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#16
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i thought the stock maf was good for 250 crank? maybe im wrong
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[SIGPIC][/SIGPIC] STi BBS wheels,legacy gt 4.44, 3" catback exhaust, Stance GR+ 7k/5k, QS Teflon adjustable endlinks, Hankook EVO 245/40/17, 95-LS escaine seats, GC8 V7 steering wheel, JDM clear corners, small car clear lenses, Alcyone badge, JDM rear taillight, 97 grille, stevesby bumper, PWR radiator, Perrin Crank pulley, Urethane Swaybar bushings, urethane diff bushings, DDM 6k 55watt lows and 4500k 35watt fog lights; $15/15min mod, Motorsport whs 22mm rear swaybar, QC shift kit, ToMyx intake, z32 aluminum calipers 13" rotors, nitrous express proton + wet kit. |
#17
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on paper, yes that is true... in real life, I know otherwise... I was maxing out my MAF with my old N/A 5mt.
Tom |
#18
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Like I said, I don't have all my mods listed or they aren't even knowledge to my closest people in the SVX world. The MAF is dealt with and 2V7 will take care of it for good later on.
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#19
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Jason, I know I am giving you a hard time... but its for good reason. I don't believe I was making over 275 crank horse on my old 5mt and I had everything done to that car... I had intake cams and the stage 2 w/ z32 MAF adj. FPR and all the "tweaks" that could strangle every once of HP out of the car... To be honest I think you are overestimating the output of your engine over stock. Until one takes the plunge and converts to an MT, goes FI, or does a significant engine build; the engine can only be considered in stock form.
Tom |
#20
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#21
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well, considering your mods are only making up for stock restrictions... you are probobly making 230hp... Considering Chike was running the saem times and trap speeds with the stock engine and stock ECU
Tom |
#22
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#23
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So with all of Jasons listed mods, he is still only putting out 230 crank hp? If a 100% stock svx has 230hp then what would you call jasons mods? super stock? If he had a z32 MAF what should he be making? 250hp?
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#24
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to answer the questions...
No, Chike did not have any computer work... he had a 96. Over time, engines loosen up and lose their ability to perform. To make up for this, the mods listed are exactly that... Infact, these are not mods at if you look. -He has a light weight crank pulley. These do not add power, they mearly create the illusion of power by reducing rotational mass and allow the engine to spool up faster. - The Stage 1 ECU does not really add any power, more or less it smooths out the power curve for a more continuous power curve which translates into a better way to put the power to the wheels more. - The TB bypass is a cheap way shade tree racers try make take up some extra ponies. This "mod" keeps coolant from flowing through the throttle body. In the end it keeps the incomming air a tiny bit cooler and that gives a more dense charge... but the true effects of this are really so minimal a dyno wouldn't even pick it up. - An air intake will give you absolutely ZIP. The stock intake is good to flow over 400 N/A hp with a good filter. It draws from the same ambient air in the fender as a cone intake would. this is the reason that I still have a fram filter and a stock airbox on my supercharged car. To be honest, the only worth while mods on an N/A car are intake cams and an adjustable fuel pressure regulator. This in collaboration with a wideband and the stage 2 from ECUtune will give you the best gains if you adjust the fuel pressure regulator to reflect the best possible afr possible. Thats my rant, ask any reputable mechanic and they will concur, unless they are trying to sell you something Tom |
#25
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Last edited by Budfreak; 05-16-2007 at 11:41 PM. |
#26
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The only way I can think to answer this is to stick Road Demon on a dyno and see what the numbers are. Run a comparison between SVX motors at different mileage points. You could take Shelfy's two cars (16 and 55K miles) and compare the power between them, along with some higher mileage cars, to determine how the power drops off with wear. I'm sure he'd lend us his cars for some tests
Jason, I'm sure your car would eat mine for breakfast. Actually, my car needs to runs some laps and get into shape, so I'd only be toast, not a full breakfast. Maybe a couple strips of bacon. mmmmmmm...bacon.... Wait, what are we talking about? Oh ya... Having a 4.44 trans gives a big boost in acceleration. My parents' Foresters can probably give my SVX a good run off the line (I think they have 4.11's), although I can ruin them once we're moving. With the 4.44's you don't actually need more power to get a bigger kick when you step on it. I'm sure Road Demon makes more power than the average SVX, but how much more, and if there's more than stock peak HP, would take a dyno to sort out. My .02. Well, that was a bit long. Maybe .03. And it's 3AM and I have a date for lunch tomorrow. Off to bed!
