DIY 550bhp 2.5 STI V3 Type R
The main aim is to knife edge the port dividers and then just tidy all the ports up, remove casting marks etc. I'm going to get them as close to the RCM ones pictured earlier.
Joined: Sep 2005
Posts: 19,945
Likes: 2
From: "Engineering Perfection in Essex"
Daz,
With regards to finish, go with 320 cartridge rolls then finish with cross buffs (Scotch brite)
I left the intakes a brushed finish and mirror polished teh exhaust ports. Its the exhaust side that really needs as much cleaning up as possible. Your inlets are not really a restriction. Its all in the exhaust.
See my thread for some snaps of what i did
With regards to finish, go with 320 cartridge rolls then finish with cross buffs (Scotch brite)
I left the intakes a brushed finish and mirror polished teh exhaust ports. Its the exhaust side that really needs as much cleaning up as possible. Your inlets are not really a restriction. Its all in the exhaust.
See my thread for some snaps of what i did
Well I quickly gave up on that idea.
I niether have the know how or the tools.
After a couple of hours with the damaged head I decided that doing this for real on the good heads was a no go for me.
Anyway, I lapped the new valves in and then I gave the replacement heads a really good clean and got everything ready for assembly for tommorow.


I niether have the know how or the tools.
After a couple of hours with the damaged head I decided that doing this for real on the good heads was a no go for me.
Anyway, I lapped the new valves in and then I gave the replacement heads a really good clean and got everything ready for assembly for tommorow.


They are low mileage SH ones. They were pretty clean in the first place. However my previous ones started to show signs of the bare aluminium corroding so I decided to give them a light coat of paint. I've done the same on the block too. Hopefully it'll protect them against the elements.
It was a case of not wanting to f*ck them up Paul 
I don't have the know-how or the kit to do them properly so I didnt want to mess them up. My last heads which were identical to these coped with 600bhp so they arent too shabby in standard form

I don't have the know-how or the kit to do them properly so I didnt want to mess them up. My last heads which were identical to these coped with 600bhp so they arent too shabby in standard form
Things are starting to take shape nicely now 
I've started to get some Sponsors on board.
Zak @ Mocom Racing
Has agreed to provide me with all fluids needed for the car. He'll be supplying Motul Oils for engine, gear box, rear diff and some brake fluid.
He's also going to be supplying a set of TRS Harnesses too.
Chris at CDF Racing is going to supply some of their adjustible cam verniers and are also going to supply me with one of their new Six Pot brake kits when they are launched.
Got a few others in the pipeline too. Watch this space as they say.

I've started to get some Sponsors on board.
Zak @ Mocom Racing
Has agreed to provide me with all fluids needed for the car. He'll be supplying Motul Oils for engine, gear box, rear diff and some brake fluid.
He's also going to be supplying a set of TRS Harnesses too.
Chris at CDF Racing is going to supply some of their adjustible cam verniers and are also going to supply me with one of their new Six Pot brake kits when they are launched.
Got a few others in the pipeline too. Watch this space as they say.
Another couple of days on it.
The heads are built. I'm just waiting for some lifters to turn up.

Short motor is fully assembled, I reused my main bearings but bought new Big Ends as they had seen better days.

I just need to ream out the other head gasket to allow the 14mm head stud fitment and the heads can go on tomorrow.
The heads are built. I'm just waiting for some lifters to turn up.

Short motor is fully assembled, I reused my main bearings but bought new Big Ends as they had seen better days.

I just need to ream out the other head gasket to allow the 14mm head stud fitment and the heads can go on tomorrow.
I have had a fitting welded into my sump today for catch can drain back.
Unfortunately I had to leave it with the guy that did it rather than watch the job being done.
Anyway I think he's positioned it too high in th sump. I wanted it under the lower most baffle but he's done it above it.
Is this going to cause problems? i.e do I need to throw it in the bin and source another sump?

Unfortunately I had to leave it with the guy that did it rather than watch the job being done.
Anyway I think he's positioned it too high in th sump. I wanted it under the lower most baffle but he's done it above it.
Is this going to cause problems? i.e do I need to throw it in the bin and source another sump?

I have had a fitting welded into my sump today for catch can drain back.
Unfortunately I had to leave it with the guy that did it rather than watch the job being done.
Anyway I think he's positioned it too high in th sump. I wanted it under the lower most baffle but he's done it above it.
Is this going to cause problems? i.e do I need to throw it in the bin and source another sump?


Unfortunately I had to leave it with the guy that did it rather than watch the job being done.
Anyway I think he's positioned it too high in th sump. I wanted it under the lower most baffle but he's done it above it.
Is this going to cause problems? i.e do I need to throw it in the bin and source another sump?


But then what do I know.
I'm GLAD to see this taking shape again Daz.
Is Clives on the backburner for the time being?
Hugh good to hear from you 
It's below the dipstick. I can get just under 3 litres in there before it starts to pour out of the fitting. The question is where does the oil sit once the engine is running?
Clive's is on hold yes. trailer and all the parts are back down south for the time being.
I'm not sure when it'll all kick back off again.

It's below the dipstick. I can get just under 3 litres in there before it starts to pour out of the fitting. The question is where does the oil sit once the engine is running?
Clive's is on hold yes. trailer and all the parts are back down south for the time being.
I'm not sure when it'll all kick back off again.
I wouldn't of thought you will have any going up into the catch tank.










