RickClarke23

iTrader: (4)

I would love to see that write up of the TCI 4k and the Circle D because that is what is in my car and I feel I could be sacrificing some effiecincy on the big end. How much power are you going to be making?

omore01

iTrader: (1)

As soon as my Circle D comes in and I can get it installed, I will do a detailed drivability comparison write-up. I know I am sacrificing efficiency throughout the entire RPM range with the TCI converter. The motor should be putting down around 550 on the low boost setting (7 lbs). High boost should be just over 700 (14 lbs.). These are just really conservative estimates at the flywheel. I don't really care how much power it makes, just want some solid 10's at the strip, maybe a glory 9.9 pass. That and embarrassing the occational 600cc and 750cc crotch rocket.

chrs1313

iTrader: (24)

my dad had the same results with his 5000 230mm circle d too about the same as the pt4400...

oztrack

We have 2 cars in Australia about to start racing with Circle D 5000rpm 230mm converters

My VX Commodore with a 408 TFS235 and 3.73s on 28 x 10 x 15 Hoosier slicks. It will weight around 3650lb with driver

Willems LJ Torana which has a 445ci LS7 stroker and a Carey 2000cfm manifold 13:1 and 3.55 gears through a 9" diff. This car will weigh around 2800lb with driver

TXCAMSS

iTrader: (60)

Those should perform quite well with the Circle D 230mm converter.

We recently went out to our local track for some test and tuning. Our Camaro with the HKE 408 with TFS 235 heads running a 5000 rpm Circle D 230 mm stall went a new best of 9.91@136 mph. The 1/8 mile mph was 109 mph. It's about 3250#s with a Circle D powerglide. It works great for us and we have not had any traction issues at all. That's a winning combination

Please keep us updated on the Aussie cars Oz.

BTW- Here's a pic of the ET/MPH board for any one that wants to call BS I was shocked as well. The 230mm is obviously very efficient.

caddy03pimpin

iTrader: (18)

VERY nice write up and great info! What RPM are you shifting at WOT?

99Hawk262

iTrader: (19)

Resurrecting this from the dead with some extremely late information. I found the timeslips and got the DA from my runs. The DA with the Yank was -456. The DA with the CD 5000 was 1161. Not sure how that affects the data, but there it is for discussion. On that note, I'm still sporting the CD 5000 and I have no complaints. Memphis appears to be re-opening, so if that's the case I'll be heading over and running it again with some hopefully cooler weather. I'm also considering trying out a comparable FTI or Yanks newer PT4400 just for fun. I'll keep everyone posted.

Circle-D

iTrader: (21)

Looking forward to the new numbers, I think you will be very pleased.

Chris

meine96ws6

iTrader: (4)

Nice take off in that video clip.

SEB

iTrader: (12)

Well im going from a Yank PT4000 to a SS4000, Im also stepping up to 3.73 gears out back vs my old 3.42s. My car still has AC & is street driven on long road trips. Want to start doing the Hotrod Powertour. With the Yank PT4000 my best with TFS 215 Heads & Fast90/90 unported & all bolt ons including Elec W/P & UD Pulley was a 7.1@96 with a 1.56 60ft.

Hoping with the SS4000 I can jump out harder with the 3.73s & higher 2.6 STR out the hole. Hoping to run 6s N/A I will report back with results

Spellbound

My girlfriend has a CD 230mm 4500 stall in her 427 ci Z/28 and like the OP says in his first post, it drives amazing on the street for that big of a converter.

01ssreda4

iTrader: (96)

I did see the CD230mm on their website.