[Atomic Ed]

Originally Posted by parish8

2900 and 45psi holding steady.

45 psi !?!?

[Perdieu]

Originally Posted by Atomic Ed

45 psi !?!?

high side and low side fuel pump numbers

[Atomic Ed]

Originally Posted by Perdieu

high side and low side fuel pump numbers

LOL! Ok, I was thinking, jeez, his power is down because his heads are lifting off the block with that kind of boost!

Need to read more carefully.

[Tcamaro]

NOS and large turbos are very fun! On my grand national I ran a 88mm and very tight converter but would spray 75hp shot and turn it off at about 110kpa. You get the best of both worlds by running a tight converter.

[PRAY]

Good work, congrats.

[ProCharger]

Originally Posted by parish8

My first trip to the track with the twins suggests some significant power at low boost. Quite a bit more than I was expecting especially when looking at some calculators. http://www.wallaceracing.com/et-hp-mph-8th.php



Stock at ran 89.6 in the 1/8mile, calc shows 447hp

E85 and some exhaust mods at ran 92.3mph, calc shows 489hp

Now add 3psi with closed exhaust, 100.8mph, calc shows 656hp

Now open exhaust which bumped the boost to 5psi, 104.8mph, calc shows 715hp

This is wg spring only and the smallest spring that came with the waste gate. I like to play with the calculators and always have an expectation when I goto the track what it should run. It is quite a bit faster than I anticipated.

Hows my old KTM doing?


The good news is that you really don't have to guess on your HP numbers.
That data log you posted shows pretty much exactly what she is doing....

I would say about 693hp (crank) based on that log. ON THE HIGH SIDE.
Which is very impressive.

E85 is the magic fuel....