has better low end the 12+3 is like a LL3 but with more power this is what iv seen but the sti is fast damm fast.

where can i get a crank for my evo 3

You should just stay with your Novarossi motor so you can finish your final!

why you broke it too if so dont bother.

ya

Unfortunately Wally, we don't know who you are, how hard (or easy) do you drive your car, if you geared your car right, how you broke your motor in. It's hard to say why your crank broke.

I've never broke my STI crank, and Mike Ellis also been running the crap out of his STI all season, at least 2 30 min Main and 1 45 min Main last Sunday, plus your normal practice and heats. He has no problem with his and still running strong, AND he hasn't even replaced the rod at all!

Yeah, you can say "But my Novarossi didn't break...". Well, tell you something, I started this year with a new Rex RER3, and a 1/2 gallon thru JP T03 full option. Those 2 motors crapped on me on their 2nd race and my STI has been strong. So "but my (other) motors didn't break" isn't a strong argument. Just because my Rex or JP broek and my Sirio still run strong, I don't go an assume Rex or JP are crap start posting on their threads.

I assumed that Kyosho America replaced your motor, to be honest us team guys get the same motor as anyone would, our motors aren't specially treated or made, they are essentially just "off the shelve" like yours.

Breaking one, I can understand but breaking 2... I'll have to say you might need to look elsewhere for the answer instead of looking at the quality.

Dom

Well I saw Dom & Mike's STI motors this past weekend and they ran very well as did my Nova. I may be wrong but from what I have seen motor failures seem to be more often related to improper maintenance & tuning rather than defects. Manufacturing & material defects do happen but I would bet with the production levels of these motor you could count on 1 hand all that slip through ANY manufactures QC in a year.

Mark

If you are breaking cranks I would strongly suggest you check your bearings and make sure you haven't spun the bushing in your conrod. Most likely your motor overheated to the point where the bushing rotated to where its oil pickup is no longer aligned causing a lubrication failure.

I agree with you and Dom 100% ...we have several guys running them and no probs.....

Hey Robert,

I tried running the Novarossi 2630 on my STI again but I still found the powerband to be flat. I figure it might be the header as I'm running the Skyline header with the 2630. What header do you recommend? I'm not giving up on this pipe just yet.

Dave

What was the performance like with the VR12/VR12 Plus?

Try the 5 fin part #41615 conical header nova rossi....should be the ticket..hope this helps...

Is there any rules on how many fins you can have? Do you get more performance with more fins??

If you increase the length in between the manifold and pipe, the engine will get better low rpm power(more torque) but you will loose high rpm power(less rpm at full speed).
If you decrease the length in between the manifold and pipe, the engine will get better high rpm power(more rpm at full speed) but you will loose low rpm power(less torque).


Hope this helps...

http://amazinghobbies.com/Novarossi%...20manifold.htm

I love the performance of the STI with the VR12 Plus. I just want to get the 2630 working because Uriah Murnan and Robert say it performs even better.

BTW, thanks Robert.

Dave