Superchips for 2.8 V6

[crossle]

Do any early S owners out there have experience of Superchips "+10 bhp" chip for your 2.8 engine?

[bridgdav]

Austec have fitted Chips to S3 2.9V6

www.dastek.co.uk

Both myself and Podie..

Check the threads..:

On the rollers...
Back On the rollers...
On the rollers 2...


To add....

I can't believe I beat PODIE to an Austec plug...

>> Edited by bridgdav on Thursday 18th March 14:40

[M@H]

I'm currently talking to Interpro about an Engine Management System for mine although it may not work...

..do you mean one of those standard bung it in and hope for the best "upgrade" chips..?

Cheers
Matt

Edited to add.. but of course as Bridgdav knows, the 2.8 has a totally different ECU setup to the 2.9


>> Edited by M@H on Thursday 18th March 15:59

[davidy]

The fundamental problem with extracting more power from the 2.8 is the siamese exhaust manifold arrangement on the cylinder head. More power cannot be extracted easily as the exhaust gasses just can't get away fast enough.

The US version of the Cologne engine (fitted to 1980s Mustangs) was available with proper 6 port heads, 3 in/3 out and if you want to tune a 2.8 then these should be considered. The 2.9 engine doesn't suffer from this as it has a proper head design! and more power can be extracted.

I know that M@H is considering turbocharging (from recent posts), but this will present a completely new set of problems, namely exhaust manifolding, the turbo will probably have to be sited in front of the engine (a la M series turbo) so the exhaust will have to sweep forward and then back (bit like a Rover engined Tuscan racer) and under bonnet cooling, whilst it may be marginal when on the move, I suspect that things will get very hot meeting a queue of traffic on a hot day after a blast. I would suspect that venting the rear of the bonnet at the base of the screen may help here (hot air rises, etc and you don't want to force the air down as this will promote lift!)

Going back to the +10bhp, didn't TVR claim a slightly higher figure than Ford anyway due to a free flowing exhaust?!? I would have thought this is a waste of hard earnt money, better to spend the money on driver tution, worth more than 10bhp is most instances!!

davidy

[M@H]

davidy said:

I know that M@H is considering turbocharging (from recent posts), but this will present a completely new set of problems, namely exhaust manifolding, the turbo will probably have to be sited in front of the engine (a la M series turbo) so the exhaust will have to sweep forward and then back (bit like a Rover engined Tuscan racer) and under bonnet cooling, whilst it may be marginal when on the move, I suspect that things will get very hot meeting a queue of traffic on a hot day after a blast.

Quite right there... and you'll have noticed I tracked down an M series Turbo the other day for a butchers too.

I'm going to have to manufacture a complete set of manifolds and an upper exhaust section from scratch. And yes, the Turbos* will indeed have to sit in front of the engine. The battery will go to the boot, and the intercooler (maybe) will hopefully squeeze in there somehwere too. I already have a BIG kenlowe fan in there which will help with general cooling and air circualtion a bit, and I'm going to duct the cold air intakes from the front of the car onto the intercooler and turbo's to try and help out there too.. Its going to be a big job I realise, still.. its a hobby

>> Edited by M@H on Thursday 18th March 14:59

[M@H]

Will you 2.9 boys butt out !! ..the 2.8 has a Bosch K Jet mechanincal injection system, not the same as the 2.9 L Jetronic.. accordingly the Dastec Chip may well not be appropriate.

Cheers
Matt


EDITED TO ADD - Dave, there was no need to remove your post completely I was only messing about

Now mine looks like i'm moaning at no-one..



Hello.. Hello..


>> Edited by M@H on Thursday 18th March 15:18

[davidy]

M@H

Sorry to change the tact of this thread from the Superchips theme, but back to your more interesting Turbo project.

I went through all these thoughts when I 'upgraded' my Taimar, in the end I ended up with a trick normally aspirated engine, but the big differences to the underbonnet temperatures were made by :-

1) A bigger (fatter) radiator, more water in the cooling system (two expansion tanks in series for those warm moments)

2) Two kenlowe fans (behind the radiator sucking is better than blowing!!) and an override switch in the cockpit, hit the Thirty limit flick the switch, you are already prepared!

