Dragaholic

iTrader: (180)

I converted from a 6 speed to a 200-4R. I have the TCI 29.1 SFI approved flexplate, Yank SS4000, fully built 200-4R by Mike Kurtz at Century Transmission, stock 10 bolt w/ 3.42s, most bolt ons, C2 cam, Spohn chromoly suspension-LCAs, PHB, TA, rear swaybar, SFCs, Hals in a 4 corners w/new R series in the front, Denny's nitrous ready shaft, Bogarts, and ET Streets. Weight of car w/me in it is 3470 lbs. Here were the results:

Best:

60 ft. 1.62
1/8 7.32/94.99
1/4 11.52/114.34

Whats wrong...its seems that theres something going on in the top end. It felt kinda weak towards the end of the track. Any ideas, suggestions, cures, etc.? Thanks.

SDB

iTrader: (7)

looks good to me! seems hooked up for mid 11's at only 114, but the 60 ft. isnt that great.

Wesley SS

It looks a little slow but a very solid mid 11 car some people run that time with stall only maybe try a 3.73 gear it may give you a little more top end.

boomcase

With 3.42s and ss4000 that 60ft seems weak, were you hooking up good.I figure that setup should be good for 1.55 60ft. But nomatter what that still is a good time.

98SS Blackattack

Your 60ft could improve alittle. I think its a pretty good et for your mods.

Dragaholic

iTrader: (180)

Everyone so far has commented on my 60 ft...Im almost positive that it didnt spin. It felt really good leaving the line, how noticeable will slight spin be because maybe I missed it. I thought that 1.6s were good, but it seems that everyone is leaning towards 1.5s. That was just my first night out, but as I was looking at my slips, I think the car has 1.59 in it, but 1.55 may be hard. Do you think the SS series hits hard enough for a mid 1.5 60 ft.? Also, I think the car has 11.4 in it with the way it sits, but who knows...if I get this problem fixed, I might be able to hit 11.3. What do you think is wrong with the car because it seems weak on the top end? Ive been told that the mph should be a little higher. I hope to get this fixed for next Friday. Thanks.

StreetStalkerZ

iTrader: (1)

Looks to me that your getting some KR on the topend of the track and slowing you down so i would Atap it to make sure or your timing is not getting lower as your climbing in the RPMs.

With that cam you need atleast some 3.73s for it to start getting into the power band at the last few hundred feet of the track and if your running 11.5 ET streets with 3.42s then your crossing the traps with a gear ratio lower than 3.23 IMO.

Dragaholic

iTrader: (180)

How does the width of the tire affect the gearing? Its a 26" tall tire, which isnt much taller than the 285/40/17s I ran.

TA2SLOW346

iTrader: (3)

What was the DA when you ran those times? I would think if you ran 95mph in the 1/8 it might go 117 or 118mph

Dragaholic

iTrader: (180)

Whats DA?

StreetStalkerZ

iTrader: (1)

In drag racing you want the most gear you can run through the 1/4 on the shortest tire allowed for traction. A 26x11.5 tall tire on a 15" rim will swell to around 27" at 117-118 mph so IF your running on 15" Bogarts then there is some ET to make up by switching to some 3.73s. I would Atap a WOT run just to make sure your not running lean or getting major KR on the topend,just incase because it can't hurt. With your 1/8th mph you should be trapping 117+-118 in the 1/4 that is why i think that it's something in the tuning. To help with 60fts. the Yanks 60ft. harder with a lighter car so if your looking for more then start pulling more stuff out of the car.

A 95mph 1/8th gets me around 119 in the 1/4 but my 60fts. are 1.51s-1.52s and my car is 100lbs. lighter.

TA2SLOW346

iTrader: (3)

Also dont for get that 200r4s only have a 2.74 first gear and not a 3.06 like the 4l60e. If you would have a 4l60e and 3.08 gears you have more gear in first then a 200r4 with 3.42s.

Dragaholic

iTrader: (180)

So obviously I need to upgrade gears, what should I go to? Hopefully I can find someone to Autotap my car to see whats the problem. Thanks.

BAIN

iTrader: (5)

I didn't know that. Wow your going to need gears to get out the hole
I also agree that something is going on the top end(ie.. KR, fuel problem). If your trapping 94-95mph in the 1/8 you should be trapping alot higher in the 1/4 than 114.

Dragaholic

iTrader: (180)

Well Id like to see if there are some problems with the car, but MTI wants to charge me $75 to do so. I bought my tuning in January of '03 and that was way before the deadline on those who had to start paying $75 for each retune. Im hoping to find someone in my area who can Autotap my car to see whats going on. Its a shame that MTI cant take a half an hour to help me out. Ive never ran into this before until the new policy came about. I never abused the lifetime policy, so I dont understand why the good guys get punished for it.