is coupling on the big end. If you're on a budget the AC is tough to beat if you can find a good used one. The 16930 is incredibly tight and drives like a stocker on the street. You really have to tune low gear to get it loosened up to spool this 6262.

[Steve Wood]

I remember way long ago when Yaklin and the other GM guys were running the 16930 with great success and a lot of the experts were explaining why a NL was no good...after many years of when that was what all converters were.  People get enamored with "technology" at times without really understanding what it does.

Now, we are seeing more and more of the old back on the road again.  Sometimes with the same name and sometimes with the new and improved label stuck on it at a higher price.

[1 RARE T]

The mp/h is low. Thus h/p is on the low end due to a tuning issue. I went 11.8's all day @ 115 on a Ta- 49, stretch intercooler , stock converter all on 26" tall tire.

Keep your money, tune for power and watch the times fall.

My bet is its lean on the top

[Scoobum]

The mp/h is low. Thus h/p is on the low end due to a tuning issue. I went 11.8's all day @ 115 on a Ta- 49, stretch intercooler , stock converter all on 26" tall tire.

Keep your money, tune for power and watch the times fall.

My bet is its lean on the top

Mike...what was the convertor you ran...and it's slip percentage?

He could very well be making decent HP...but with 14 percent slip he's losing alot.

[Steve Wood]

he was crossing the line at 5400+

That blows the entire not making hp argument...got ta read the posts

[1 RARE T]

Then that converter ain't worth a pinch of coon shit.

I had a stock one with whatever slippage?

You don't need anything other than stock at this power level.

[1 RARE T]

I'd bet the rear gear isn't 3.42.

[Scoobum]

Then that converter ain't worth a pinch of coon shit.

I had a stock one with whatever slippage?

You don't need anything other than stock at this power level.

Mike, he'd need about a 2600-2800 to spin that turbo. What's a D5 come up to at 0 boost?

[Steve Wood]

Some got the D5 to spool a 49.

[Scoobum]

Some got the D5 to spool a 49.

.63 Garret I assume? Not sure how close the 44/49 is to the 5931.

[Steve Wood]

I think TTA850, or whatever that Mike's screenname was was pushing his TTA to 11.5's with a PT51 and a stock converter-  not many did with the chips of those days

[good2win22]

I spooled the 49 with a D5. 1.6's in the 60


The PTC converter just works and works well. They, the coverter people, just want too much money for it. $1100 from Dusty

[Scoobum]

1100...plus 30 percent exchange rate...shippin g...blah blah blah.

[good2win22]

1100...plus 30 percent exchange rate...shippin g...blah blah blah.

There will not be one behind my 109. I challenged Jake to make me one just like it

[Shimy87]

Not concerned about HP, I'm making adequate power to get in 11"s. Not an expert tuner by any stretch but I think I get it enough to have a pretty descent tune. Didn't save any logs from weekend but had 0 knock, crossing the line had O2's in the low 780"s. Could probably go leaner but I'm conservative. First gear tune had me with 1.6 60 ft so I'm happy with that. Could probably leave harder there also but again, conservative. Rear is 3.42

This winter will get tires. already looking for a converter. If anyone see's a AC16930 please let me know. If I gotta I'll spring for the PTC 9.5 but a grand is a lot of green!! Jack Cotton has helped me out a few times, he sells converters, anything that works good for what I want there. They are Pro Torque 9.5 NL's.

Thanks guys!!!