3) A vent towards the rear of the bonnet as the M series SE cars. I can't remember on an S whether you have a gap anyway on the trailing edge of the bonnet when it is shut, if not consider one of these vents, it is fairly unobtrusive and you can buy them from Adrian @ Exactly TVR or David Gerald as a complete mould. Don't think it does much while you're going along but when stationary it is somewhere for all that hot air to escape.

Alos don't forget the weak first gear on your gearbox!!

davidy

PS of course you could buy an Impreza Turbo Vent and and mount the intercooler horizonatlly!

[joospeed]

The 2.8 has no ecu .. so there's no chip!! hence no chipping .. if they're asking for a couple of hndred pounds for nothing i think they may be taking the piss!

All you can do is drill the metering flap, reduce the control pressure and hope you get it somewhere near. Unless you're running a modified motor though you'll find the fuelling is quite ok with the later XR4i warm up regulator. Earlier capri warm up regs make the mixture a bit weak at the top end.

[M@H]

Hmm.. all good solutions.. fortunately the S bonnet has a good 3"-4" gap between the scuttle and the bonnet itself so plenty of room for air to escape. I already have the "panic" switch for the current fan setup installed, and I like your idea of having a second one.

I was wondering about thermotec wrapping the mainfolds etc, however am guessing that the heat that won't be dissapated will just cook the turbo's instead. , other than that I was considering some extra air ducting by putting a splitter on the transverse chassis rail between the wheels to duct more air up into the engione bay from underneath... depending on where the intercooler ends up, this might be a good way of getting some air across that too.

How come you went NA in the end then..??

Cheers
Matt.

[M@H]

joospeed said:

All you can do is drill the metering flap, reduce the control pressure and hope you get it somewhere near.

or fit an OMEX 700



>> Edited by M@H on Thursday 18th March 15:36

[davidy]

Reasons for NA

I wanted a balanced car, so a lot was spent on suspension, brakes wheels/tyres so I had to restrict the engine budget, that said I still spent £900 on a custom exhaust system!!!! I ended up with 190-200bhp (from an Essex V6) which did 27000 hard miles (over 4000 of them on track!) before the rocker gear started destroying itself! Look at my profile for the costs! www.pistonheads.com/members/showcar.asp?carId=105

The Turbo route, engine transplants and triple webers all were considered, (I even had the Webers and inlet manifold on my garage floor) but were discounted on either cost or hassle.

Glad I did it all, great fun modding a car, got it out my system now, these days I would just buy something with more bhp in the first place.

Best of luck with the turbo project

davidy

[joospeed]

M@H said:

[quote=joospeed] All you can do is drill the metering flap, reduce the control pressure and hope you get it somewhere near.

or fit an OMEX 700
[quote]

Don't understand that .. how do you control a mechanical system with an electronic controller?

[M@H]

AAaahh.

I'm not going for anything wild though.. I plan to use to little turbos (somthing like the IHI off the Uno turbo) so that they will have spooled up by about 2000rpm and the Lag should be reduced, and only run with about 5-7psi of boost. This should give it lots more torgue even at low revs and about an extra 50(I'm guessing?) Bhp. We shall see

Cheers
Matt.

[M@H]

joospeed said:

M@H said: joospeed said: All you can do is drill the metering flap, reduce the control pressure and hope you get it somewhere near. or fit an OMEX 700 Don't understand that .. how do you control a mechanical system with an electronic controller?

replace the whole lot with a whole heap of electrolic sensers that you can get to go with it ..about £2000-£2500 all in including the Rolling Road setup

Much easier and cheaper to just buy a 2.9 EFI engine and a Dastec chip I would Imagine

Cheers
Matt.

>> Edited by M@H on Thursday 18th March 15:58

[joospeed]

Ah. LOL .. so nothing to do with 2.8 V6s on k jetronic then

[M@H]

Nope

[Podie]

bridgdav said:

I can't believe I beat PODIE to an Austec plug...

Work is getting in the way at the moment.

[lordb]

........just buy a V8 ? (I'll get the next round)