SPRAYED 01

iTrader: (22)

I am finally sending my 4l60e in for a refresh. Its an FLT level 7 with a Vig triple dish 3600. Nothing really wrong with trans buts its been going strong for 6 seasons and is starting to slip on high boost 2-3.

I am going to send the converter in during the refresh just to get looked at and maybe rebuilt. I am wanting a tighter feel on the converter. Maybe its loosened up over the years, I dont know.

Its a t-brake car too and was thinking something closer to 3000 rpm. I dont like the laggy feel on the street.

Who has some what of a tight converter and how do you like it at the track?
Its a 3900lbs 9 second car.

Alex

Nitroused383

iTrader: (10)

My converter is a neal chance nitrous converter which is super tight. I'm going to send it back to them so they can loosen it up for the turbo setup. Right now on the t-brake it only goes to 2600 rpm where it slowly builds boost over about 4-5 seconds. I can make 10 psi by 3200 rpm but it takes way too long. It's nice on the top end because converter slip is only around 2% and I've been able to go almost 147 @ 7100 rpm with my 3.90 gears. If they could leave the top end as tight as it is now and loosen up the lower end about 500 rpm it would be perfect.

I've still been able to cut 1.4 60' times with it I just want to be on the tbrake the least amount of time possible. That trans fluid gets super super hot the longer you are on the brake.

SPRAYED 01

iTrader: (22)

Thanks for the info. Car is super fast regardless.

My turbo spools super quick so I think I may be able to get away with something tighter and still build boost on the t-brake. I have my 2step set to 3200rpm and it builds it almost instantly on the brake.

Forcefed86

iTrader: (4)

Alot has to do with the part combo, cam timing, and turbo kit in general. I'm running a 14 blade stator in the 9.5" PTC which is crazy tight. (was running 17 blade prior) This net me under 2700rpm flash/stall on a 4.8 and under 4% slip up top and a 1600+ RPM drop on the shift.

Next year I redid the hotside in 2" , advanced cam, 2-step, and trans brake. Also installed a 370" engine. Now it comes up on boost plenty fast. At 159ish and 3100lbs on 1lbs of boost and see 950 rpm drop on shifts now.

gametech

iTrader: (1)

Please post results/info from the Vig rebuild. I have only dealt with one of them, but the when it was rebuilt due to a transmission failure, the results of examining the original build were quite interesting (not in a good way). I'm curious if this was an anomaly or not.

Heavy H.P.

I have a 3200 Vig in mine and I'd also like to see where this goes. I talked to them and they swear I don't have to go with another company just send it take to them and they'll take care of it. We will see.

SPRAYED 01

iTrader: (22)

OK so guys are sating you have had issues with your vig? You sent it in and what exactly was wrong with it?

a05c

Converter is pretty tight, this is from last Saturday.. 5.0x with a soft tune up in it. We use a dump valve setup to aid in spool time.

Bolt together PTC with an aggressive stator in it. Usually comes up to the "chip" in 3ish seconds. (7-10 psi)

Forcefed86

iTrader: (4)

I had the single disc lock up VIG 3400. Worked great building boost down low and I could lock it up cruising so that part was nice. It was horrible slip wise up top at the track though. I’d see 18% thru the traps at 6k around 600whp and 3000lbs. This was a low RPM V6 setup so I knew it would be a little loose up top… but 18% is pretty ridiculous. I didn’t lock it up with the single disc at the track, thought I’d break it. Dropped in a PTC spec’d for my combo next season and slip dropped to 7%.

Can you still not lock it up with the multi disk converter at the track? I don’t see the appeal of a “tighter” converter if you can…

gametech

iTrader: (1)

Like I said, I have only dealt with one of them, so I am not going to build a bandwagon for people to jump on. I honestly have no idea if it was a one-off problem or par for the course.

Heavy H.P.

My turbo system isn't on my car yet. But my Vig 3200 has been in the car since 2001 with out a single problem

Forcefed86

iTrader: (4)

What kind of power and weight and have you calculated the slippage thru the 1/4 mile? I never had a problem with their converters, they just didn't couple wellup top compared to others...

Heavy H.P.

No ive never calculated it I don't know how. Car was heavy before I started this phase some years ago it was 3800lbs with no one in it.