Dyno'd tuned or other option?

final5-0 said:

Here are two things I think are key for what you are trying to do.

You or a Pro can't tune with your maf/inj's as they are too small

Money don't have anything to do with this issue.

No matter which way you tune ... you gotta part with the money
IF
you wanna do it right for max power
AND
near perfect drivability

Please understand me here ... not tryin to be a hard azz
I do understand about the money all too well

For now ... you got two options to tune your combo .................

I'll give you the best (mo money) first
AND
the second best (less money) but if I was you ..................
I'd only use that method until you can move to the other method.

1 Maf of sufficient size to handle airflow needs of a blown combo.
Something like a Lightning maf, Granatelli, ProM 77/80 with 42lb cal, etc.
42lb inj will work nicely with your plans.
At least 255 intank pump will be needed to push enough fuel.
A custom tune by you or a Pro

2 Inj's first
Use a fmu (mechannical tuning) to elevate fuel pressure which makes your 24's act larger.

Now for the maf ... not as simple as the inj's
For a maf, you or may not be able to use the maf you now got.
As has been said above, things don't match like they should
HOWEVER
Even if you got a maf caled for 19's that would not work
cause
your blown combo would peg that baby maf in a heart-beat
Heck, you very well could peg a 24 and maybe a 36lb caled maf

Moving to a different subject about your concerns ....................

If you wanna learn to self tune ...................

You could not have started with a more challenging way to learn.
Blown combos are way less forgiving of mistakes than NA.
Not saying you can't do it.
Just more difficult.

Hope this helps you in some way

At least you now got some more stuff to think about

Grady

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hrspwrjunkie said:

There's something you didn't take into consideration. The P heads aren't much different in flow characteristics to the stock Cobra heads (GT-40). The E303 was specifically tuned for that combination and I think you would be happier with the E-Cam in this circumstance as the X was designed for a more aggressive head, the X head. It will also have rougher idling characteristics than the E cam. You will probably see some gain in the top end, but do to the design of the heads, there's a good chance you could see a drop in part throttle driving power as well as low-end power.

That said, tune it but check out a tuner MAF (which isn't designed to work with a specific computer but for custom tuning to any combination) such as is currently offered by C&L: www.cnlperformance.com

I believe that MAF is offered in 76mm which is definitely big enough for your application and will provide better metering than a larger MAF.

There are other companies, such as Pro-Flow, that provide a suitable MAF, but they changed owners some time ago and I forgot the site address. They are tuneable to specific applications if need be.

As far as the 24 lb injectors, they are suitable to a maximum of a 400 horse application, the 30s can be tuned for up to 500, 36 to 600 and 42 to 700.

Some of the running gremlins you may have run into are because the 94-95 computers aren't as capable as some of the ealier computers to deal with airflow change and the idle is a bit too eratic for the computer so to get the motor to be more drivable, it will need to be recalibrated. If you go with the X cam, it will only get worse. An in-between would be the F-cam which was designed for the standard GT-40 heads...specifically in the Lightening, but the flow characteristics will be more optimized.

Ryan

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