First Mod: Headers or Shark Injector?

[PirateZHP]

Interesting... may be another project for me...

[M0nk3y]

Headers. Reducing the back pressure and more free-flowing will help top end

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[Smolck]

So quick update: My ZHP has been giving me issues lately. As in, NO power at all. No codes mind you, just no power. I mean, I timed it at 0-60 in 9.1 seconds!

Turns out, my MAF was bad. Replaced it with an el cheapo from ebay which didn't work (CEL, no idle, el crapola) and then had to buy the big dog OEM MAF for $300 clams. Add a ticket and my software/intake/header slush fund is wiped out.

BUT, I have decided to go the Shark route when I rebuild my fund.

Thanks for the feedback gents!

[danewilson77]

So....your loss of power was fixed with oem MAF sensor? You didn't have any codes either?

Did you try cleaning your old one first (I assume you did)?

[Smolck]

So....your loss of power was fixed with oem MAF sensor? You didn't have any codes either?

Did you try cleaning your old one first (I assume you did)?

It was an odyssey that almost made me sell my car and lasted several weeks. In fact, I posted this thread in the midst, thinking the software would make me run better. Long, Long, Long story short:

Noticed the car was weak past 4k RPM. Built revs in a linear fashion, but just no power. Backed this up with 0-60 runs in the high 8's and low 9's (BAD). Car has ZERO check engine lights and no stored codes.

Replaced 90k mile Bosch plugs with NGKBKR6EQUP (slight increase)
Cleaned MAF (no change)
Seafoamed (no increase)
Replaced Beisan VANOS seals with 100k miles with new Beisan VANOS seals (slight increase)
Replaced DISA flapper with GAS rebuild kit (no improvement in power, obvious improvement in design, it is a great kit)
Replaced pre-cat 02 sensors (made it worse)
Here is where the car started to chug a little at part throttle in 4th gear which started me thinking MAF
Reset adaptations (no increase)
Lubro Moly Engine Flushed during oil change (made my clogged CVV start working again, no power added)

Lightbulb went on! "hey dummy, unplug the MAF, you have a manual trans and can drive it like that and see what happens"
P-O-W-E-R!!!!!!
Instantly the revs built hard and fast again, she drove WAY faster. 0-60 times back to 6 seconds or so.....
Installed cheap Fleabay MAF, still made power but got CEL for MAF voltage too high and the car wouldn't idle (sent back)
Bought OEM MAF and problem solved. ALL power restored, car runs great (and it should, EVERYTHING power related is new), and my MPG's is above 24avg.

Being smarter and troubleshooting the MAF sooner would have saved me a bunch of time and money. Current amount this car has cost me in 22 months $4,986.24 in PARTS ONLY! (I am my own labor)

OUCH! But hey, it's paid for!

[danewilson77]

Damn. Thanks for sharing.

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[Smolck]

Damn. Thanks for sharing.

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I can send you my old MAF, put it on your car and see if it chokes yours to death too.

[danewilson77]

I can send you my old MAF, put it on your car and see if it chokes yours to death too.

Lmao.

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[johnrando]

Glad things worked out in the end.

[Rovert]

I should check my MAF like that. If I disconnect will it throw a code immediately? What are the symptoms of no MAF connected?