Promotech Powerbox Tbi - coming soon...experiences?

[rlb159]

Hey guys,

Excited.

[lovelyred159]

Clutch!!

[RomeoRaiderZ]

Looks identical (including figures quoted on their website) to this one : TMC Motorsport - Car Products - which I've had fitted to mine for 4 months now and boy, does it make a difference to the already pretty impressive mid-range performance, . When you drive normally, it even improves fuel economy by about 10%, . When I had to remove it temporarily for a visit to the dealer (warranty repair to the suspension) I thought that the handbrake was stuck on, it felt so sluggish by comparison.

[rlb159]

Clutch is probably only an issue if you like slugging with it

[RomeoRaiderZ]

Originally Posted by rlb159

.....How is 1st and 2nd gear performance changed? - find it questionable at the moment (car seems much quicker from 3rd and upward)

Agreed. With the increased torque, trying to boot it away from a standstill has the traction control light flashing like a distress beacon and the steering wheel squirming as the differential tries to sort it all out, .

So I tend to pull away in 'sensible' mode then above 30mph (50kph) plant the right foot at which point it accelerates like a fighter-jet on reheat, . I've given some pretty 'meaty' motors a big fright with that when I suddenly launch towards the horizon, .

[rlb159]

Yo Romeoraiderz -

[RomeoRaiderZ]

PM sent

[rlb159]

Experiences anyone - tbi related?

[PeterK159]

Installed my box a couple of days ago. Decreased mpg with 15% or so driving long distance slowish. Pulls really great from 2000 rpm. I will put it the dyno and compare some acceleration values soon, though, to get some hard data. No probs as u describe. Very easy install.
Cheers
Peter

[rlb159]

Booom!