John,
Do you need a head count to "encourage" production? I'm in.
Scott
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John,
Do you need a head count to "encourage" production? I'm in.
Scott
Originally posted by Baxman
$350 for +30 HP is a bargain! Keep in mind that if it sounds too good to be true it probably is. We were promised +49HP with the supercharger. I didn't dyno my pre-S/C'd VX, but after the installation it dyno'd 187 rear wheel HP, much to my disappointment.
Talk is cheap. Show me the dyno results, and I'll show you the $350.
Rick
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If I recall the rear wheel HP of a Stock VX is about 166 at the top of it power band. (About 3500 RPM)
Reply:
SC DYNO RESULTS AT TOP OF POWER BAND ( About 3500): Indicated 237.4 HP. When Xmission shifts HP drops off to about 187. which results in about a 20 HP increase at that & higher RPMs
My Vx was the first one to have the supercharger installed. Aside from installation of 5 lb pulley. HP & torque figures shold be very close.
DYNO RESULTS
Before SC install- HP-165.3-RPM 5025- MPH 103
After SC install- HP-212.8-RPM 5025- MPH 103
TORQUE
Before SC install- 179.8- RPM 4106-MPH 85
After SC install- 235.6- RPM 4106-MPH 85
Dragon Bob
I checked my files and here is what I have:
Anita's Baseline and after exhaust installation
Boiled down from all of the data.
Dragon Bob's data - both raw and boiled down The raw file, when converted to excel format is about 3000 rows long and 12 columns wide. This data is baseline, after S/C, then after exhaust with the S/C.
This may be why I got run off from there. At the lower RPM's the S/C added 40 HP and the exhaust added 85 more.
The files are mixed Excel and Word Pad. I'm not going to paste them here. If someone wants to do that I'll send them to you.
FF
P.S. Bob's numbers are correct as I remember.
FF
WHAT??? Where do I sign up for THAT exhaust?!? Is that 5hp more?Quote:
Originally posted by FeatherFoot
At the lower RPM's the S/C added 40 HP and the exhaust added 85 more.
FF
actually it is more as you increase in rpm for a while, at 3000 RPM the exhaust added 92 HP to the S/C'd engine.
That's why I want someone else to post the charts etc.
FF
92 hp for the Powervault and ony 40 for the SC? Damn I should have put two PVs on my VX...hell maybe three if I can figure where to hang it :)
Scott
I will be the first to add that the PV only ALOWED the S/C to make that much more power. Mufflers only absorb power.Quote:
Originally posted by ScottinMA
92 hp for the Powervault and ony 40 for the SC?
Scott
FF
John,
I know...it just was funny. I had this image of the back of my car with three exhaust pipes connected to PVs..such an imagination.
errr, when he said 92 hp WITH the exhaust...that means ontop of the supercharger. because an exhaust, custom cat or whatever on a stock ride will only get you at most 10-15 hp, probably even less. WITH a supercharger or turbo, it'll get you much much more and dramatic increase in power. So im guessin with the supercharger on stock exhaust it put out 40+ extra hp, and with the exhaust and intake you'll probably get another 40 more. at best...
OK, I'm going for 4 PV's (I'll figure a way to stuff 'em under the rear + a SC). I figure I'll get 368hp for the 4 PV's + a measley 40hp for the S/C -I'll be running 408hp - catch me if you can Fast & Furious crowd!! Featherfoot & I are bettin' titles - anybody in?? You're with me - right Featherfoot??
the only way i'd put money down for a SC and those chips and whatever mods there is to boost up the HP on teh VX is if it gets the rear wheel hp to at least 280. then that will be quick.
if there's nothing that can do that, then im gonna work mostly on my '92 Si and get it running 11's.
i dont like the feeling of gettin ripped by other SUVs or rides when i race 'em, which is starting to happen more and more with newer cars boasting 200+ hp easy. comparing just the SUVs...what we got under the hood isnt much anymore. 3.5L...they could have pulled out a lot more from that, at least 280 ...but nooooo stick it at 215 to the crank...
i love my VX tho, it's still pretty quick depending on weather and temperature and if i do rapid pumps of the gas pedal when it's redlining LOLOLOL WOOT
The "measly" 40hp (probably more per dyno) is coming from a 4lb pulley, which is small when looking at other setups on other vehicles. This was to keep in with the warranty. If you want more hp, get a bigger pulley.
