[steelheadrob]

Ted,

My original question wasn't very clear.

I was wonder on your other tread

JANNETTY RACING LT1 SUPER STREET BRAWLER MAKES 700 RWHP 642 RWTQ ON 93 OCT 11.2 PSI

If you switch out the stock air box for a roto-fab, whether you could expect similar gains to bump the total to 710 - 712 RWHP. Or if the fuel limitation wouldn't allow an additional gains by switching out the factory air box.

Thanks

[JANNETTYRACING]

Originally Posted by steelheadrob

Ted,

My original question wasn't very clear.

I was wonder on your other tread

JANNETTY RACING LT1 SUPER STREET BRAWLER MAKES 700 RWHP 642 RWTQ ON 93 OCT 11.2 PSI

If you switch out the stock air box for a roto-fab, whether you could expect similar gains to bump the total to 710 - 712 RWHP. Or if the fuel limitation wouldn't allow an additional gains by switching out the factory air box.

Thanks

Yes I would expect the same 12 and 12 from the Rotofab and red filter and a bit more with the dry filter.

ON pump gas we are up against an octane wall rather than a fuel delivery wall with this package.

So for instance If I tuned for the stock air box at that power level and added the Rotofab which in fact adds more air I expect I will have to pull more timing due to the octane wall, and it may end up being a wash.

The safer approach on pump gas is go back to the 85 mm pulley, add the Rotofab for the gains up top for a more efficient 700 RWHP.

Ted.

[steelheadrob]

Thanks Ted! I appreciate the education on how all the variables work together.

[parish8]

would you mind sharing exactly what is done to the fuel system to get to the 725rwhp on e85?

lt4 pump and injectors i see. stock cam lobe and no lash cap? any meth? what about the intank pump?

got a guess on how much lower that number would be with an a8?

thanks!

[JaxChris]

I think in one of the threads they mentioned doing the mechanical and LPFP with the LT4 injectors. The vehicle is a manual, so I don't think the lash cap would be needed. Ted did say no meth was used.

I would venture a guess of 2-3% (15-20whp) in additional drive loss with the 8L90, but your drag times would still beat the manual. You're still looking at 700whp with E85 and probably able to run a 10.2 in the 1/4 with the right wheels & tires in the back. With the manual, I think 10.4-10.5 and the new LT-1 modified champ on the current fast list. This last paragraph is optimistic guessing.

[JANNETTYRACING]

Originally Posted by parish8

would you mind sharing exactly what is done to the fuel system to get to the 725rwhp on e85?

lt4 pump and injectors i see. stock cam lobe and no lash cap? any meth? what about the intank pump?

got a guess on how much lower that number would be with an a8?

thanks!

LT4 High pressure pump w lashcap, LT4 injectors, ZL-1 in tank pump.

Our cams are all ground with 32% lobe to accept lash cap.

I would expect about 3-4% less RWHP with an A-8

Ted.

[LesBaer]

I got the car back Friday and changed my flight for a business trip so I could drive it over the weekend. It's a legitimate beast and takes some getting used to lol. Once I felt it out a little I started testing some third and fourth gear pulls. Thank God I got better tires because even the Pilot Super Sports, all warmed up, would break loose a bit if you floored it in 4th already doing 70. I would be shocked if I came across anything that could keep up with me. It needs a few minor tweaks but we're going to sort those out when I get back. It's really an impressive package. Hats off to Ted and his team for the work they did. It's very well mannered if you drive it like a normal person, but drop the hammer and the speedometer can't even keep up with you. It accelerates so hard, instantly...I can't wait to get home just to drive it again

[Stefano]

"Our cams are all ground with 32% lobe to accept lash cap."

Nice gains! So you are using a lash cap on the pump along with the larger 32% lobes?

[SC88]

What kind of power would you expect with say 110 octane?

[JANNETTYRACING]

Originally Posted by Stefano

"Our cams are all ground with 32% lobe to accept lash cap."

Nice gains! So you are using a lash cap on the pump along with the larger 32% lobes?

Understand the lobe is not 32% larger at the nose,,, it is 32% shorter at the base which creates a gap that needs to be filled with a lash cap.

The lash cap by itself does not change fuel delivery.

[JANNETTYRACING]

Originally Posted by SC88

What kind of power would you expect with say 110 octane?

I would expect I could easily make 750+ RWHP without much effort, but I think we will play it safe for now this is still in fact a stock engine minus the cam package, making double stock power.

The last thing we want is a broken engine, although you must accept that possibility because that is a reality in the performance game.

Ted.

[SC88]

Originally Posted by JANNETTYRACING

I would expect I could easily make 750+ RWHP without much effort, but I think we will play it safe for now this is still in fact a stock engine minus the cam package, making double stock power.

The last thing we want is a broken engine, although you must accept that possibility because that is a reality in the performance game.

Ted.

makes sense.

Which one would make more power Meth + 93 or 110 octane?

I've never really given meth a thought but I continue to see high Hp setups using meth injection rather then higher octane. I know its Probably due to cost but at least theres not another potential failure that could happen.

[JANNETTYRACING]

Originally Posted by SC88

makes sense.

Which one would make more power Meth + 93 or 110 octane?

I've never really given meth a thought but I continue to see high Hp setups using meth injection rather then higher octane. I know its Probably due to cost but at least theres not another potential failure that could happen.

Keep in mind you need less liquid by volume with race gas vs E-85.

We also found that these engines do not like a lot of octane or Lead so I would recommend 100 Unleaded for max power on Gasoline.

It is my experience you will still make more power on E-85 than gasoline IF it weren't for the limiter being the fuel system parts availability at this time.

There are higher flowing high pressure pumps and injectors coming to market but you will fall off your chair when you see the prices.

We are making as much power as we are comfortable with on an stock long block using the LT-4 fuel system parts.

Anything above this power level will require forged internals and larger fuel system.

These engines are failing with Meth injection set ups across the nation but no one is talking about it.

Ted.

[oneredry]

simply impressive.