ECU Chips

[gruffalo]

Just taken delivery of my new TVR power chip to go with the short induction tubes, are they easy to fit is the next question?

[Gazzab]

No instructions with it?
They are easy - remove the carpet section in passenger footwell.
Unplug ECU 'box'.
Take inside the house !
Unscrew the lid of the box.
Remove existing chip (pulls out).
CAREFULLY push in new chip but being careful not to bend pins.
Reassemble, refit.
Job done.

[TT Tim]

gruffalo said:

Just taken delivery of my new TVR power chip to go with the short induction tubes, are they easy to fit is the next question?

In a word - yes.

Just be careful that you:

a) Earth yourself

b) don't bend the pins either removing or installing the chip.

So what magic does the TVR Power chip promise, I'm very sceptical of 'ling distance' tuning, no substitute for live tuning IMHO.

Tim

[JensenA]

And reset the adaptives in the ECU Diags...

[gruffalo]

380 at the fly wheel, so assuming 15% loss through transmission 430+

I thinnk they may be a little optomistic but we will see, will stick it on the rolling road some time this year and see.

[headcase]

Make sure it goes in the same way as the old one came out, there is normally a notch on one end of the chip to signify then Pin 1 end.

[gruffalo]

Gazzab said:

No instructions with it?
They are easy - remove the carpet section in passenger footwell.
Unplug ECU 'box'.
Take inside the house !
Unscrew the lid of the box.
Remove existing chip (pulls out).
CAREFULLY push in new chip but being careful not to bend pins.
Reassemble, refit.
Job done.

Ok all nice and simple, how is the ECU held into the car, I seem to remember one person mentioned velcro?

[Gazzab]

The ECU silver box is normally velcored to the bulkhead by the passengers feet.
It will probably be a bit of a mess with 2 or 3 boxes dangling rather than properly secured.

[gruffalo]

Thanks all will give a go tomorrow at work where we have ESD facilities.

[Cyclone1]

gruffalo said:

380 at the fly wheel, so assuming 15% loss through transmission 430+

I thinnk they may be a little optomistic but we will see, will stick it on the rolling road some time this year and see.

380bhp at the fly is about 310 at the wheels.

Jules.

[Mr.Cerbera]

Cyclone1 said:

gruffalo said:

380 at the fly wheel, so assuming 15% loss through transmission 430+

I thinnk they may be a little optomistic but we will see, will stick it on the rolling road some time this year and see.

380bhp at the fly is about 310 at the wheels.

Jules.

So glad you said that Jules.

I was getting really confused

[dean_ratpac]

gruffalo said:

380 at the fly wheel, so assuming 15% loss through transmission 430+.

do you mean 380@ the rear wheels?

[dean_ratpac]

gruffalo said:

380 at the fly wheel, so assuming 15% loss through transmission 430+.

do you mean 380@ the rear wheels?

[Gazzab]

He does.
I would be very suprised (as would he) if a generic chip from Power would give the car 380 at the wheels (430 at the flywheel).

Maybe take the car to Raceproved dyno shoot out on the Chatsworth Saturday?

[gruffalo]

Yep, they said the last car they used the very same map on was 380 at the back wheels and that was about average, some slightly better and some slightly worse but all around that which is why the sell that as the generic map.

I will get it put on the rolling road some time but can't make it to Chatsworth which is a shame, what with Le Mans Classic plus a couple of other lads weekend it would not be fair on the OH leaving her with kids and dog for another weekend.

[itsallyellow]

My 4.7 with race manifolds etc etc was only 403.9 atw. Would be supprised if a STD 4.5 with a new chip could achieve 380. Good stuff if it does though!!

[Cyclone1]

gruffalo said:

Yep, they said the last car they used the very same map on was 380 at the back wheels and that was about average, some slightly better and some slightly worse but all around that which is why the sell that as the generic map.

I will get it put on the rolling road some time but can't make it to Chatsworth which is a shame, what with Le Mans Classic plus a couple of other lads weekend it would not be fair on the OH leaving her with kids and dog for another weekend.

I think you may have mis quoted them. There is no way a generic chip will give you 380bhp at the wheels.

If it's just a fueling chip to accomodate short Whirlwind type induction then you may see around 380bhp at the flywheel. A bespoke map normally gives around 390bhp along with short induction, but will also be better mapped throughout the rest of the range.

Jules.

[Gazzab]

I thought most mapped cars are 400 plus these days? Joolz for example wasn't exactly suprised to see my non mapped red rose achieve 411.

[gruffalo]

More dumb questions I am afraid.

Have the ECU out now and noticed a 2 pin plug with wires coming out of the ECU plug but it was just floating, should it be connected to any thing?

Chip will be fitted this morning with a bit of luck, if I can find any allen keys at work, if not this afternoon after a trip to Halfords

[Gazzab]

Those wires are for connecting TVRs diagnostics too I think.