PTC 9.5 NL Converter
- Thread starter ds4545
- Start date
The 9.5" is the ultimate converter from a performance standpoint. Very adjustable and very efficient. The quickest and fsatest TR's run versions of the PTC 9.5". I had 3% slip with mine at 133 mph. The 10" is a lockup unit that is available in two different stall speeds and is typically spec'd for cars running slower than 11.0 where the owner wants to retain lockup.
I agree with Bison. The 9.5 is customer made and spec'ed to your combo. I personally have the 10 L/U in the 2800 and love mine, but like Bison perfect for my power level. Just get with Dusty, let him know your goals with the car, and your combo. He will personally show an interest and guide you to what is best for your application. Dusty is the man!:biggrin:
Bobs rare 6
Member
- Joined
- Apr 11, 2004
The ptc 9.5 is awesome! Had a 26.5mph. pickup on the 1\8 at the track sunday! Also cruises at less rpm compared to art\carr conv. Later, Bob.
Im guessing thats a typo!! 26.5 MPH??? Mike
I think he means... he picked up 26.5 mph between his 1/8 trap speed and the 1/4 trap speed. How much mph you pick up.... is highly influenced by how well your converter "couples"....... a crappy converter will get smoked in the mph picked up between the 1/8 to the 1/4...... and you will be buzzing the engine up higher on the crappy converter....
Clear as mud?
Dusty Bradford
Well-Known Member
- Joined
- May 24, 2001
The 9.5 works better on both ends of the table. It will outspool and also couple better than the 10" converter. It's a purpose built converter designed to spool large turbos on small ci engines that make a lot of power per ci. A converter such as the 10" converters we commonly see reach a point where they can not couple the power and the converter will get very loose up top. The 9.5 is very difficult to "blow through" and was proven by Dave Fiscus on his 170+ runs.
The 9.5 can be daily driven because it behaves much better than the older 9" non locks so it's really the best thing out there IMO. You get a converter that's adaptable to almost every combo imaginable, couples well on street driven cars during cruise and will withstand more power than our V6's will ever make.
The 10" LU and NLU do have their place. They are roughly $400 cheaper because the parts inside are bought off a shelf rather than hand made. The 10" is proven to be a great converter for the more budget minded guys who are looking for 11.00 type performance. The key with the 10" converters is getting the combo right. Special attention must be paid to rpm range, engine size and turbo size on any engine but it's much more critical with the 10" converters. I have also seen several converters in the Buick world called a 9.5 but are actually what I call a 10" converter.
forcedfedv6
Banned
- Joined
- Jan 6, 2008
