hey that sounds good whitt. i am sure jim will let you know the next time we have a nice sized meet down here. although the last few we have had it has been only a few trucks. where as before it has been a nice assortment....

 

Sounds like a fast f'n Hoe to me

Fast knows about the driveability issues with that T/B, I am interested to see what they do to cure the problem.

 

I've tried several different times running a BBK 80mm TB on my Tahoe. I'm sure the quality doesn't compare to the one you have but they seem to suffer the same from being just too large. I had the same issues you speak of - not returning to proper idle, too touchy right off idle. I don't know about you but I like hot coffee in the mornings sometimes. The lack of resolution at low throttle positions also made the transmission very difficult to program for drivability. There just wasn't enough range down low to work with. My truck has to be smooth when I need it to be but also violent and scary at the other end of the spectrum. That will never let you get there. The stock one is fine for a roots or screw setup where it's on the inlet like that. The way I see it if you need more air you can always spin the rotors faster.

As far as your traction issues I don't think I have anything to offer unless I get some QUALITY video to see exactly what you're talking about. I also encourage others to take a similar stance on this. muuhhaaahaa....

Once you've got some traction I want to see a picture or two with some daylight under the front wheels.

 

I might be able to comment on wicked application of torque through a 2wd tahoe. The P&A guys here know me as Y2KLimited, the insane funeral director from NYC.

for some reason my LS1tech account is all F-d up and I need to talk to the powers that be to get a user name vs. email, but I think a few of you guys will recognize the truck.

I have a 2000 (obs) tahoe limited with a 502 ramjet, and a bottle. For the tranny I have a 4L80 with a 2400 stall, 4.10's in a 14 bolt 9.5 semi floater with an eaton posi. Depending on my rear tires traction can be perfect to non existant in first and second. Simply put with 28x12.5 Et streets even at 30 psi I can't spin the ***** and the truck just dead hooks and lifts.

case in point.



thats obviously sitting at rest, with a smallblock behind the back seat, so loaded ride height.



thats beating the truck up last year with the swaybar removed on the track before the nitrous, so the slicks can obviously make things happen.

As for street tires. Right now I have stock size bridgestone dueler revos on the slug because there's a solid inch of ice over all the roads in NYC. The rims in the first picture are 18x8 and 18x10 torq thrusts with pirelli scorpion zeros on them. In my research, I've found that they're better but even with 285x50's on there they still go up in smoke without the bottle for first and second. Add in the nitrous......and well I just don't bother with nitrous on the street tires unless I'm really looking to be a fool. I know my results would only be worse with a real convertor (but I've made the truck more of a tow rig than bracket racer at 5800 lbs)

I know way back when when I had a girly lil 350 in there with a procharger on it and I grenaded the rear end and tranny all at once, my buddy messed with the pinion angle on my 14 bolt. On bald (read no tread) street tires I would rip 1.8 60 fts with a 2800 stall convertor and 4.10's (and with a centrifigual this was with no boost, so thats was one redeeming quality). James B on the other hand was doing smoke shows off the line with his whipple on his 350 and wider tires and a similar convertor with 4.56's. Both of us have 4dr 2wd obs trucks.

So I'm going to second that whole QA1 shock theory. I know on my 55 chevy (which is getting engine #2 from the truck which should push 800-900 horse on pump gas) we're running QA1's on my buddy's recommendation. The other thing I'd suggest is finding a shop that sets up cars for street racing (yeah everyone can bitch me out about the illegalities) because if they can get cars to dead hook on the street, they sure as hell know their stuff. (as in my buddy who setup a smallblock 86 caprice wagon that blew my doors in, while I was driving my Z06 on slicks which runs high 11's, when I saw all of this guy's front wheel/tire out of my passenger window I had some worries)

A comprimise for the street could also be a nice big meaty set of drag radials. What are you working with for wheel/tire sizes right now? Another thing might be downgrading the 4.56's but that all depends on trap speeds through the quarter, less gear might let you get more traction, and with the radix hitting full boost way down low, its not helping the traction situation.

and as a side note I'm glad there's another retard in the world trying to make a 6000 lb truck fast. Sounds like you just gave me motivation to try out the 200 adn 250 jets on mine, well if this friggin ice ever melts.

as for torque twisting the trucks, my buddies all say the same thing, the vette is kinda scary when I get on it (I have a habit of leaving the TC off and not getting off the gas as it goes sideways) but the truck.....well the entire dashboard twists, the alpine flip up monitor can't hold the screen vertical anymore, the damn head unit pretty much slides out of the dash after about 10 launches, torque is fun ain't it?