Escort Sigma 1600 Race Car

[Roadsport]

Re: It's a loud boy !!

This would alter the engine timing. Loosening the belt means I need to time the engine again or loose some power. With a high compression engine even the slightest change in timing could mean a loss of significant ammount of power.
I believe I'll leave the belt "too loose to race cold". Meaning I'll have to warm up the engine before race start and avoid cold idle.
BDA uses a fixed tensioner.

[Graham]

Re: It's a loud boy !!

iirc on BDA's the belt on a BDA always whinned like hell.

when we used to put belts on cvh's we always fitted them and ran them very briefly before retensioning the belt because belt tension would drop off considerably as soon as they were started, infact it was only after we started doing that we realised thats exactly what the ford dealer next door did

[Roadsport]

Re: It's a loud boy !!

Rain them? I don know what that means Graham?
And it may very well be that this whinig noise is "normal" to this engine or engine with my spec / set up. I even consider it very possible I'm all nervous for nothing.

[Graham]

Re: Race Escort Zetec SE (engine build)

Rain them? I don know what that means Graham?

sorry a typo on my behave, i ment ran the engine

[Roadsport]

Re: Race Escort Zetec SE (engine build)

OK. I see.
Did the belt give a little before settling in?

[Graham]

Re: Race Escort Zetec SE (engine build)

yes quite a bit

[bm5400]

Re: Race Escort Zetec SE (engine build)

hello can i see some pics of your sump mate

Photos attached, hope this assists

[Roadsport]

Re: It's a loud boy !!

iirc on BDA's the belt on a BDA always whinned like hell.

I got some confirmation for the BDA's whinig too. So may well be as said earlier, the high spec all alloy engines with fixed tensioners may be prone to whine.

I received the new belt and tensioner today. The belt feels no different to the hand than the Ford or Gates item. The only difference is the OE belt has a tiny groove in the tips of its teeth as the Piper and Gates items have plain round teeth.
But the tensioner certainly feels more robust and solid than the OE YB tensioner that I used. No slack or movement in the bearing like the Audi and YB pulleys. And does not spin freely like the YB tensioner did.
These are going in tomorrow and after that it is what it is.

[Roadsport]

Re: It's a loud boy !!(but not whiny anymore)

All done.
The whinig, the sound resembling a broken power steering servo, is deminshed to a slight mechanical sound. I guess that is the sound it is supposed to make
Ready for the rollers......again.....I hope now it is time for my luck to turn. I still have plenty of time to make it to the third meeting.

Few quite pointless pics. I'll leave the cam belt cover off for the time beeing. I want to keep an eye on the pulley and the belt for a while.
Still need to make a new strut brace and change that fule hose from rail to regulator to a longer one.







For the evo two I think the engine will be moved 5cm to the left. It's quite crouded on the right side. Not so service friendly.

[team_zi]

Re: It's a loud boy !!

Sorry, random question, but does the SE use the same bell housing pattern as all the other Ford engines (apart from the Duratec of course x-) )

[Roadsport]

Re: It's a loud boy !!

Sorry, random question, but does the SE use the same bell housing pattern as all the other Ford engines (apart from the Duratec of course x-) )

No it does not. It has even different pattern than the Duratec alltough both use iB 5 box. I believe the SE was the first Ford engine with a non traditional Ford pattern.

[dobuy]

Re: It's a loud boy !!

loving that airbox, very neat indeed

[Roadsport]

Re: It's a loud boy !!

loving that airbox, very neat indeed

Thanks. I'm happy with the out come of it too.
It's a complete nightmare to install and remove though.

[Roadsport]

Re: It's a loud boy !!

The engine was mapped today.
Not the best day to choose since it was literally the hottest day in all of Finnish history. So the engine was a bit down on power.
But everything worked fine and the engine sounded brilliant all the way up to 9000rpms. No videos tough, sorry. Forgot my camera home in the morning.

We only did the fuel and ignition maps so I still need another session to try out different cam timings and perhaps different lengts of trumpets. I really hope its colder too so I could get a nice figure out of it. The airbox seemed to work fine. It levelled out the dimps in the torque curve and made only 1 bhp less max power.
But hey, race number three here I come!!!! Even picked up a new set of tires on the way back from the rollers.

[Graham]

Re: It's a loud boy !!

sounds good cant wait to hear more