303whp NA. 398whp on nitrous.

[zach44102]

Blue turd broke 300whp NA and made 398 whp and 377wtq.

 

[SHOdded]

That should make it one hellaciously fast SHO!

 

[bpd1151]

Congrats Zach!

Most impressive good sir!

 

[SHOCH]

That turd got some serious runs!

 

[94shodriver]

Did you pull another ~20hp from just headers, throttle body and a re-tune? Can't remember all your mods.

 

[Toolman]

Headers, TB and no tune, as in Zach tuned it, not Jason. So after Jason gets his hands on it, I bet we see a fee more ponies.

This engine is making an honest 350hp at the crank. Truly shows the potential of the Yamaha. Stock block, stock crank, stock rods, stock heads.

 

[jayro]

Nice numbers!!! So what is your plan for getting that to the ground? I would think that traction, even with the right tires, would start to become an issue.

 

[luigisho]

Is there a print out with a graph? I'd like to see the hp/tq data points. What's the piston setup? C:R?

 

[zach44102]

Bpd1151 you ready to get drug on the track at the convention?

 

[zach44102]

This is a NA pull. I am on my tablet so i dont have a pic of the 303 pull. This is one i sent jason while i was tuning it.

 

[SHOCH]

What kind of beer should Mike be shopping for? poke poke

 

[SHOdded]

Using a 100 shot of nitrous, Zach?

 

[zach44102]

100 shot when i am on the bottle yes.

 

[AREA 91]

http://www.shoforum.com/index.php?threads/blue-turd-hits-the-dyno-again.124029/

 

[shobote]

Great stuff, is this on pump gas or race fuel ?

 

[zach44102]

e85 out of the pump

 

[iminhell]

Late to party but,
The dip on the top end, and forgive me because I don't see RPM on the graph, that looks about where the secondaries open. So my though is that you must have hoged out intake and once the secondaries open it kills air speed. Reducing the diameter of the secondaries might smooth that out and give an little extra boost.

 

[Irish Pride]

If I'm not mistaken, he has deleted the butterflys all together. The intake is completely free flowing 100% of the time.

 

[gmail]

Looking awesome

 

[rubydist]

Zach, would you be kind enough to publish a graph that includes rpm so that we can see the range over which that curve exists?