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

[Group4_Mark2]

Re: DW's (new?) Sierra N/A PINTO race car

That would be a good thread to follow. If it is as good as Linford it will not be Ok. Might convert me away from the Pinto too.


Tom

Meant to say it WILL be Ok

[Joe-Tait]

Re: DW's (new?) Sierra N/A PINTO race car

A like where this is going Dave

Can i ask why you wont be using a dry sump on the yb build?

[Graham]

Re: DW's (new?) Sierra N/A PINTO race car

you can dry sump a turbo yb but its more complicated, for a start the std piston cooling oil spray bars wont go in a dry sump so you either have to run without or fit them directly into the block itself , with greater power comes more ring blowby so to cope with that and the oil drain from the turbo you really want an extra scavenge stage which apart from adding to cost and complexity fouls the engine mount, finally with the lower revs and not quite so agile cornering you will get provided you have a well baffled sump it doesnt seem to be needed,

if dave were going for a high reving atmo yb i'd say he should stick with the dry sump

[david_white]

Re: DW's (new?) Sierra N/A PINTO race car

I'm also not going to 'nick' bits off of the pinto for the cossie. When it comes to selling it the only things the next owner should need are an ecu and some injectors.

In fact the only bits I will use are the sierra engine mount brackets and the alternator.

[Joe-Tait]

Re: DW's (new?) Sierra N/A PINTO race car

I see now, thanks for the info guys

[therealpinto]

Re: DW's (new?) Sierra N/A PINTO race car

IMHO I really think you should think carefully about turbo choice. I know T3's and T34's are widely used in the UK but to be honest, they are a bit old...

If it's 350 bhp you're after a Mitsubishi TD04HL-19T will support that with ultra quick spool. Worth investigating at least, perhaps...

Gustaf

[markb]

Re: DW's (new?) Sierra N/A PINTO race car

INteresting choice Dave. Shame it won't be out this year though
I think if you want a proper 350 then you're wasting your time even thinking about a T3.
i'd go t34 .48 housing with a massive midrange boost spike. should be very very fast out the corners but will run out of puff a bit higher up the rev range cos yo uave to wind the boost down.
or maybe a .63 housing and not run the spike but have solid power all the way to the redline.

can't remember the turbo clint mentioned when I havd mine. think it was a gt28rs (maybe?)
depends on how much you want to spend on the turbo i guess.. and assuming it's not a fortune for a new roller core one then one of the t34s will definitely be about as cheap as you'll get imo.

[Graham]

Re: DW's (new?) Sierra N/A PINTO race car

i think for the moment dave will do the sensable thing and wait and see what turns up as a donor engine.

he's also got to keep an eye on the rulebook..........

[Pushrod King]

Re: DW's (new?) Sierra N/A PINTO race car

IMHO I really think you should think carefully about turbo choice. I know T3's and T34's are widely used in the UK but to be honest, they are a bit old...

If it's 350 bhp you're after a Mitsubishi TD04HL-19T will support that with ultra quick spool. Worth investigating at least, perhaps...

Gustaf

Strangely enough that's exactly what I was thinking, They use them on Saabs with great results.

[david_white]

Re: DW's (new?) Sierra N/A PINTO race car

As Graham says I'll wait for now and see what I get with the donor engine.

For now I've been fitting my recent purchase of an RS500 intercooler. 5 minutes to fit I hear you say, err no.. not when it has been modified in various ways for use on a couple of different setups in a bmw racecar.
Yes I have Mr Bahrs old intercooler that he used on his 500bhp M3 16v turbo engine. Trouble is that when he had it on the car initially with an 8v engine (I think) it had had its inlet pipe moved to the side and blanked off at the top. With his final setup its inlet moved back to the normal position but the side inlet was left but blanked off and this lined up perfectly with my o/s chassis rail
I have got over this by moving the intercooler over about 5mm towards the n/s and then made an extention piece to go on the origional bracket to allow me to use the normal fixing hole in the chassis. A bit of faffing about but well worth it as I now have an AH fabrications intercooler (expensive!) for lots less than I'd have paid for a crappy ebay special.







I've also bolted in the breather tank and fitted my T5 gearstick that Gary made for the escort

[Luke]

Re: DW's (new?) Sierra N/A PINTO race car

Im Interested to see how you spec your engine as it sounds like your after similiar goals to myself.

[markb]

Re: DW's (new?) Sierra N/A PINTO race car

i think for the moment dave will do the sensable thing and wait and see what turns up as a donor engine.

he's also got to keep an eye on the rulebook..........

Sounds sensible.
Do the rules limit the type fo turbo you can run to ones originally fitted if you don't want to end up in class A?

[david_white]

Re: DW's (new?) Sierra N/A PINTO race car

I think with the cossie engine and T5 box I'd only end up in A if I fitted 8 injectors, which I'm not.

[markb]

Re: DW's (new?) Sierra N/A PINTO race car

cool. no need to fit 8 anyway imo... not with the more modern siemens ones etc available these days.
fortunately things have come on considerably since greys were invented!

[Graham]

Re: DW's (new?) Sierra N/A PINTO race car

up until last year 8 injectors would of put you in class A, but as you say these days it you can get such big injectors that only having 4 doesnt hold power back.

theres no limit in the turbo as such, BUT there is a possibility of turbo restrictors being introduced,

in particular the possiblity of using 34mm ( as per rally cars) which would allow dave to run in a class BELOW the BIG horsepower sierras