Anonymous

How many people here run a Vig Multi-Disc converter?

I just bought a 3800 stall and it doesn't seem to hit the tires hard enough?
(not stalling at 3800, not sure exactly where, just low, like 3200?)

The car is an A4 Camaro w/3:73's it is 60'ing in the low 1.7's it did a 1.695 once NA. Race weight is 3500 lbs. Car has heads and cam.
(The car does have N2O, just havn't shot it yet with the multi, but is the reason I got only a 3800.)

I tried power breaking the car and everything, but it just dead hooks, no tire spin at all. (running 16" BFG DR)

All of the Tq management has been deleted.

I spoke to Vig and they were very nice and helpful.

They said the orifice could be slightly clogged in the lock up solenoid with dirt or something and that could be causing the the multi discs to drag ever so slightly, thus not flashing as high as it should?

Makes sense, but I was just wondering if anyone else has experienced this problem?

I bought the Multi so I can lock her up on the big end with the N2O.
I hope I don't live to regret it?

Any input or advice?

Thanks.

cablebandit

iTrader: (37)

i dont think mine shocks the tires hard at all. Mine was a 3200 multi...got the stall upped but it doesnt hit the tires any harder. I actually wish I still had the 3200 in it. Next time I have the tranny out, i will prolly go back down to 3200. I did lock the converter at the track though and my mph went from 132 to 136 BUT>>>>> i did see a boost increase when the converter locked. The 3200 drove damn near like stock too!

Anonymous

When you upped the stall from 3200 what did you up it too?

What number pump do you have? STR?

I went from a #6 pump on a 3400 stall Multi to a #7 pump with a 3800 stall Multi.
Both are stalling lower than advertised but they both may have the same issue (drag) because I haven't checked the solenoid, yet.
They want me to pull the solenoid out, and see if the car hits the tires harder. If it does it is the solenoid, if it doesn't, I need more stall. But all that is a hassle because I have to do my testing at the track, but the work at a shop.

Anyway, I did pick up a tenth and a quarter in the 60' going to the 3800 #7 but the car is still way off in the 60'.
Hopefully, it will wake up on the squeeze?

cablebandit

iTrader: (37)

mine was stalled up to around a 3700-3800. I have the #7 pump. My best 60' is 1.59on et drags with no traction problem

whitt1

I'm running a 10.5'' 3disc Vigilante in my Tahoe and I noticed that the multi -disc weighed more than the standard converter,I would think that the added weight alone would keep the converter from hitting as hard.

Tiger2o69

iTrader: (16)

I just installed a 3600 and after hearing that they are not under rated like the single disc, I wish I had gone to a 3800...

Actually in in the process of installing lol...

Anonymous

You see, We have the same converter with the same pump but you are heavier and you only have 3.23's and you are 60'ing quicker than me by about a 10th? You must be building some good boost off the line?

My car is dead hooking with 3.73 @ 3500 lbs?

Anonymous

Are you saying the multi disc was heavier than your stock, from the factory GM converter or heavier than a standard single disc converter from Vig.?

Either way that is a good point.

What was the weight diff.? Approx.?

cablebandit

iTrader: (37)

i am building 3-4psi at 2300-2500 rpms on the 2 step. Just flashing from idle only gets 1.7 60's. If you hit that joker with some N20 on the line, it oughta rip!!!!! I beat the **** out of mine..locked it at the track too.....the converter is made to take some abuse..like turbo/n20. Launch on the spray and I bet you will then be satisfied. I am gonna try some 3.73 gears as well soon myself.

Anonymous

I hear you Cablebandit that is my goal. But to be honest with you.

I wanted to 60' at like 1.50 / 1.49 all motor and run 11.00's or 10.90's
(The car is making 432 at the wheels on the motor)

Then I wanted to spray it into the low 10's high 9's (praying)
with say a 1.40 to 1.45 wheels up 60'.
I am not worried in the least about breaking anything and I will put on stickier rubber when I need it, but for now it is a moot point because I am dead hooking!

If I were to try to meet my final goal now, I would have pick up a little over 1.5 sec in the quarter with a 100 shot. (The car does go 127 - 128 mph with a 100 shot even with the lame 1.8 60's.) But that seems like a stretch.
The converter would have to work perfectly.
Like you said I need to launch on the spray to really see what it can do!

cablebandit

iTrader: (37)

it is made for the boost/spray...otherwise you need to switch to a n/a converter and not use the spray...wrong answer Look at it this way...at the track you are gonna want max et so spray it...on da skreet the soft hit may be a bonus and then ease on the spray.

Tiger2o69

iTrader: (16)

I love mine so far I wish I had gone bigger tho. ~3800-4000


btw the md is much much lighter than stock... Not even close. vig is about 20lb i think it was... stock is like 50..

LS1LT1

iTrader: (16)

Can't be that light, I heard that the base Vig is like 32 pounds and the multi disc version has to weigh more than that.

Tiger2o69

iTrader: (16)

Thats what it say on the shipping paper.. Maybe they weighed it wrong.. But I know for sure it was lighter than stock by a lot.. I picked them both up after each other and the vig even had fuid in it

LS1LT1

iTrader: (16)

The paperwork really said 20 pounds total?
Did it really feel like 20 pounds?
And this was a Vig multi disc correct?

Tiger2o69

iTrader: (16)

Sorry it was 32lbs i was thinking 23.. But trust me it was much much lighter than the stock one.. Because I remember thinking "less rotating mass"

Even After I drained the stock one and then put fuid in the vigi it was very noticably lighter. I was compared for the r. mass reason.

It was a multidisc 3600.

onfire

iTrader: (17)

My multidisk weighed 36 lbs dry.

Anonymous

Yeah well, it is going to get sprayed for sure no doubt.

It will fly or it will break!

I have a feeling it will go pretty good on N2O.

I just wish I had a little more NA. When I went H & C, I specifically didn't go
with an N2O cam because I still wanted good NA ET's.

Now it looks like I should have gone with the N2O cam, it probably would have been just as quick with less lift. (which means longer valve spring life)

Anonymous

I would have to guess that the Multi Disc is lighter than the stock GM converter for a bunch of reasons but the most obvious is the fact that it is smaller in diameter.

That reason alone will also make the motor spin up faster.
(Mass is closer to the center)

Another common sense approach is that the MD is going to be lighter than the SD Vig. (less Discs = less mass) same company apples to apples.

But if you guy's are sure of the weights, please post them.

So the GM Vert. is 50 lbs and Multi Disc Vig. is 36lbs and Single Disc Vig. is 32 lbs?

Is this all correct?

onfire

iTrader: (17)

And I have a no disk TCI that weighs 25lbs dry.