FTO AUSTRALIA

hey guys had a question? i was told that the 6A13TT engine uses the same con rods as a 6A12.
is that true? i also read it in a forum :0

any info would be good guys

That is not true.
What is true though is that the 6A12TT engine uses the same rods as the 6A12 MIVEC

Yeah the 6A13 rods are marginally bigger in cross section & slightly longer to acheive the larger capacity. Part no MD312614 vs the FTO ones MD147819.

thanks bennoz was alil worried after i was told there the same size. bennoz do you know what sort of power figures the engine is good for before it blows up hehe

kermut wrote:thanks bennoz was alil worried after i was told there the same size. bennoz do you know what sort of power figures the engine is good for before it blows up hehe

Im at ~250kws at the wheels and counting

Mind you, there's a bloke on ozvr4.com thats making 280kws at all 4 with standard internals

Bennoz wrote:

kermut wrote:thanks bennoz was alil worried after i was told there the same size. bennoz do you know what sort of power figures the engine is good for before it blows up hehe

Im at ~250kws at the wheels and counting

Mind you, there's a bloke on ozvr4.com thats making 280kws at all 4 with standard internals

I know what you mean thou, I've seen the rods out of one of these motors & they aint that big...

thanks bennoz you always help out, i actually followed your blog and did my conversion except the electrical had to work that out the hard way my self. what mods have to dont to get 250 at the wheels? i got rid of my twin system and am using a single bbt28 out of a s15 :s...

I kept the twins, just replaced them with new ones & wound the boost up. Didn't need to do much to the motor, just some good plugs, Bosche coil packs, some bigger injectors & a minor fuel rail mod, some stiffer waste gates, some vernier cam gears on the exhaust cams, the Haltech & some nice piping. Most of it was done in the tune. I run the poor little tubs as hard as they can go at around 18 pound, so I have a pretty regular turnover of them, but they're cheap as chips

When I next get enthusiastic, Im gonna upgrade the waste gates again to externals. Ones I got now are only just coping...

Bennoz do you know the rod length for the 12 and 13?
And, what is the cut off rpm for the 6A13TT?

spetz wrote:Bennoz do you know the rod length for the 12 and 13?
And, what is the cut off rpm for the 6A13TT?

Who cares about RPM cutoff when your have 2 turbo's you shift when they stop spooling, which is probably around 6k for ben

Yeah it'll rev all the way out to 7.5k, but Im off boost and cam range around 6250-6500.

And do you know the conrod length for each respective engine?

Not off the top of my head, no. I could get a couple of sets if you wanted thou.

It always the way, I just binned an old 6A12 motor from my garage because I needed the space. Had all 6 rods in it lol.

As for 6A13, I'll ask the guys on ozvr4. Some of them who've gone with forgies will have a set lying about.

I could get some numbers from my old set if you want?
Just let me know from Where you need the start and finish points to be.

I think they are generally measure from center to center?
I was just hoping to get the rod length to then calculate the rod/stroke ratio for each motor

Thats not gonna get you a definitive answer. The Cranks are different. Best way to find that out it to get an assembled block rotate to TDC & set a gauge at zero, then rotate 180 to BDC and measure. The crank jouranls could be offest, which will change your stoke reading vs rod length.

I thought that it was just a ratio between the stroke and the rod length?