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#77550 - 11/02/06 01:13 PM RPMs
Drew521 Offline
Member
Registered: 10/31/06
Posts: 85
Loc: New Jersey
I just traded in my 97 Grand Prix SE for an 02 GT.
The 97 SE flew on the highway, it would do about 70 mph at 2000 rpm's, 2500 was good for 86 mph's. All it had was a K&N drop-in filter.

The 02 GT seems much slower on the highway. The same RPMs get me about 6 mph less. It is completely stock (I plan on putting the Wizaired cold air box in soon!)

I just wanted to see if this was comparable to other stock 2002 grand prix's, or my air intake is just bad.
Thanks for your help!
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#77551 - 11/02/06 11:30 PM Re: RPMs
RooK Offline
Member
Registered: 03/07/05
Posts: 5158
Loc: Southern KY
Why would the air intake alter rpms? I'd be curious to see what tranny your SE had, but the it's typical to turn about 2000rpms @ 65mph in my SE.
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'13 Mustang 3.7V6 - MT82
'00 GP SE (L67 Swap, XP, Headers, 3.25")
'98 GTP, '01 Bonne
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#77552 - 11/03/06 12:22 AM Re: RPMs
brown Offline
Member
Registered: 07/16/06
Posts: 1382
Loc: Belleville, MI
dont buy a CAI, build your own. More fun and I think they work better when you build them. Maybe thats just my pride kicking in though. I have a GT but I've never really paid attention to see what RPM's I'm turning at highway speeds.
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#77553 - 11/03/06 08:30 AM Re: RPMs
HercMan(Rob) Offline
Member
Registered: 09/12/03
Posts: 14035
Loc: Fort Worth, Texas
2000 rpms and I'm screamin down the highway at about 73 mph.

What size tires are on your GT? If they arn't close enough to the stock overall diameter that will throw your speedo off and account for the differences.
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#77554 - 11/03/06 10:08 AM Re: RPMs
Baas140 Offline
Member
Registered: 09/06/06
Posts: 253
Loc: Grand Rapids Michigan
in my gt, doing 80 my rpms are at about 2800 or so..
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#77555 - 11/03/06 01:03 PM Re: RPMs
Drew521 Offline
Member
Registered: 10/31/06
Posts: 85
Loc: New Jersey
Stock 16" wheels
225/60R16 tires

What can I do get more mph for the RPMs?
Thanks.
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#77556 - 11/03/06 01:12 PM Re: RPMs
Richard Candelario Offline
Member
Registered: 12/15/05
Posts: 5286
LOL, JATO comes to mind, yet that's an old topic, so I digress...
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WizAire CAI w/9" K&N & HV3, 2.5" d/p w/h/f cat, Cobra CB, PowerSlot slots w/Hawk HPS, GR-2s, GMPP handling kit, NextLevel STBs, Pilot Sport A/S Plus tires.

98 L36/MM5
RaC
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#77557 - 11/03/06 01:49 PM Re: RPMs
Blackarrow98GP Offline
Member
Registered: 06/29/06
Posts: 3618
Loc: CT, U.S.A
He spoke the J word! eek eek wink
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#77558 - 11/03/06 02:06 PM Re: RPMs
ifitwasnt4u Offline
Member
Registered: 12/27/05
Posts: 2898
Loc: Phoenix, AZ
lol lol we know what it will do with an impala, how about straping some to a GP?
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#77559 - 11/03/06 03:22 PM Re: RPMs
Richard Candelario Offline
Member
Registered: 12/15/05
Posts: 5286
Hmmm, Mike, you're in AZ, why not give it a shot for us? Guys, I tried to digress, you lured me into it...
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WizAire CAI w/9" K&N & HV3, 2.5" d/p w/h/f cat, Cobra CB, PowerSlot slots w/Hawk HPS, GR-2s, GMPP handling kit, NextLevel STBs, Pilot Sport A/S Plus tires.

98 L36/MM5
RaC
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#77560 - 11/03/06 05:34 PM Re: RPMs
HercMan(Rob) Offline
Member
Registered: 09/12/03
Posts: 14035
Loc: Fort Worth, Texas
To lower your RPMs at a given speed will require a gear swap.

The GTP has a 2.94:1 final gear as the GT/SE has a 3.29:1.

But if you put the 2.94:1 in a GT/SE you'll lose quite abit on the 0-60 times. The GTP gets away with it cause of the power adder.
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#77561 - 11/03/06 10:50 PM Re: RPMs
brown Offline
Member
Registered: 07/16/06
Posts: 1382
Loc: Belleville, MI
Quote:
Originally posted by HercMan:
2000 rpms and I'm screamin down the highway at about 73 mph.
you slay me herc, screaming down the highway at 73...lol
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#77562 - 11/04/06 07:41 AM Re: RPMs
HercMan(Rob) Offline
Member
Registered: 09/12/03
Posts: 14035
Loc: Fort Worth, Texas
Yep that's screamin when there's snow on the ground smile
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#77563 - 11/04/06 03:39 PM Re: RPMs
brown Offline
Member
Registered: 07/16/06
Posts: 1382
Loc: Belleville, MI
well you didnt say anything about snow. I thought you meant drive pavement on the highway. We dont have any snow yet where I am in MI, but it was snowing the other day (none of it stuck) and apparently everyone forgot what snow was and how to drive it in. I was on the highway and everyone slowed down to 35! It was like it was manna falling from the sky and they all wantes to watch.
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