Crower Stage 2: Dyno Results - Honda Prelude Forum

<h22a4> · 02-09-2006, 10:20 PM

okay --- so recently i've been building up my crower stage 2....

I have

AEM intake, Megan Headers, Cat, 2 inch exhaust...crank pulley, fidanza flywheel, crower stage 2 non-idle lobes, skunk2 valvetrain, manual tensioner swap, removal ps and bs, 345CC injectors....

went to the dynojet and made 191WHP SAE and 150 torque, 195 non -sae.

problem occured in the upper rpms as the injectors duty cycle reached 100%.... didn't bother tunning ignition timing and cam gears as I was running lean already....

need to upgrade injectors apparently now and retune... and maybee a bigger exhaust

BLACKISWHACK · 02-09-2006, 10:32 PM

<h22a4> · 02-10-2006, 01:30 AM

i'll post the graphs and video sometimes today ---

i still need to figure out how my injectors got maxed out....i twas surpurising......... i'm only pushing sub 200whp

TimeRacer · 02-10-2006, 04:08 AM

I can't imagine a situation where you'd need to go 100% duty cycle with the setup that you listed there. Do you have an adjustable FPR or something? Since I really can't believe that you're maxxing out those injectors with the setup that you're listing. Unless you're running high compression or something is wrong with the fuel system they really shouldn't be maxxing out IMO.

71dsp · 02-10-2006, 06:42 AM

I have a hard time believing that you're maxing out the injectors.

I have an AEM CAI, SMSP header, exhaust with a Coast Fab muffler, Euro R TB (probably worth 0 HP) and a milled head (milled quite a bit). The head and IM have some very slight polishing, which is probably worth little or no power. Stock parts are: rods, pistons, valves, cams, intake manifold, fuel rail, injectors, and fuel pressure regulator. The bottom end has been balanced and I have eliminated the balance shafts. The PS is also gone, so I'm running a Euro R crank pulley. With 5 miles on the engine, after tuning, it made 204 WHP and somewhere around 160 tq. The injectors still had room for more power, so I don't see how you're maxing out injectors that are larger than stock!

<h22a4> · 02-10-2006, 07:58 AM

I dunno guys ----- i'm trying to pinpoint the error in my setup, as I cant' belive this either.......

i'll post more charts up for anaylsis.....something is wrong somewhere....... either the injectors were installed wrong or the e-manage was installed wrong........

Zbone · 02-10-2006, 08:03 AM

Yeah... a built head with cams should give you more power than that...

Have you tried changing the fuel filter? they're not "supposed" to go bad, unless you overfill your gas tank alot; that causes the carbon vapor filter to disintigrate and fall into the tank.

71dsp · 02-10-2006, 08:45 AM

Just out of curiousity, have you checked the VTEC lobes and rockers for wear?

precisionelite · 02-10-2006, 12:15 PM

congrats on the #'s man. You could probably gain some w/a 2.5'' exhaust and a better header.

<h22a4> · 02-10-2006, 02:00 PM

vid

http://videos.streetfire.net/player....9-FDCD604CCF60

precisionelite · 02-12-2006, 12:38 PM

At 6800, your HP looks like its on crack, lol. Why does it do that?
Holy **** Your VTEC sounds so ******* nasty!!!!! Big

<h22a4> · 02-12-2006, 08:34 PM

starting from about 6500 - 6800rpm, my injectors are at over 94% duty cycle so i guess the injectors are not spraying properly at that point.....

sedracer · 02-12-2006, 09:02 PM

Quote:

Originally Posted by Zbone

Yeah... a built head with cams should give you more power than that...

Have you tried changing the fuel filter? they're not "supposed" to go bad, unless you overfill your gas tank alot; that causes the carbon vapor filter to disintigrate and fall into the tank.

IMO that motor is making pretty good power for having stock compression and a megan header which is pretty restrictive, by adding a good equal length header this would easily make over 200whp if the injector problem is fixed, i'd bet it'd be even closer to making 200whp now if injectors aren't firing correctly and produce 191whp.

<h22a4> · 02-12-2006, 09:08 PM

Quote:

Originally Posted by sedracer

IMO that motor is making pretty good power for having stock compression and a megan header which is pretty restrictive, by adding a good equal length header this would easily make over 200whp if the injector problem is fixed, i'd bet it'd be even closer to making 200whp now if injectors aren't firing correctly and produce 191whp.

my restrictions now are header (2.25) and 2 inch exhaust, its hold me back a bit

and i dunno whats up with the injectors......

Satan_SRV · 02-13-2006, 01:05 AM

not bad at all..if I'm reading this right the block is stock right? Compression will be the next step to big gains.

Artifex · 02-13-2006, 11:37 AM

Quote:

Originally Posted by Satan_SRV

not bad at all..if I'm reading this right the block is stock right? Compression will be the next step to big gains.

OH MY SWEET JESUS, IT'S JOEL!

Where u been man?

Satan_SRV · 02-13-2006, 05:07 PM

Quote:

Originally Posted by Artifex

OH MY SWEET JESUS, IT'S JOEL!

Where u been man?

working my ****ing ass off!! I still am, but yeah thought I'd put in my 2 cents

Mike95lude · 02-18-2006, 04:22 PM

If you're running near 100% duty cycle on those 345cc injectors without an adjustable FPR then therein lies your problem. Get an adjustable FPR and bump the fuel pressure up, it will help you maximize the fuel your injectors can supply.

Also, what exhaust do you have exactly? In addition to the ID of the exhaust being important, it is crucial to have a straight through muffler to maximize your power output.

sharkcohen · 02-18-2006, 04:52 PM

Sooo, what makes you think you are maxing out the injectors? And what kind of car is this? If you have an H22a4 as your name implies and you swapped in 345 cc injectors, there is absolutely no way you would come close to maxing out those injectors on that setup.

crdcz03 · 02-18-2006, 05:29 PM

do you have any previous dyno numbers?