DW's (new?) Sierra 3dr YB race car

[Pushrod King]

Re: DW's (new?) Sierra 3dr YB race car

At this rate you'll be going full circle and end up still running the pinto in the car.......lol

[david_white]

Re: DW's (new?) Sierra 3dr YB race car

Is there any way you could tilt the inlet manifold up at and angle and use any length trumpet you wanted without the problem of interference from the inner wing. Might also be easier to get cold air in from vents in the bonnet also.

With things as they are now I can easily get the longest (120mm) trumpets in with clearance for a filter.
Angling them straight from the inlet would require a bespoke inlet manifold and mean removing the strut brace and its brackets on the turret although it would make for a better shaped intake. For now I wanna keep it simple as poss.

I do have a direct air feed from the headlamp intake as well as a naca duct in the bonnet

[mervhill]

Re: DW's (new?) Sierra 3dr YB race car

Is there any way you could tilt the inlet manifold up at and angle and use any length trumpet you wanted without the problem of interference from the inner wing. Might also be easier to get cold air in from vents in the bonnet also.

Best way to do that would be to use tapered throttle bodies and manifold.

[mervhill]

Re: DW's (new?) Sierra 3dr YB race car

Thanks mate, I think it should be good. It should also be better on fuel and tyres so like I say the origional set up of the car will still work.

How much is the Tony Law manifold, I have heard good things about them too

I do believe they're around the £4-500 mark mate, not entirely certain. Only problem is that I'm not sure they do one for the Sierra, would you be able to use a MK2 Escort one?

http://www.tonylawexhausts.co.uk/2410/frames.php

[Group4_Mark2]

Re: DW's (new?) Sierra 3dr YB race car

Is there any way you could tilt the inlet manifold up at and angle and use any length trumpet you wanted without the problem of interference from the inner wing. Might also be easier to get cold air in from vents in the bonnet also.

[david_white]

Re: DW's (new?) Sierra 3dr YB race car

The right move in my opinion mate, that'll be LOVELY! Matt's YB was only around the 230bhp mark remember, and look how strong that was! The best manifold he had was a Tony Law one, they are beautifully made and well worth the extra money. Matt said the engine was much smoother with its introduction too. Good luck with it!

Thanks mate, I think it should be good. It should also be better on fuel and tyres so like I say the origional set up of the car will still work.

How much is the Tony Law manifold, I have heard good things about them too

[david_white]

Re: DW's (new?) Sierra 3dr YB race car

I have also fitted an omp strut brace which is good enough to use as a harnesses bar and theres also a pic of my new 'msa legal' tow strap as the hole in the origional one was no longer Unimog friendly apparently

[mervhill]

Re: DW's (new?) Sierra 3dr YB race car

The right move in my opinion mate, that'll be LOVELY! Matt's YB was only around the 230bhp mark remember, and look how strong that was! The best manifold he had was a Tony Law one, they are beautifully made and well worth the extra money. Matt said the engine was much smoother with its introduction too. Good luck with it!

[david_white]

Re: DW's (new?) Sierra 3dr YB race car

Most of the plumbing, wiring and mocking up is complete now, just an exhaust manifold and a catch tank are missing.





Note that battery tray and dry sump tank have been refitted.

[david_white]

Re: DW's (new?) Sierra 3dr YB race car

Time for a decent update. After much deliberation and crunching a lot of numbers I have come to the conclusion that the best way forward with the car is to stay N/A. Having my lovely pinto sitting there has been really making me think and with the prices of cosworth engines pretty high now for something complete but totally unknown the decision was made.

The car will now be running with the dry sumped linford pinto bottom end with new pistons and a reworked N/A YB head.
Graham will be building the head with new cams, solid lifters and a fair bit of porting, which along with 12.5:1 forged pistons and my current throttle bodies should see a healthy power figure. Although this new set up will be around 100bhp short of the turbo set up we were planning I have been able to remove a considerable amount of weight from the car and hopefully won't have affected the brilliant handling of the car which no doubt the heavy turbo bits would have. The car should drive a lot nicer too in respect to throttle response etc. I know that with a tad more power than the pinto could give me I'd have been killing most of the turbo cars on wet tracks and keeping up with a lot of them in the dry too.

Eventually I'd like to see 240-250bhp from the N/A YB but I'll still be happy if our first effort can get over 220 as this will still be an improvement over the old 190ish I had with little or no extra weight.

The engine bay is now a lot lighter, tidier and less complicated, plus heat should be less of an issue. I need to look at exhaust manifolds next and I can go for longer trumpets on the jenveys as the inlet manifold is about a 3rd of the length of my pinto one.

[david_white]

Re: DW's (new?) Sierra 3dr YB race car

So whats happening with the engine? Cant wait to see this going again.

Graham will be starting the build of the YB very soon, in the meantime I need to sell the pinto in order to finance some of the more expensive parts of the new engine, such as rods and pistons. Its hard to part with the pinto but money is tighter these days as I guess it is for most people.

[Group4_Mark2]

Re: DW's (new?) Sierra 3dr YB race car

So whats happening with the engine? Cant wait to see this going again.

[david_white]

Re: DW's (new?) Sierra 3dr YB race car

CORRR! BLIMEY! i knew id been away for a long time but my god
thee ol' girls changed abit since i last see her....looking good now dave

Have done a bit more lately too, just keep forgetting to take pics. Just need an engine and some paint on the drivers door and we're away

[alex savill]

Re: DW's (new?) Sierra 3dr YB race car

CORRR! BLIMEY! i knew id been away for a long time but my god
thee ol' girls changed abit since i last see her....looking good now dave

[markb]

Re: DW's (new?) Sierra 3dr YB race car

Looks decent Dave!