Highest Cc In A Xu9 Block

[wardy18 33 1 Cars]

Aaaah...the penny drops. I don't think you ever mentioned any rules stipulating what you can & can't use, and frankly I CBA to read through again.

 

Well £2,200 was QEP's price for building my engine: head work, source, supply and modify pistons and rods, balance crank, lighten & balance flywheel, bore (& deck?) block & full assembly to include supplied parts like extended oil pump, sump spacer, baffled sump & also fit new (bought in) water pump & cam belt.

 

If you have money to spare - which you WILL need BTW - surely a T16 engine fits the bill.

 

i think ill give matt a call and see what price he can do me an iron block for at whatever desired cc, say 2.2, ill have a head sorted so jus wanna price up the block

[James_R 3]

As far as I know QEP aren't building engines anymore, only supplying parts.

[wardy18 33 1 Cars]

ah ok then........

 

so apart from Hi Flow Heads and other private builders like sandy, do any other companies still actually build these engines!?

 

with extended oil pump etc etc as listed above it actually sounds quite complicated so would probbaly be best to get someone to build me a bottom end!!

 

So have we ruled out completely the possibility of a 92mm crank in a XU9 Alu block then?!

[B1ack_Mi16 67]

ah ok then........

 

so apart from Hi Flow Heads and other private builders like sandy, do any other companies still actually build these engines!?

 

with extended oil pump etc etc as listed above it actually sounds quite complicated so would probbaly be best to get someone to build me a bottom end!!

 

So have we ruled out completely the possibility of a 92mm crank in a XU9 Alu block then?!

 

Can't see it should be ruled out, but it'll not give as much capacity potential due to problems/costs with overboring the alloy block.

[wardy18 33 1 Cars]

yeh i mean i would to be able to fit the 92mm crank over the winter into the xu9 block and go from there

 

what pistons would i look out for to go with this crank to allow it to work do you think?!

[wardy18 33 1 Cars]

would these not work, they are the 2.1 TD pistons and seem to have a large amount of material on the top that can be shaved off!?

 

or would it be down to customs rods.............

 

i know it was explained earlier about the journals etc but i really didnt understand all that, was it saying that the standard XU9 rods wouldnt fit onto this 2.1TD crank!? if not which rods would i need, how about Mi16 Rods and pistons?!

[James_R 3]

I hear longman do engine's

[Batfink 201]

may I ask why you are not just calling up a few enginebuilders and asking them to spec an engine once you give them the rules you need to adere by. They will be able to say pro's and con's when comparing different parts.

They each may do things slightly differently and will be able to advise on the parts they would need and the total cost etc.

Its what i have done with my racecar but regarding the chassis. I said the few bits I wanted, gave the rules to the engineer and he came back with suggestions but also did a lot of work off his own back i'd have never thought about. I knew roughly what I was getting but left the detail with the experts.

 

Personally i'd be calling QEP to see what their status is and if they still build engines - theres lots of rumours floating,

Call Miles from Pugracing

Call Sandy Brown

 

You potentially have three engine builds straight away without having to contemplate whether mi16 pistons will fit 406 TD rods etc

 

I've got all three numbers should you need them.

[carbers205 1]

Wardy mate, you seem to be going round and round in circles here!

I think someone needs to gather together all your various posts about this engine from the last 6 months and work from there!

In order to get the definitive answer to all your questions lets get all the criteria down here:

Needs to be block from production 205

Does it have to come under a certain capacity band for competition?

16v?

Budget?

It is clear there are many possible routes which is causing this indecision, but at least it will allow flexibility in the solution.

 

Andy

[James_R 3]

Shilibar aswell, built many comp engines

 

Big question if you won't your class this year, why do you need a bigger engine (reads throw more money at it)

[Batfink 201]

depends how easy that win was lol

[wardy18 33 1 Cars]

thanx for the replies all

 

the championships this year worked to my advantage because every other car in the class is alot more powerful and capable of times at least 2 seconds quicker than me but they are scared of the cars and so havent had very good times and are still gettin confidence with the cars. however this will soon come and one of them easily proved that as soon as he grew a temporary pair of ******* and gave his 400bhp Race Prep'd BMW E36 a bit of stick he can easily beat my times, which is very annoying because i have got used to the 205 very quick and am really pushin it now, yeh ive probably got about a second i can gain yet with more experience in the handling and knowing how its going to react under braking etc but then im still a second down!!

 

sorry for the blurb but just so you understand my situation

 

again i could drop down to the Up To 1800 class but there again is a Mk2 1800 Escort which is doing times 2 seconds quicker than i am at the moment in my 1900 205, so if i were to drop the engine to 1800 i would have even less chance of beating him

 

my situation at the moment is:

 

Buying a 1800 306 XS 16v engine

Giving the head to Mark Shillaber to do his magic on

Getting the conversion fitted

 

But gettin the 16v conversion done will pretty much dry up the majority of my funds as i then need Cams, Manifolds, Dizzy conv etc etc (sorry i have no idea)

 

This is why i was tryin to maybe work with what i have as i can get a 92mm crank for about £120 at the moment and i have a spare XU9 block built that i can play with, so i could either swap the internals from the XS engine into the XU9 alu block and drop down a class or get this crank and see if i can increase the cc in the XU9 block and stay in the 1801cc and over class, either choice i would be running with the XS 16v head

 

This is why my budget isnt really there for the bottom end as its gone on the head work conversion and im just trying to see my best option with what i have available to me for the cheapest price

 

Hope this clears a few things up and helps you understand my situation a little better

 

thanx for all the input

[projectpug 0]

Wardy a homologation car is a car that the manufacturers want to race / compete in FIA make them produce a certain amount of them before they can be entered into rallies. It was to stop big budget team just making a very special (expensive) 1 off. Example are 205 t16/metro 6r4/rs200 etc etc not just limited to the group b cars.

[brumster 135 1 Cars]

Can I re-use this thread to ask a question along similar lines....?

 

I'm wondering the same thing, but increasing capacity by way of bore rather than stroking.

 

Given that custom liners would be needed, and keeping the standard crank throw, I figure 85mm is roughly what's needed to make a 2.0 litre alloy mi16. Are 85mm liners readily available or are we talking custom jobbie? Is there any piston out of another model to suit? Or maybe 85.5, for example, if 85 isn't readily available.

 

Or, another approach, can the 86mm piston from the XU10 be used together with another liner? Custom liner, or another model?

 

Basically, excluding the argument that the cast iron route is so much simpler, if you were pushed to make a ~2.0 litre alloy mi16 how would you go about doing it - and stroke lengthening options are all understood, as this thread has explained.

[tony perks 1]

we have at work , built and raced succesfully, a 1700 xu using 1600 crank and a set of 86mm liners which we made from iron liner blanks, we also used std vaux' Xe pistons, but on the 1600 rod which had to be bushed to the Xe pin size this may be another option for you, but using 1900 crank and rods, or 2.1 crank and gti6 rods, all of which are in stock.

We have seen just short of 200bhp with 1905 so with a 2.2ish engine 220 should be attainable and only 8 v