So ill get my injectors sent to lateral to be made better flow and a bigger fuel pump??? Any recommendations on a fuel pump??

 

rcm340 is a good pump

http://www.rogerclarkmotorsport.co.u...productID=1301

 

On the contrary. That pic of mine you posted of the CDB is a 2.0L that's need bored and sleeved to 2.5 although I know where you're coming from. It can't be done without sleeves.

 

Indeed!

 

 

Thanks

By sleeve.. Is that inside the cylinder bore to strengthen it?? Cast iron?

 

The very one I use along with their 1000cc injectors

 

How much do these blocks like to rev with a suitable turbo? Can you get usable power up to 7500 rpm at least? Thinking of next year's specification, the other alternative is a 2.1 scdb or cdb. I do love an engine that likes to be revved but sluggish spoolup isn't too nice either.

Are we talking of more than £4000 to have one of these 2.5l CDB's built btw (just the block without heads)? I feel a bit like a time waster mailing these questions to the builders before I actually have the money.

 

Not had a good time with my 2.5 forged rebuild. Oil pick up pipe failed at around 9k miles. Replaced and seemed like there were no issues. Rebuilt engine went after 15k miles. Now in the process of being rebuilt again. Anyhow, the block had cracked. When mechanic opened her up he found that the pistons were scored too. I did consider this 2.5 CDB in the re-rebuild - but chap said it wasn't worth it unless I really was going for big power. All I want is a reliable circa 400bhp though.

http://www.ebay.co.uk/itm/271038214152

I think the seller is on this site too.

 

I'm hopefully going for around 450 mark and around 480 on methonal that's why I've gone cdb and cos worth ultra pins

 

£4k is a good figure I got mine built for around that amount £500 is for cdb £2k for internals and about £1k for build

 

2.5 makes a nice road car setup, the extra cc spools quickly and makes great torque. For a more rev happy engine you can't beat a 2.1, you can help with spool by runnig a higher compression ratio, but this is always a compromise with fuel/det if running pump fuel.
This is one ive supplied to a Customer in Sweden-
It's making around 380bhp 481nm

 

I love the torque relative to bhp that the 2.5 gives you.

 

I love the torque of the 2.5 imagine mating this up to a twin scroll turbo set-up now this would be the ultimate street set-up!!!

 

I agree. That's why I did it

 

Nippy???

 

Yes. Nippy enough my me.

 

What would the cost be of doing this over a sc46 or similar bhp turbo?

 

TS turbos arent much more expensive in comparison to their single scroll eqvivalents.
Difference is TS setup,headers,sump,down pipe.Not expencive either.

I would say in total it would cost you around 700 £ more......and you can sell stuff from previous setup to recover some funds.

 

Ha.....it's dangerous this site, I am saving for a project but it just keeps getting more and more expensive. Personally I don't know if I would go for twin scroll, I like a bit of lag and power bands but one to speak to the builder about.

 

TS will give you ultimate usable power band but you will sacrifice unique subaru sound due to equal lenght headers

Do it the right way first time so no doubts or regrets will be left:P

 

Your not wrong there. The problem is, you spend on one build/project, and then you change your mind and spend on another project. Take your time, think what you want at the end, save your pennies, and get the right company to do it for you.(do it once,do it right).