Frankie's 740 project

[merc85]

They should cope better when you starting uping the power

[smithy]

courtesy of jamie

I had them on my 940 kv85 leads and very good kit

[V70 Graham]

Cars looking good mate.

[T5frankie]

hopefully will be able to get this in for its MOT retest tomorrow, i have worked my way through all 9 fails lol, fingers crossed

[T5frankie]

not too bad in less than 3 months, i want some clear lights next me thinks

[smithy]

Nice job and good luck with retest

[T5frankie]

just want it sorted so i can crack on with the 850r in case jim beats my time lol

[ROZER]

not too bad in less than 3 months, i want some clear lights next me thinks

love that in black omg what a beast are you getting it sprayed black .

[T5frankie]

love that in black omg what a beast are you getting it sprayed black .

i was thinking of wrapping it

[ROZER]

stands out big time in black this car I would get it sprayed black all day.

[ROZER]

Only concern yourself with the 2litre and 2.4litre turbo models. They are both based on the he B23 block which was first brought in in the 70s. While the engine stayed largely the same there are some key differences which are crucial to know about if your looking at power outputs higher than 250brake.

The most important difference come in the bottom end, namely the rods.

In 1982 the B239ET was introduced and this is a tough engine and can hold 500bhp without blowing apart. However in 1985 it was replaced by the B230FT which can in 3 evolutions. The first version from 1985-1988 was designed as a low friction motor and therefore came with 9mm con rods instead of the 13mm con rods as found on the earlier B239ET and it also used smaller main bearings. These 9mm rod motors struggle with 250bhp, let alone 500.

The second version was lightly stronger but still suffered from con rod problems. In 1989 the third evolution was released and this reverts to using the 13mm con rods. The 3rd version has no distinguishing features from the 2nd version but there is a date stamp on the block and cylinder head. If the motor your looking at is made after 1993 it will also have a piston cooling oil spray bar.

Of these engines a 2litre and 2.3litre version available, they are both as tuneable as each other. The 3rd version of the B230FT had very strong cranks but the rods will be at their limit at 350bhp. Luckily forged rods are available form the states for the 198GBP and they can hold 700bhp. The forged rods can be available in standard length or in an 8m longer version. This is so you can choose between standard pistons and forged versions. There are no reports of these Volvo engine cranks snapping so there is no need to go down the forged route here. If you want to increase the capacity of the 2.3litre versions the crank from the Volvo Penta marine engine can be used with standard length rods. This will give a 2.5litre capacity but you will need to change the pistons and there is a 3mm difference in compression height. Pistons are available from StenParnerMotor.se.

[ROZER]

The B239ET with 13mm rods 500bhp standard that's the engine to tune right there.

[T5frankie]

i have the 9mm rods in my b230et motor, i aint looking for out and out power at the moment, maybe 240bhp, its pretty light, if the engine ever gets changed a T5 engine would go in

[smithy]

I don't know nothing lol

[Jamest5r]

just want it sorted so i can crack on with the 850r in case jim beats my time lol

I'd bloody better need the tenner

[T5frankie]

I'd bloody better need the tenner

Shouldn't you be working? LOL

[Jamest5r]

Shouldn't you be working? LOL

I have been since 4am you know how it is lol

[Jim S70R]

Looking good Frankie, you should split the headlights and paint the inside surrounds black.

[T5frankie]

Looking good Frankie, you should split the headlights and paint the inside surrounds black.

mmm good idea

[T5frankie]