What's your speed @ 4K rpm?

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fowljesse
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What's your speed @ 4K rpm?

Post by fowljesse »

So Mooneggs asked what MPH I was at @ 4,000 RPM because he wondered what the difference was between my K8 tranny, and his 626 is. Mine is at 79, and his is at 82. Maybe our speedos are off, or something. We both have stock 15" wheels. So, what's your speed at 4K, and what gears do you have?
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coltfoet5
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Re: What's your speed @ 4K rpm?

Post by coltfoet5 »

At 4k im in the 80s. I have a PGT trans
wytbishop
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Re: What's your speed @ 4K rpm?

Post by wytbishop »

at 4000 i'm at 120kph...73mph on stock K8 tranny.

edit: On the way into work this morning I checked and it's closer to 78-79mph than previously stated.
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tmac4t4
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Re: What's your speed @ 4K rpm?

Post by tmac4t4 »

before i messed up my guages, i was doin 130-135 at 4000rpm...not sure if my 17's were throwin it off, but i normaly cruise the highway at 3000rpm steady at 120 :shrug: thats with k8 auto trans
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Re: What's your speed @ 4K rpm?

Post by hgallegos915 »

coltfoet5 wrote:At 4k im in the 80s. I have a PGT trans
Pgt trans and MX3 trans are the exact same.

maybe your pgt got an mx6 trans.
-hec

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Re: What's your speed @ 4K rpm?

Post by Mooneggs »

wytbishop wrote:at 4000 i'm at 120kph...73mph on stock K8 tranny.
this is just like my k8 is as well...
coltfoet5
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Re: What's your speed @ 4K rpm?

Post by coltfoet5 »

Ah, you may be right I forgot I put a new tranny in my probe last summer with the ze. It might be out of something newer.
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OutlaW
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Re: What's your speed @ 4K rpm?

Post by OutlaW »

Mooneggs wrote:
wytbishop wrote:at 4000 i'm at 120kph...73mph on stock K8 tranny.
this is just like my k8 is as well...
mine too :)
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Re: What's your speed @ 4K rpm?

Post by Nd4SpdSe »

No matter if you have a K8, KF or KL, your RPM's will not change because of the motor. It'll change cause you've either got a different ratio tranny, or you've changed the size of your tires

Mx-3 & Probe : 4.38:1
626 & Mx-6: 4.11:1

Myself, with my K8 tranny, regardless of K8 or ZE motor, i do about 120km/h @ 4000rpms
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tmac4t4
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Re: What's your speed @ 4K rpm?

Post by tmac4t4 »

are those ratios the same for 5spd and automatic..?
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Re: What's your speed @ 4K rpm?

Post by Nd4SpdSe »

Nope
1992 Mazda Mx-3 GSR - 2.5L KLZE : Award Winning Show Car & Race Car ['02-'09] (Retired)
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hgallegos915
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Re: What's your speed @ 4K rpm?

Post by hgallegos915 »

Nd4SpdSe wrote:No matter if you have a K8, KF or KL, your RPM's will not change because of the motor. It'll change cause you've either got a different ratio tranny, or you've changed the size of your tires

Mx-3 & Probe : 4.38:1
626 & Mx-6: 4.11:1

Myself, with my K8 tranny, regardless of K8 or ZE motor, i do about 120km/h @ 4000rpms


VERY well said!
-hec

MX-3 w/ curved neck millenia klde, boosted @ 5 psi. /bov and wastegate are good!/ nitto drag radial/ gutted interior/ millenia red top injectors, vortech fmu/aem wideband/ all bolts ons/ Car put together 100% by me. Mechanic? who needs a mechanic? ew.. real men work on their own cars!
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fowljesse
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Re: What's your speed @ 4K rpm?

Post by fowljesse »

Anyone else with 4.11:1 gears?
'93 GS - P&P DE w/ ZE exh. cams/ pistns, KLG4 IM, 65mm TB, MSnS, Phenos, K&N RAI, UDP, Grnd wires, rear batt, filld MM, torq strt, TWM short shftr, Exedy, Lng tube hdrs 2.5" Side exhaust, H&R sprngs, Poly bushngs, strutbars, Alum. crss mmber&tiebar, 22mm swybar, solid links, Direzzas, leather int, Alpine 9805 stereo & alrm, keyless entry, 10 Boston Accoustics spkrs, Prjectrs, Blaster2, CF hood, FG hatch, Lexan
Feivel
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Re: What's your speed @ 4K rpm?

Post by Feivel »

i do 120 at 4000k ze engine k8 tranny. so the big difference is about 10-15km/h.
i am currently looking for a 626/mx-6 tranny.
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Re: What's your speed @ 4K rpm?

Post by Yoda »

With a stock tranny I was doing about 120kph@4000
with 4:11 approx 140kph@4000 (swapped 06/1997 with engine)
with 0.69 5gear swap almost 160kph@4000 (swapped in 1998)

BTW My cars been off the road and in storage since 2001 with a blown tranny.
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