Yet another 3B engine rebuild

[audiman]

I was over at Steve H's today and he was telling me thats what Dialynx do. Also that hillclimb car uses flattened pistons. Im not sure mate..... I have no experience with this. I cant afford to do JE pistons like you, so do I leave the pistons stock or shall I **** around with them??

[Mark Halligan]

I was over at Steve H's today and he was telling me thats what Dialynx do. Also that hillclimb car uses flattened pistons. Im not sure mate..... I have no experience with this. I cant afford to do JE pistons like you, so do I leave the pistons stock or shall I **** around with them??

If thats what Dialynx do, and I know that hillclimb car is very highpower, so it must be OK then .

Mark.

[audiman]

Wahey, thats what is gonna happen then. I love being a guinea pig

[diesel des]

In stead of machining the pistons flat why not shim the head with the parts from a second gasket? Will do the same thing but cheaper, and also reversable if it turns out to hurt squish too much.

[audiman]

Doesnt last very long. Thought about that. Gaskets tend to blow out

[diesel des]

I cant see why it would blow any easier than a normal steel layered rs2 type gasket. They are already made of many layers, so one more will make no diference to reliability. I have used this way to lower CR on VW audi diesls that have much highter Compression preasures and have had NO problems.

[audiman]

If the skimmed pistons are good enough for Dialynx and a 600hp hillclimb car, then im sure it will be fine for mine!

[audiman]

and that one, they are not in order, but can you see the ****ed one?

[audiman]

and the new ones

[Pete_RS2]

Nice bent rod. New ones look ££££. When's it all gonna be back together ? Is Castle Combe gonna be too soon ?

[Doug_RS2]

Sweet Tom - No wonder your car was running like a bag of nails.

Welcome to the Arrow Club - lets see who's the first to bend an Arrow Rod !

[Mark Halligan]

Welcome to the Arrow Club - lets see who's the first to bend an Arrow Rod !

Hope its not me

[audiman]

Did any arrow users get a free sticker? I didnt, and for a grand i would have expected some!!! Im gonna get some made using the logo on the box. Doug/Mark do you want one for the car/engine bay?

Car wont be ready for CC Im too far advanced for rushing it now. Most of theengine is at the machine shop now.

I have opted to machine the pistoms down, this should give a CR of about 8.7/8.8:1. Been speaking to Grant at AET about turbos today, Im goona go for the same one as he was using about 1.5 years ago. K26/27 #8 hotside with a custom coldside for increased durability and good EGT's. The housing alone is 360+vat, but they will use my existing shaft 'section'. Total cost is about 680+VAT. Im told that this will be good for 500+bhp. That should be the last turbo I buy.

I had a real good chat with him today. He listed all the options out and basically said, how much power do you want? When I said that the current blower was at its limits he suggested this one. Only problem being lag is gonna be a bit worse, full boost at about 3800rpm, instead of at 3200rpm. Ah well.

[audiman]

What a sight I hate seeing the car like this. Hopefully should be up and running in 2 weeks time. Hopefully will get all the bits back from the machine shop next week.

[audiman]

So far the mods are as follows.........

Modified head
7A cams
RS2 Exhaust manifold
RS2 injectors
RS2 intercooler
Skimmed pistons (8.8:1 ish)
Arrow rods
Lightened flywheel
Helix clutch
K26/27 #8 with modified coldside housing


This should produce around 400~450 bhp without any problems.

We will see