b234f compression

[kapka42]

Im looking at picking up another redblock to build on the side and am not sure whether i want to go 8v or 16v.

My question is, when building a 16v +t redblock, is there anyway to lower the compression so that its more suitable for turbocharging, without using aftermarket components? or will it be fine with the stock 16v bottom end?

[Lando]

Originally Posted by kapka42

Im looking at picking up another redblock to build on the side and am not sure whether i want to go 8v or 16v.

My question is, when building a 16v +t redblock, is there anyway to lower the compression so that its more suitable for turbocharging, without using aftermarket components? or will it be fine with the stock 16v bottom end?

Machine work.

[adrianpike]

Originally Posted by Lando

Machine work.

That's one way, but not the only way.



You can drop a little bit with a thicker headgasket.
You can also drop a bit by enlarging the compression chambers on the head.

Or, you can just run it with stock compression. I ran 10psi on mine without issues, and plan to go higher now that my fuel system is bigger.

[740volvo]

The B234F engine should be fine under boost, what's the amount of boost you plan to run to worry about it giving out??

[Mylesofsmyles]

Picking one up at the yards?

Why not put that head on a B230FT squirter and roll out of the yard like that?

Low compression turbo short block and your 16v head!

[Sensh]

Someone also probably makes (or will be willing to make) low compression pistons.

[Ryan_R]

Bore and stroke of the B234 is the same as the B234.... so you could use turbo pistons.

One advantage of the B234 block is the higher output oil pump.... no squirters, though.

-Ryan

[megulon-7]

Originally Posted by Ryan_R

Bore and stroke of the B234 is the same as the B234.... so you could use turbo pistons.

One advantage of the B234 block is the higher output oil pump.... no squirters, though.

-Ryan

There is a simple solution for that which takes maybe 35 minutes to do developed by the guy who has brought the most innovative parts and ideas to Turbobricks.
And its free to barrow..
See sticky at top of performance.

There is no need to search for and pay money for a squirter block.

[kapka42]

Originally Posted by 740volvo

The B234F engine should be fine under boost, what's the amount of boost you plan to run to worry about it giving out??

idk know yet. i wanna build the engine in my garage first along with a worldclass t5/getrag 265, so im aiming for around 300hpish. how far would i be able to push this block without really running the risk of premature detonation?

Originally Posted by Mylesofsmyles

Picking one up at the yards?
Why not put that head on a B230FT squirter and roll out of the yard like that?
Low compression turbo short block and your 16v head!

i was under the impression that you needed to have the pistons cut/waved guided to run a 230ft block with the 16v head. I take it this would give me more potential over running a b234f block?

[Ryan_R]

Originally Posted by megulon-7

There is a simple solution for that which takes maybe 35 minutes to do developed by the guy who has brought the most innovative parts and ideas to Turbobricks.
And its free to barrow..

I love that tool!.... agreed, crazy innovative. I did not know that the B234 has the plumbing in the right places to use it!

i was under the impression that you needed to have the pistons cut/waved guided to run a 230ft block with the 16v head. I take it this would give me more potential over running a b234f block?

You could do the YoshiFab loaner tool to do the cutting of B230FT pistons.

-Ryan

[500dollar744ti]

Originally Posted by kapka42

how far would i be able to push this block without really running the risk of premature detonation?

detonation is your arch enemy but there is no power number that is safe to say won't create the detonation. you have to tune it properly and you can make vast amounts of power. at the same time you could be making 200hp and detonating all over the place.

it's all in how you tune your setup

[Mueller]

Originally Posted by Ryan_R

Bore and stroke of the B234 is the same as the B234.... so you could use turbo pistons.

One advantage of the B234 block is the higher output oil pump.... no squirters, though.

-Ryan

No mention of what car this is going into...for a 240, that block will not bolt in (all custom parts)...I think for a 740, you need to use the correct parts from a 16v 740

As to the post about putting the 16v head on the B230FT while AT the wreckers, you'd still want to notch the pistons or measure for clearance. The idea was to get the lower compression turbo pistons on the cheap. No price difference between n/a block and turbo block from the diy wreckers.