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Chris 92 Ebony Mica LS-L "A Rolling Restoration": 223,250 KM - Sleeping 2007 STi 6MT, Stance GR+ coilovers, PWR Rad, JDM hood badge, svxfiles 6000K HIDs, JDM Clear Corners, $15/15 min mod, $20/20 min mod, Energy Swaybar Bushings, Hella Supertones horns, Gold STi BBS rims, Group A lightweight crank pulley, A/C system removed, Custom header-back exhaust, Hybrid carbon/metal rear sway bar, restored headlights with CCFL halos 2008 Subaru Legacy Spec B - Diamond Grey Metallic - Sold 2020 Ram 1500 Longhorn - Red Pearl |
#27
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Tom, you never answered my question? Your tellin me LAN's software does'nt increase "crank" HP? rather it's not a mod but a way to loosen up a 15 year old motor? does that include regular maintenance and tune ups? Budfreak ran a 14.94 and you ran a 14.5! i am sure after your recent purchase it should blow them numbers away.... but if a "230" hp modified svx can run 14.9's, then what does a 100% totally stock/NA svx run? i am
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#28
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[SIGPIC][/SIGPIC] STi BBS wheels,legacy gt 4.44, 3" catback exhaust, Stance GR+ 7k/5k, QS Teflon adjustable endlinks, Hankook EVO 245/40/17, 95-LS escaine seats, GC8 V7 steering wheel, JDM clear corners, small car clear lenses, Alcyone badge, JDM rear taillight, 97 grille, stevesby bumper, PWR radiator, Perrin Crank pulley, Urethane Swaybar bushings, urethane diff bushings, DDM 6k 55watt lows and 4500k 35watt fog lights; $15/15min mod, Motorsport whs 22mm rear swaybar, QC shift kit, ToMyx intake, z32 aluminum calipers 13" rotors, nitrous express proton + wet kit. |
#29
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From what i can tell here, it seems RD is interprating his acceleration time as increased hp, when in fact that really couldn't be further from the truth. Having a 4.44 will give you more bang for your buck at lower speeds, but looses in high end compared to the 4EAT. HP off the crank will not change that much from the mods that i've read about so far, probably just about restore it to stock, maybe a hair more.
Light-weight wheels != more hp. light-weight pulleys != more hp. 4.44 ratio != more hp. If you take out your seats, glass, roof, trunk, and hood, your car will loose a few hundred pounds. It'll see improved track times as well. Did you increase your hp? No. Light weight pulleys spin faster because they need less force to get it going, it weighs less. Same with your wheels. The tranny is geared differently than the stock tranny, so that will give the illusion of power as well. These don't add power though. They will show you differences in track time, sure, but not add power. Quite simply, the biggest effect on your timesheet is likely to be your tranny. You didn't add much horse power, but rather patched up places the engine would lose horsepower. You increased efficiency, that was lost over the past 15 years and how ever many miles the engine has run.
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*No SVX at the moment...* 1987 Winnebago Elandan 35' 2001 Yamaha Roadstar 1600 2004 Ford Excursion Eddie Bauer, 6.0litre Power Stroke Diesel - Daily Driver. Life should NOT be a journey to the grave with the intention of arriving safely in an attractive and well-preserved body, but rather to skid in sideways, scotch in one hand, body thoroughly used up, totally worn out and screaming HOOOOYA !!!!! |
#30
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Just an observation from a non-motorhead I can concur with the difference the 4.44 makes in acceleration, having just undergone the swap. My observation is it's a kick in the pants! I have no idea what my car runs 1/4-mile, but it's bone stock except for that.
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Jerry 2005 Baja Turbo 2008 Ford Crown Victoria Police Interceptor jnj7707@yahoo.com |
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