[Markoz28]

Originally Posted by Camaro1973

Yes I’m one of them.

I doubt your 710-720rwhp on stock fuel system btw.

I’m running can with larger fuel lobe.

[Markoz28]

Originally Posted by JSH

My Phase I made 725 wheel with the stock fuel system, but I can't really tell what his mods are

My mods are currently
Ported stock SC
Stage 3 cam
103 TB
Rotofab big gulp
2” headers without cats
9.1 lower
NGK plugs.

I used to have 2.3 upper and meth added to current set up and made 780whp on mustang dyno. Obviously a max effort build. I have since removed those items but I’m pretty sure I’m still well over 700whp. No way I’m losing 80whp just from removing meth and 1.5psi of boost. My car actually pulls better through the RPM now. Before it would just hit crazy hard and light the tires up.

[BlaqWhole]

There are many ways to achieve that goal. You can certainly try to squeeze HP from various different methods to get to that number. But for me, I would want to do it efficiently, safely, and still have room for more. That way driveability, durability, and reliability won't suffer. So my route is to go LTs, cam, ported heads, blower swap (2650 at least), and other supporting fuel mods. You won't have any issues with that type of setup and it'll be a good DD with no issues.

Alternatively you could go the centri blower route or TTs. TTs would be more expensive and require more extensive work and maintenance. Centris are cool but for some reason I just don't think they look good on these cars. Plus you'll have to spend extra money for an IM etc. PDs are easiest and simplest.

[Camaro1973]

Originally Posted by Markoz28

I’m running can with larger fuel lobe.

Ah well that makes sense then. You originally wrote stock blower/cam and thought you had the stock cam

[Camaro1973]

Originally Posted by danhr

Incorrect. 824 rwhp through a stalled auto is about 1000 flywheel horsepower.

stalled auto is roughly 17% drivetrain loss, which is 830 rwhp.

These cars have shown to be about 15% loss which is why you see stock dynos around the 550rwhp mark.

As mentioned though some places , including Hennessy show STD numbers so compare apples to apples.

[JSH]

Originally Posted by Z OH 6

Worse yet, 824whp isn't 1000bhp, its more like 950bhp. I think Hennessey is stretching those numbers a bit and rounding.

Of course this brings up the topic of the different correction factors that each shop uses in its dyno. The new SAE J2723 is actually not a new set of correction factors, it is simply a new procedure for using the existing factors (J1349 and J1995) used by automotive manufacturers.

My car was dyno'd in Houston in July with a DA of probably 2000-3000 ft., so you know Hennessey corrected it back to something close to a sea level DA in January or 29.92 in-Hg. Without knowing how each shop handles this with their Gen 6 dynos, we'll always be comparing apples and oranges.

[Z OH 6]

Originally Posted by danhr

Incorrect. 824 rwhp through a stalled auto is about 1000 flywheel horsepower.

stalled auto is roughly 17% drivetrain loss, which is 830 rwhp.

Nope, its around 15% drivetrain loss which would put him around 950hp. It could even be slightly less than 15%, the A10 is VERY efficient.

[CW3SF]

What are A10s making bone stock if you run averages? 565ish whp would indicate 15%. 555rwhp would indicate 17%.

[Camaro1973]

Originally Posted by CW3SF

What are A10s making bone stock if you run averages? 565ish whp would indicate 15%. 555rwhp would indicate 17%.

Your maths bad.. lol.

550 on a dynojet like I said is about normal. Which is a 15% loss, 17% is 539rwhp.

[Choda]

Originally Posted by Camaro1973

You don’t need e85 or 93 with meth.

This is on 93 w/ roughly 14lb boost.

what fuel system do you have? That pull was made on straight 93 pump?

[KingLT1]

Originally Posted by Camaro1973

Your maths bad.. lol.

550 on a dynojet like I said is about normal. Which is a 15% loss, 17% is 539rwhp.

That core math logic. lol

[danhr]

Originally Posted by Camaro1973

These cars have shown to be about 15% loss which is why you see stock dynos around the 550rwhp mark.

As mentioned though some places , including Hennessy show STD numbers so compare apples to apples.

You are comparing STOCK.

If you recheck my original post, I said a STALLED auto. Aftermarket torque converters soak up parasitic loss, even when locked up.

But what do I know.

[danhr]

Originally Posted by Z OH 6

Nope, its around 15% drivetrain loss which would put him around 950hp. It could even be slightly less than 15%, the A10 is VERY efficient.

Let me know when you find a stalled auto that has a 15% drivetrain loss.

K thanks.

[Camaro1973]

Originally Posted by Choda

what fuel system do you have? That pull was made on straight 93 pump?

No changes to fuel system except for a cam, and yes 93.