Hi guys, Heard about the RS500 engine is a bit different compared to the other Cosworths. Whats the other differences apart from the extra 4 injectors?

Thinking of building one!

 

also is the bell housing different to a normal t5?

 

Block is different, Turbo, Someone said Head too but im not sure on that

 

Yup and Heads different.. and the sump..

 

Block is different and it uses a T4 turbo and an 8 injector setup. Intercooler is the size of a small house as well. After that though I don't know

 

some1 said to me it can get an instant 500bhp by a modification or something?

 

I wouldn`t say instant.. but you have all the fundamentals already there for it.

 

everything is different, block, head, water galleries, oil galleries, i don't want to give to much information..........

 

what about bell housing?

 

I read the early YB engines based on the Pinto block and they selected out the best casting to use. I think the RS500 was the first YB which had the cosworths own block.

Kirk

 

To get 400+ bhp you need to get the extra 4injectors wired up cos their not from memory and the ECU played about with?!

But as said the block was vert different including smaller core plugs which makes them easy to identify!!! The throttle body was bigger etc. Dont think the head was too different but could be wrong on that!!!

But pretty much easy to get big power out of them hence ppl used to go the 8injector route a while back!

 

different block all together..................

 

bloody expensive to buy the 8 inj setup though,hope you got some moolah!

 

Head is the same as the 2wd..block is much thicker with an 800bhp flex rating,bigger throttle body,8 inj plenum,intercooler,ecu is a std LEVEL 1 that needs to be converted to run 8 by collins or pectel,T4 turbo...not much else is there!!

 

 

You can get 500bhp by modding the ECU and fitting 8 greens and some head porting and changing cams and map sensor YES

 

Heads are not the same... minor differences to the inlet side

 

WRONG......head is different........

 

In what way different? Please don't say the 2 dowels for locating the inlet manifold

 

sssssshhhhhhh. boost junky??

 

Exactly Spadge..... RS500 owners need to feel they are special though so ok...give you that

 

 

Don't they just
Fact is an RS500 engine is a mile away from being a 500 hp motor and the engine would need modifying in virtualy every dept to make 500 hp reasonably reliably!

 

RS500's are special, & if I tell you everything, you would know why they are special.
Don't they just
Fact is an RS500 engine is a mile away from being a 500 hp motor and the engine would need modifying in virtualy every dept to make 500 hp
WRONG.............................................

 

The head of a RS500 is exactly the same casting as any late 2wd head with a 3 bolt thermostat mount on the front (I have one in my shed for spares). The only difference is two holes in the mating face where the plenum attaches for two small dowels to sit, and the fact that the inlet tracts were machined out very slightly at the entry point.

The pistons, rods, crank etc are all standard 2wd items only the oil pump is different which was the prototype version of the 4x4 pump. Same goes with the thermostat housing this was an early development of the 4x4 one

The only special part of an RS500 engine is the block and all its bolt ons - technically the 4x4 internals are superior to the RS500 as they have a better piston design reducing piston slap and oil spray arrangement.

All fact not hearsay

 

RS500 head was ported on the inlet side. The block was a stiffened casting, with as mentioned smaller core plugs. T4 turbo, enlarged intercooler, eight injectors.

 

Yes the pistons are not off set any more???
What about the new 202 block????

 

I was lead to believe the block is special, with an uprated oil pump and spray bar and bigger water pump with different thermostat housing, , the pistons are also different to suit block and the head casting was just the 3 bolt one which was used on 2wd saff, with different exhaust valves, and then just the plenum and turbo, but maybe wrong as been a long time since I looked into it.

 

Lol so what makes you more knowledgable than i?
Have you had a 500hp engine???

 

chester The head of a RS500 is exactly the same casting as any late 2wd head with a 3 bolt thermostat mount on the front (I have one in my shed for spares). i will swap a2wd head with you put your money where your mo..h

 

So 'karting' in your expert opinion tell me exactly what you would need to do to make a stock rs500 make 500hp reliably please!

 

Karting,

having dismantled every single type of cosworth engine my information is first hand fact, not read from books and the internet.

How many engines have you stripped to provide your information.

You can buy this head from me if you like, it is complete but one cylinder is completely mashed where no 3 piston let go - make me an offer and put your money where your mouth is.

I shall take some photos if you like

 

i going past milton keynes I am going past Milton Keynes, would you like to swap heads??
So 'karting' in your expert opinion tell me exactly what you would need to do to make a stock rs500 make 500hp reliably please! I think Stuart would be the best person to answer this question.

 

what head no is the head????????????

 

So you don't fookin know lol
I am in Milton Keynes not chester and i have no wish to give you head thanks!

 

Where can I buy 500 engine parts from?

 

ebay?here?cosworth themselves?LONG list!

 

What parts do you want?
There is no need to buy a 500 block as the 200/4x4 one is better
There is no need to buy a 500 head as a 4x4 one is better

Which parts do you think you need

 

im thinkin of bidding on this 200 block what you think?
http://cgi.ebay.co.uk/ws/eBayISAPI.d...e=STRK:MEWA:IT

 

oh and click 'quote' when u reply Karting it makes ur posts easier to read

Fact is u cant just get 500bhp from an out the box 500 engine!!!!!!!!!! which i think is spadges point