How fast will it go

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04-26-2008, 09:05 AM

#11

shaun12

2nd Gear Member

Join Date: Jul 2007

Location: Baltimore

Posts: 302

RE: How fast will it go

Quote:

ORIGINAL: jlw2387

Ps.. according to cliffyk's little tool my car should be cabable of 190mph.... to bad my ***** are only good to about 140.

lol....

04-26-2008, 09:10 AM

#12

dennis_112

3rd Gear Member

Join Date: Feb 2007

Location: Jackson, Oh

Posts: 897

RE: How fast will it go

Quote:

ORIGINAL: black35th

Why would you ever want to go that fast? It just seems a bit dumb to me.

I mean I'm not gonna lie, I do my fair share of small street races its usually just the 1-2 shift from a light and then back down to cruisin speed.

dennis_112....I assume that you live in Ohio and around the Dayton area since your blower was installed by Dayton Performance ......Where exactly are you located? I'm about 15 mins. south of Dayton

Sorry to jack the thread, I had to ask

I live in Jackson, Oh. Its about 110 miles from Dayton. I was just up there letting Mike do my clutch. I love the new shop. He done my blower in his old shop about a year ago.

04-26-2008, 11:31 AM

#13

cliffyk

TECH SAVANT

Join Date: Dec 2006

Location: Saint Augustine, FL

Posts: 10,938

RE: How fast will it go

Quote:

ORIGINAL: jlw2387

Ps.. according to cliffyk's little tool my car should be cabable of 190mph.... to bad my ***** are only good to about 140.

[/align][/align]Depending on what gears you've got, and if you can make 400+ HP at what ever revs work out to 190 mph, then you could do it. [/align][/align]I've only owned two vehicle where I ran out** before the vehicle did, a 1969 Charger Daytona with a 440 "6-pack" and a auto tranny; and a late 80s Yamaha V-Max...[/align][/align]----------------[/align]** - of what my mother used to call "testicular fortitude"...[/align]

04-26-2008, 01:05 PM

#14

bjh061487

3rd Gear Member

Join Date: Jan 2007

Location: Philly, PA

Posts: 965

RE: How fast will it go

i got my 98 NPI up to about 135 according to the speedo, but a stock speedo isn't that accurate when you get up to numbers like that

04-26-2008, 03:12 PM

#15

N3TD3V!L

1st Gear Member

Join Date: Jan 2008

Location:

Posts: 55

RE: How fast will it go

Well, I don't know what all has been done to my car (2003 GT Auto) other than the visible bolt-ons* but I've had my speedo pegged at the spot where 155mph at nearly 6000rpm and I still had some throttle left.

*(BBK pulleys, BBK CAI, BBK cat-less O/R H-pipe, Flowmaster 40 series dumped, 4.56 gears)

04-26-2008, 04:03 PM

#16

cliffyk

TECH SAVANT

Join Date: Dec 2006

Location: Saint Augustine, FL

Posts: 10,938

RE: How fast will it go

It's the 4.56 gears, are on the borderline of where you run out of revs before running out of HP--that and the fact that the speedo probably reads fast at the high end. Take a GPS next time and let us know how fast you were really going, probably150+. [/align][/align]This is because because the 4.56 gears allow you to run higher revs in high gear, gettingyou get up into the meat of the powerband (actually a bit past it with the 4.56s). This is true of all lower (numerically higher) rear end gears. [/align][/align]With the stock 3.27s the engine's turning 3850 or so at 140+, not in the peak of the powerband by a long shot; with 3.73s you're up to 4350 rpm at 140, also further up into the power band which lets you get another 7-10 mph or so (up to 4650 rpm @ 150 mph).[/align][/align]With 4.10s 140 mph gets the engine up to 4750 rpm, gettingclose to peak HP but not quite there--peak is going to be around 5000+or so and be pretty level to 5400, with 4.10s thats nudging 160 mph or so. With you 4.56s you are actually on the North side of the peak but with the UDPs and exhaust work it's likely still putting out 215 to 225 HP which is enough to get you to 150+[/align]