Yeah, Isuzu could have put more than 215hp in there (more like 165 rear wheel hp), but so could anyone in anything. I knew when I test drove the VX that it wasn't a rocket by any means, but I bought it, and so did you. Why? The nature of the beast!
tru tru, what you said is correct. buuuuuut i didnt buy it =P my parents went out searchin for a ride for me, even tho i just said dont waste money buying a new one and get me a used ride...but of course they're against me modifying because supposedly it's dangerous and you get pulled over alot...whcih is true puahaha. so yea...they came ome in the spring of '99 with this weird lookin ride which i loved right away...except for the non-manual aspect. what son wouldnt be grateful for his parents droppin 32g's on a brand new ride for him as his first whip? yah...but now my rents are overseas most the time and im off at college by myself, i've been slowly modding it...to soem extent 'cause its' only capable of so much.
that's why i stick with doing major work to a "hoopty-ricer" civic that given another year, it will be bangin out 11's....12's with decent driving...while retaining a stock look so when fools pull up next to me and laugh i can let 'em have a couple second headstart before rippin by 'em. then i plan on sellin it to some dumbass kid for more than it's worth after slapping a bunch of stickers on it and watch him **** it up and crash into a wall 'cause he aint like janet jackson, he got no control. puahahaha
ok back to studying peace no more posting for a while
NAY! NAY! SAJIB! If you want more out you got to go smaller with the pulley to turn the shaft faster.Quote:
Originally posted by Dallas4u
If you want more hp, get a bigger pulley.
FF
i think the major problem with the vx isnt the horsepower.....it was probably the weight....i mean a 4000lbs car isnt light no matter how u look at it...ppl complain about how heavy the VR-4s r but they have the power to back it up....the tod system probably doesnt help putting power to the floor either, now if only someone had the money to mod a skyline 4wd unit into the vx...tat would be a beast
________
ProFetish01
Errr, yeah. Sorry, had it backwards for a second. That's what I meant!!!Quote:
Originally posted by FeatherFoot
NAY! NAY! SAJIB! If you want more out you got to go smaller with the pulley to turn the shaft faster.
FF
Smaller SC pulley or bigger crankshaft pulley, right?
Any updates yet?
Bump... any word FeatherFoot?
Saw you were online figured I would bring it up to the top
I'm Glad you did. I haven't talked to my friend recently so I'll give him a call and reply in a day or so.
FF
One more time :)
He said the 6 cyl programmer is third in line. He has a Corvette and something else then the V6.
He's bigger than I am so I ain't gonna lean on him too hard.
FF
Is it possible that he could have it done before May 30th? I'm trying to compete in a "King of the Street" competition and the only requirement I don't meet is running a 14.999, I'm hoping that with the ECM mod and 6, possible 7psi I might just be able to pull it.
High hopes,
Alan
John, will you and your buddy be doing a baseline and post-mod dyno? I know dyno time isn't cheap, but it will go a long way in avoiding any misunderstandings or "inadvertant overstatements".
Two good questions above are still unanswered: In the multi-mode ECU, how would the driver select the desired mode?
Will the VXs slushbox tolerate more torque than the S/C already provides? I think its rated for 250 lb/ft.
Thanks
To answer 1 of your q's, a multi-detent/position thumbwheel is likely to be used.
He takes a stock vehicle and dynos it
Then a computer is used to start tweekin the fuel and timming matrices while on the dyno. The power and torque are maximized for all throttle positions between idle and WOT in 10% increments, and RPMs from idle to WOT in 200RPM increments.
example: 600 rpm idle and WOT of 6000rpm is 5400 divided by 200 (rpm step size) equals 27 rpm points times 10 throttle position points or a total of 270 points in the matrix.
there is a matrix for each program/setting.
the ECONOMY setting will maximize fuel mileagewhile maintaining a smooth running engine.
The TOW/HAUL setting maximizes the performance between 45 and 75 MPH but keeps it pulling strong all the way to redline.
The PERFORMANCE setting maximizes performance between 80% and 100% WOT That is where we block the throttle open and tune to each rpm.
Of cource there are the other niceties like rev limiter and speedlimiter dial in modifications torque convertor tuning, transmission shift points etc. that you have to input. The device plugs into the OBDII socket and downloads your stock program then you upload one of the programs to the ECU.
That way you are always able to re-load your stock program before having the VX serviced. (prying eyes will never know)
He then makes a dyno run in each program to compare to the original.
FF
So who has a super-charger, lives nearby and is willing to be the guinea pig? What about needing a stronger transmission?
Keepin' this thread alive.
Any updates on when your friend's going to be able to look at the VX, Featherfoot?
talked this week.
they are submitting the Corvette v8 plus others to CARB this week or next - after approval they move on to the V6s. I think the 3.5 is #2 in the que.
FF
Sweet! hope this pans out!!!
-Dave
Ohhhh, I'm so anxious! Thanks for the update Featherfoot!
Any progress on this?
I read that revotechnik, sold through greedspeed, greedspeed.com is universal?? I didn't think this was a 'universal' application