And another stroker...(90Q) Goal: 600 HP

[bsh]

Well the engine did NOT survive the dyno. It barely passed 500whp@5000 rpm before the cylinder wall cracked...
I did use the AAB (2.4D) block and that was not a good idea. I believe alot of you knows it already, but I did not. It happens that the AAB block are alot weaker and are not suited for my expected horsepower... I will either sell the car as it is, or I will build engine a new with a ACV block.
I will maybe be back

[Jamo]

Holy sh*t what happened there?

[bsh]

After what I have been told, this is not uncommon on 2.4 AAB engine block, because it it alot weaker then the TDI block . I should have used the 2.5 TDI block...

[lind4hl]

oh crap,

But, now we know what block Volvo took and copyied for there Aluminum 5cyl..

[quattro84]

Damn, how are the other bores looking?
Do you have more detailed pics of that hole?

[Jamo]

After what I have been told, this is not uncommon on 2.4 AAB engine block, because it it alot weaker then the TDI block . I should have used the 2.5 TDI block...

O.K I feel at ease now with that knowledge

Damn shame though, get a TDI block and get it back running

[Rocco]

i did not know nothing about the 2.4d blocks..if they could fit with our 20vt cylinder heads.

Jamo said me that the choices for build a stroker engine with our heads was the AEL and AAT both 2.5tdi blocks making with the AAT easier the work to do.


i am very sorry friend for this problem

i hope the best of luck early with your new TDI block

[bsh]

@Rocco

Wise words from Jamo I know people are also using the ACV (102 hp) from the Transporter (Eurovan I believe you call it)

I have announced the car for sale, but I am also looking for a good core and will rebuild it if someone doesnt buy the car. I hate to not finish the work I have started, but I do not have to much time to spend on this car...

[Masterblaster]

what is the price youre looking for?

[bsh]

@Masterblaster

I will rebuild it now, so I dont think I will sell it...

Removed the engine yesterday and pulled it apart today. Luckily, piston seems fine and a new block is on its way and will probably be in my hands on Monday. I will then start welding and machining it Monday night. If everything goes well, I will deliever it to the machine shop for boring and decking Tuesday. If I am lucky, I will get the block back on Wednesday

[bsh]

So I got the new block back from the machine shop and have now started rebuilding it again. I have fitted the crank and pistons, but have not torqued it yet, because I have no more ARP lubricant left... I will try to get some tomorrow
I have also bought new, stiffer springs for the valves, so it should be able to rev a little more. They will be installed in the next days.

Thanks

[quattro84]

Which engine block, ACV?

[bsh]

Aat

[Jamo]

Nice, what compression ratio and what length rods are you using with the stroker?

I've noticed my pistons are deeper dished than a lot of other strokers but then I'm running 155mm rods not the typical 159mm

[bsh]

I do not remember the compression ratio 100%, but believe it is about 8,5:1.
The rods are about 155-156mm.