11SECSS

iTrader: (199)

Well I thought I'd try a VIG4000 after running my Yank ST3500 and here are the results. The only thing the Vig gave me was a slightly better 60 ft is.

5/6/06 ---- 5/19/06
YANK ---- --- VIG
1.671 - 60ft - 1.637
4.893 -330ft - 4.907
7.622 - 1/8 - 7.674
90.02 -mph - 88.24
11.989 -1/4 - 12.200
112.92 -mph -107.47

Both where done with the same tires /gas and the weather was a little better on 5-19-06 then 5-6-06.
So now I might try a friends TCI3500 to see how it compares to the YANK which seems to work the best in my car.Maybe if I had more power the vig would work better.Both times where done with 17" nittos and stock manifolds.

RyanJ

Did you lock up the vig? I know the Vig's (especially single disk converters above a #7) are known for being loose/inefficient.

chrs1313

iTrader: (24)

damn that is a huge drop in mph

chrs1313

iTrader: (24)

give fuddle a try i wanna see what it will do

11SECSS

iTrader: (199)

If I knew someone that had one I would but I'm not going out of pocket anymore just to try...I just put my ST3500 back in this morning now thinking of trying some SLP headers on the car to see waht the gains are from my MACS.

11SECSS

iTrader: (199)

PS my race weight is 3375 with me in car and thats with 17" tires ,6pt rollbar and the factory front leather seats.

empty weight is like 3180 street trim
so race trim would be under 3000 if I took out the bar and put a race seat in it and put some borgarts on again.

Smokinstorm

iTrader: (5)

Better air and still that much of a drop in performance??? Wow! Yank should be paying you to tell the world of your experience. I've got a Yank and I'll never try another converter especially after hearing this from you. I wonder what a PT series would do for you instead of the ST. I've got a PT4000. That's why I'm wondering. BTW, those headers I got from you were seriously the ticket. Thanks again for that deal.

RyanJ

Do you have a real need for testing inferior parts on your car? I dont think you'll pick up **** from SLP headers. The Vig stuff is good below their #6 (3200) stall, but you really need to lock them up to get near the efficiency of a Yank. The 5 disk converters work really well (similar % eff. to Yank).

JNorris

iTrader: (4)

I think your loss is more weather related than TC. What was the time you raced and Zip code of the location? I will look up the density Altitude (DA).

John

JNorris

iTrader: (4)

Also I have heard for years that the Vigilante converters are not efficient. I can tell you for sure that the Vigilante converters (2800 and a 3200) that I have owned were 91% efficient at 5000rpm and 94% above 5800rpm which is good.

John

11SECSS

iTrader: (199)

okay the runs with the yank where at Richmond Dragway , Sandston va 23150
and the runs with the Vig where at Virginiamotorsports , Petersburg Va 23803


heres a break down of the slips

VMP w / vig 5-19-06 zipcode 23803
1) 1.81 60ft = 12.39@108.05 @8:09pm
2) 1.63 60ft = 12.20@107.47 @8:50pm
3) 1.63 60ft = 12.26@106.61 @9:43pm track closes at 10pm

Richmond w/Yank 5-6-06 zipcode 23150
1) 1.67 60ft = 11.98@112.92 @5:48pm
2) 1.68 60ft = 11.97@113.01 @7:51pm


these track are about 30 miles apart from each other.I think the weather was better on 5-19 felt cooler outside.

JNorris

iTrader: (4)

WOW!

You had much better air on the 19th. I guess the DA was not the problem.


VMP w / vig 5-19-06 zipcode 23803 Alt = 200ft
1) 1.81 60ft = 12.39@108.05 @8:09pm DA = 1125ft
2) 1.63 60ft = 12.20@107.47 @8:50pm DA = 674ft
3) 1.63 60ft = 12.26@106.61 @9:43pm track closes at 10pm DA = 427ft

Richmond w/Yank 5-6-06 zipcode 23150 Alt = 150ft
1) 1.67 60ft = 11.98@112.92 @5:48pm DA = 1825ft
2) 1.68 60ft = 11.97@113.01 @7:51pm DA = 1147

11SECSS

iTrader: (199)

hey do you have link to where yo u got that info from it would be handy to save as favorite.
Yeah the vig just didnt feel fast up top like the yank does Maybe I'll keep it so when I do H/C I can compare again later this fall.

JNorris

iTrader: (4)

I get the weather conditions from here. Just plug in your zip code to get your local data
http://www.weatherunderground.com/cg...st?query=36117

Go here to get your track elevation. If your track elevation is not listed here call your track and they should know what it is. If not you will have to use a printed or software based Topo map to get the elevation.
http://www.staginglight.com/links/trackfinder.html

Here is the DA calculator. Just fill in the needed data to get your DA
http://wahiduddin.net/calc/calc_da.htm


John

WILWAXU

iTrader: (6)

IMO, that's a WAY too loose converter for your application, I bet it flashes 4800+. You would need big gears or a 9K redline to use all that.

bigbadblackws6

iTrader: (1)

cuz yank and fuddle rule and vig blows ball sack

Smokinstorm

iTrader: (5)

Serious question. If this is too loose of a converter for maximum performance, why are all but a couple of people on the fastest SI list running this much converter or even a looser one? I just feel like the Yank is so much more efficient up top that this is why the performance fell off so much.

11SECSS

iTrader: (199)

It flashes to about 4000-4200 but going down the track or road it just doesnt feel like it was pulling up top like my Yank did maybe I need to get a Yank 4000 like my old 01 SS had..... but I still cant beat this ST3500 I have in it right now seems to be a good all around performer.

RyanJ

He's making a comment about this specific converter. My vig #6 is a "3200" stall, but actually stalls (not brake stall) at 3800rpm. Vig #7 (3600) is actually a 4200-ish stall. Vig 4000 is probably right at 4800 like he said. Vig's are inexpensive, generic converters that usually are pretty inefficient. I have felt a 2800 and 3200 and seem them on the dyno only losing a few %, but once you get to that #7 or above...you really need to spring for their 5 disc setups to have it comparable to a Yank. A Yank PT4000 is specifically rated for an LS1 and tested accordingly. It stalls to around 4000 rpm. I think I heard vigs were rated to LT1's or some crap, but it doesnt matter.

JL ws-6

iTrader: (50)

Geez... with the air quailty differnence... can you say lack of converter effeciency?