DOHCVTEC190

1993 Honda Prelude VTEC with ~120k miles

Mods:

AEM CAI
AEM Tru-Power Pulleys
GReddy Header
eBay Race Cat (resonated test pipe)
GReddy SP2 Exhaust
NGK Sparkplug Wires & NGK Iridium Plugs
Exedy Organic Clutch
ACT XACT StreetLite Flywheel
VAFC-II

First run is a baseline. Second run is with tuning the VAFC-II.

Might have hit higher. The first run it was 86F and the last run it was 96F.

EDIT: Updated the picture, had a friend edit the colors of the lines to help distinguish.

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2008 BMW 335i Coupe - Jet Black/Black Dakota Leather/Brushed Aluminum Trim, Premium Package, Sport Package, STEPTRONIC, Logic7, Comfort Access, Heated Front Seats, iPod and USB Adapter

NotoriouSH

I think the Greddy header and the test pipe were the key ingredients, nice dyno and great torque!

sharkcohen

You gained midrange and top end torque, and that is what counts. Must be fun to drive.

BAR19000RPM

wow. thats pretty impressive. i thought my car only has around 140WHP. i guess i was wrong

Artifex

That's a very good dyno. Do me a favor please and re-post this under the N/A Dyno thread.

Congratulations!

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I am not an active moderator on this site anymore. Please contact Phryxis or liquidxnitez for help with your issues.

DOHCVTEC190

I posted it there too.

I got a question. My VTEC engagement is currently set at 4400. Does that seem low? I mean it did pretty much smooth out the dip. Just seems low; most I've read set it to 4700-4800 or so.

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2008 BMW 335i Coupe - Jet Black/Black Dakota Leather/Brushed Aluminum Trim, Premium Package, Sport Package, STEPTRONIC, Logic7, Comfort Access, Heated Front Seats, iPod and USB Adapter

ViciousRR

Guess it depends on where you want it to engage.. Mine is 4800, because I don't want it to hit vtec all the time.

What are your A/F settiings?

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60th Anniversary XJ
03 Bonneville SLE

BlackMagic

your curve is smooth, if the A/F looks good then leave it, what works on someone elses car wont always work on yours...point proven here.

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93 Prelude SI

D3c3p7i0n

Nice numbers:BIG THUMB: Pretty smooth all the way across!

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"You think anyone's gonna want a roundhouse kick to the face while I'm wearing these bad boys? ... Forget about it."

93ludeh22

leave the vtec crossover where its at, you got a good midrange gain by moving it.

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-Steve