BAIN

iTrader: (5)

I upgraded from my TCI 3800 to a TCI 4400 on my stock internal car and I think I need to do some adjustments to the shifting. With the shift points where they were with the 3800 the car is slower by about a tenth in the 1/8th mile I'm shifting at 6100 and like I said it's just slower.

What do/did you guy have your 4400 shift points set at? 1,2,3 mph and rpm to shift and also what what about the rev limiter setting?

WILWAXU

iTrader: (6)

With a Yank TP-4400 I ran the stock 2001 shift points, once the HPP was available I tinkered with the rev limiter and shift points.

I eventually ended up with a TP-4200 shifting at 6200, rev limiter set at 6600. Tuning for my stock internals setup was Ed Wright's stuff.

BAIN

iTrader: (5)

So what your saying is that the shift points shouldn't make much difference between the 3800 and 4400

Ragtop 99

iTrader: (7)

The shift points should not make much difference on stock internals. I used 6200 when I was stock internals.

Did your 60' improve? have you factored in weather, track prep, launch technique, etc?

BAIN

iTrader: (5)

60' didn't improve mph was down by 1mph and e.t. down by a tenth. I always correct my times for sea level just to see if I improve over the last corrected time.

Maybe I just need more time behind the new stall. I only got to run it 1 time with no adjustments to shocks, air pressure, and launch RPM, but being down on mph and e.t. for the corrected times confuses me

BAIN

iTrader: (5)

Examples of times from the week before the 4400 and the week after the 4400.

TCI 3800
11/19 DA= +861'

60'______1.62(spinning)
330'_____4.81
1/8______7.55@89.84mph

Corrected for 0' DA:

7.49@90.65



TCI 4400
11/28 DA= +949'

60'______1.59(felt like a dead hook)
330'_____4.85
1/8______7.58@88.86mph

Corrected for 0' DA:

7.51@89.75mph

Any ideas???

BAIN

iTrader: (5)

Update:

Went to the track last night and played around with the launch RPM, air pressure, and shock settings.

I figured out the TCI 4400 liked to be stalled up more than flashed. 3000 rpm seemed to work the best I ran a 7.36@90.8mph w/ 1.52 60' . The DA was -469 which corrected is still off my best by .03 e.t. and 1.26mph
Maybe the 4400 ate up some more hp over the 3800. I will find out Sat. when I dyno it again.