Torenno Performance
Junior Member
- Messages
- 716
DBW works on the TCU rather than the ECU.
For sale - GS Formula Dynamics DBW Enhancement Module for sale
- Thread starter R8NAN
- Start date
DBW works on the TCU rather than the ECU.
Maser Sod
Member
- Messages
- 1,965
Grinzzz, I think you may be confusing the DBW with the ECM module. The latter can give higher BHP, but can also be optimized by Jeff for other configurations, such as increased torque only.
For those interested in the DBW, note that not all modules are the same. I found my original package too 'mild', and so had Jeff configure the switch to support not just an 'aggressive' but also a 'very aggressive' setting. This latter mode was absolutely perfect for me, but I know that the guys who service the car find it a bit to lairy for their liking!
Bugger! Missed it by 2 hours! Will be on the look out for another, they seem to come up on here from time to time.
Grinzzz
New Member
- Messages
- 925
Sorry, didnt make myself clear. I meant if theres different boxes for GS and 4200 it would be interesting to see if there was a difference. The only difference between a GS and 4200 that I know of is the engine bhp is 5-10 more in the GS. I thought everyone agreed that post facelift 4200s with updated software were identical to the GS in the drivetrain, or have I got that wrong?
Emtee
New Member
- Messages
- 8,446
Sorry MAF, yes I did buy it from R8NAN yesterday.
The GS has different throttle mapping to the 4200, as it has quicker shifting in stock format. That's why the FD DBW is very effective on the 4200 (as it was on my previous car), but less so (marginally) on the GS. It'll be interesting to compare the improvement once I fit it. If I recall the sales literature correctly, the few extra bhp in the GS come from the exhaust.
The GS has different throttle mapping to the 4200, as it has quicker shifting in stock format. That's why the FD DBW is very effective on the 4200 (as it was on my previous car), but less so (marginally) on the GS. It'll be interesting to compare the improvement once I fit it. If I recall the sales literature correctly, the few extra bhp in the GS come from the exhaust.
Emtee
New Member
- Messages
- 8,446
Absolutely, though so could any electronic tuner that can read the TCU. IIRC the guys that did your re-map offer it.
Maser Sod
Member
- Messages
- 1,965
I remember reading a few years ago that the very slight hike in horsepower was down to engine mechanics, not electronic settings. I'll see if I can find the article online that mentioned it.
[edit]
Here is some info off Wikipedia:
"[the GS] is powered by the same 4244 cc, 90° V8 petrol engine used on the Coupé and Spyder. However, the engine develops 400 PS (294 kW; 395 hp) at 7000 rpm due primarily to a different exhaust system and improvements on the intake manifolds and valve seat."
Last edited:
Maser Sod
Member
- Messages
- 1,965
The GS gear change IMHO isn't that great as it stands. The only good bit is the 'blip' on the downshift.
I'm not surprised you snapped it up, Miles. I've never driven a car with it fitted, would love to see/feel the difference.
mjheathcote
Centenary Club
- Messages
- 9,038
Maser Sod
Member
- Messages
- 1,965
Pose as an interested buyer and go test drive mine at Autofficina!
(On the off chance that you can be bothered to, the DBW switch is below the steering column and just to the right.)
rossyl
Member
- Messages
- 3,312
Surely it's not so much the software (which I presume can/was updated) but more so the hardware which I again presume cannot be so easily updated.
If the hardware is the same, can't you update the software so that it is the same as well?