GavinR's Mk2 Stage Car - DVY

[GavinR]

Re: GavinR's Mk2 Stage Car - DVY

Well things haven't gone well over the last fews months - on HT's Rolling Road in May, there was a problem with the timing caused by the old wiring / ECU. We tried a new crank sensor but it did not make any difference, so I left Dvy with them to fit a new ECU and engine wiring loom. This was completed a couple of weeks ago and some mapping was done, but there was a distinct lack of power.

Further investigations showed the engine was down on compression on all cylinders, but not losing any oil or water, so seems to be a valve / cam / timing issue.
I got Dvy back home and took the head off - everything looks fine, but I'll take the bottom end out and take it all back to HT so it can be thoroughly checked, measured and put back together!

[alladdin]

Re: GavinR's Mk2 Stage Car - DVY

you must be very dissapointed having got it all bar finished - gutted for you - i am sure you will forge on, onwards and upwards and look forward to the positive outcome that has been delayed

[Kmp]

Re: GavinR's Mk2 Stage Car - DVY

Have you had any more luck yet Gavin? Or any ideas?

thanks
kris

[mexicotait]

Re: GavinR's Mk2 Stage Car - DVY

At least now you know it will be all fresh and ready to go.

Do you have any events planned?

its a bit of a busy year now events are running again!

[GavinR]

Re: GavinR's Mk2 Stage Car - DVY

I dropped everything off at HT last weekend - Ron will strip and rebuild it as required, then run it on the dyno, so it should be ready to drop in when it comes back, hopefully in August.
Still thinking about whether to try for an event in September.

[GavinR]

Re: GavinR's Mk2 Stage Car - DVY

I did enter the event in September, the Three Shires Closed Road Stages which is based at Malvern Showground, but I'll be in Fly...

Ron has stripped the Duratec, the bores are worn but the pistons are relatively new (so probably lost compression through the rings), there is play between the pistons and the rods, and the head is completely standard, not even had a skim.
It will be rebuilt correctly and the problems sorted, I said not to rush though as I doubt I'll be out in it this year now.

[Kmp]

Re: GavinR's Mk2 Stage Car - DVY

Hi Gavin,

has there been any updates on this engine build? Feel gutted for you that you were ripped off on the engine, hope all is going well.

thanks
kris

[GavinR]

Re: GavinR's Mk2 Stage Car - DVY

Hi Kris,
It's in progress, hoping to get it back in the next few weeks
Even if I had it back, I've been too busy to do much with it, but I'm keen to get everything ready for some events in 2022
Thanks
Gavin

[GavinR]

Re: GavinR's Mk2 Stage Car - DVY

Finally



245 bhp and 175 lb ft of torque on the Dyno so should be good when I've got it back in Dvy

[Kmp]

Re: GavinR's Mk2 Stage Car - DVY

get in! Looks a beast, That’s a dream engine for me!

When’s your first event or shake down?

[GavinR]

Re: GavinR's Mk2 Stage Car - DVY

I hope to be out at one of the events at Down Ampney in April or May, but do a test day before then to make sure everything is ready to go

[beeRS]

Re: GavinR's Mk2 Stage Car - DVY

Great read on your Duratec installation. Shame about the engine first time around. What ECU did HT go with? Or did they just re-map the one that came with the engine?

[Graham]

Re: GavinR's Mk2 Stage Car - DVY

great write up as always

[katana]

Re: GavinR's Mk2 Stage Car - DVY

What ECU did HT go with? Or did they just re-map the one that came with the engine?

Often wondered this myself with stand alone engine testing prior to customer delivery? Especially with this one ie. fitted with 803? Bosch Green injectors ie. low impedance types which won't play nicely with a lot of aftermarket ECU's. Having to wire up separate customer supplied ECU's could cause issues, be time consuming and a tuners generated map may not transfer to a customers ECU . . . . . . . . carbs were so simple LOL!

[GavinR]

Re: GavinR's Mk2 Stage Car - DVY

Great read on your Duratec installation. Shame about the engine first time around. What ECU did HT go with? Or did they just re-map the one that came with the engine?

The engine came with an old MBE 967 and it was good enough to get it running, but not much more than that!

When it was on the rollers at HT the first time, the ECU wasn't getting a good signal from the crank sensor and fitting a new one didn't make any difference, which pointed to either the ECU circuits degrading or the wiring loom. My cosworth was on a Vipec ECU supplied by HT (Vipec are now Link ECU) but they have been using Maxx ECU's for a few years now, so we went with a Maxx ECU Street version. Ron fitted it and made the loom on the car last year so it's all neat and tidy.

Now it has been dyno'ed following the rebuild, the new map has been copied to my ECU so it will be ready to go once I've got the engine back in.