Real Fiero Tech

If the times and speeds are accurate.

When putting a front end back together with stock springs and UHMW bushings, I was able to bend the control arm all the way down, kick the spring into the top edge of the perch, then jack the control arm back up. Another possibility is to use spring compressors outside the car, wind several turns of...

Using 30 as reference... 30 mph = x energy 40 mph = 1600/900 = 1.78x 60 mph = 3600/900 = 4x 75 mph = 5625/900 = 6.25x For a given car (IE, assuming same weight for both times...) 30-60 in 3 sec = adding 3x energy in 3 seconds... x power. 40-75 in 4.7 sec = 4.47x in 4.7 sec or 0.95x power 30-60 in 3 ...

That happens because they are interchangeable on the outside... so an aftermarket outfit is going to use the same part for both. What I understood from Cal Kid's claim was that the factory Fiero pump was rated the same as the factory Vette pump... which is what I'm wondering. Not that it matters a w...

N* experience: 12.86 @ 106 with 1.92 short, 255 whp and 5 speed.

crzyone wrote: The LT1 fuel pump supplies a 300hp sbc, so I suppose it'll supply a 300hp N* no problem.

This was my thinking as well.

I'm not familiar with the terminology associated with the AE parameters.

Didn't Cali Kid say that the LT1 Corvette pump has the same flow rating as the V6 Fiero pump?

Not sure if that is BS or not... just looking for corroboration.

Has anyone maxed out a Fiero pump, or do they just get replaced in anticipation?

For comparison when I switched to a LS1 75mm unit on my 265hp DOHC, an increase of 13mm mind you, it lost a lot of drivability. On the dyno, the operator had to smoothly depress the throttle in order to not bog, and I lost quite a noticable amount of low end. Now the gains come 4500rpm were definat...

You are testing AE from idle, correct?

Going from half throttle to full throttle is a much smaller change in engine operating state than going from closed throttle to half throttle.

6 HP? 6 * ~750 = 4500 Watts 4500 W/ 12 V = 375 Amps That's not coming from your alternator... I didn't think the front pulley on my TDC engine was that heavy... can the UDP really be worth that much power in just rotating mass? Have you seen dyno result for it other than the MFG's? Dynoing in 1st or...

with the cams and intake I'll be building a set of long tube, tuned equal length headers measuring 1.75" x 34" primaries with dual 2.5" collectors. I have built a set of equal length headers for a 3.4 DOHC before, and look forward to doing this. Don't forget that the increased durati...

<moderator>
Cleaned up.
I apologize for letting this get out of hand.

Keep it civil, gentlemen
</moderator>

Oh, the headwork? Not quite done yet. But if you expect GOOD headwork (Not redneck with a dremel), you also expect a check around 2 grand. I supplied the engineer with 4 heads, he used 2 for cutting into pieces. He then ported them, rewelded the insides, and reported the ports to totally redesign t...

It's plenty fast enough to run an engine. If it were that bad, it wouldn't be "the standard". Most of the computing power of modern PCM's do NOT go into managing the engine. Modern PCM's have a lot more to do in terms of communicating with other computers in the car, performing diagnostic ...

Just 'cause you can't speel sober doesn't mean i can't spell drunk


D-R-U-N_K

<drunk>

AE is to compensate for the fact that both MAP and fuel pressure lag changes in throttle position by a certain amount that derives from manifold design (specifically the distance from TB to MAP sensor and pressure regulator).

Tres Generaciones
Grey Goose
Three Olives


Good friend's birthday

Not surprised that Pat Robertson made #1.

Maybe AE doesn't need to differentiate anything above 50%/sec. Maybe everything above that takes the same curve. Okay, then why would changing the top 4 values in the table by 10% not affect the dip seen on a WOT run? Is 10% not huge? Maybe I need to go back and stare at your numbers until I'm cros...