high rpms in 5th

V6 Technical/Performance Discussions
Post Reply
murda_9
Junior Member
Posts: 4
Joined: February 22nd, 2008, 10:10 am

high rpms in 5th

Post by murda_9 »

i have a 93 mx3 v6 and my idle is good but when i drive my rpms are high like on the high way going 80- 100 kms my rpms are at 3 - 4000 it sounds like my engin will blow can any one help me find out what it is thank you maybe its suppose to rev that high but it dosent sound good
User avatar
marcdh
Regular Member
Posts: 1460
Joined: July 26th, 2006, 3:54 pm
Location: Belfast -Northern Ireland
Contact:

Re: high rpms in 5th

Post by marcdh »

Sounds normal to me. Just the short gearing of our trannys :shrug: You could get a mx6/626? tranny if it annoys you that much! Should probably answer this in your identical post in transmissions :P
AZ-3 1498cc Turbo! EVO 8 turbo and manifold, 5 stud swap, SSR Type C, DIYPNP seq Megasquirt
Mx-3 2.5 V6 Turbo 291 BHP 251 lbft @ 8psi - Retired due to rust and back at uni
View Worklog
Image
User avatar
93MX3KLZE-T
Regular Member
Posts: 49
Joined: August 13th, 2007, 12:39 pm
Location: Milwaukee, Wisconsin

Re: high rpms in 5th

Post by 93MX3KLZE-T »

You motor is a small displacement dual overhead cam motor that lives in the high rpms. That is why the vris is set to open around 4k. It's very normal to be in the high rpms in 5th gear when on the highway. When I'm crusing at 80 mph my tach is at around 4k - 4,200.

Jeremy
93 MX-3 GS, KL-ZE, T304E ***SOLD***
221.9 whp 219.0 wtq @ 5 psi untuned
13.4 @ 108 mph
User avatar
PATDIESEL
Senior Member
Posts: 4476
Joined: August 13th, 2001, 2:01 am
antispam: ~SPAM*SUX~
Location: Atlanta, GA.

Re: high rpms in 5th

Post by PATDIESEL »

Ps, the Probe trans only decreases it by about 2-300 RPMs at 80 mph. So unless you want to go through all that work for that little difference stick with the stock trans. I have a J-spec Mx-6 trans, but intalled it for the hard to find LSD. The RPM diff is not enough to make me work a full weekend... Anyway, you have a p[assing gear without downshifting how freek'n cool it that. The highway gear is one of my favorite things about the MX-3. :D
Image
ZE -strait neck,headers,2.5 exhaust,pheno spacers,lower cross member,GC coils,MS struts,Brembo slotted rotors,filled MS mounts,SS brake/clutch lines, CAI,to rear bat reloc,Hella headlamps,Hella DE fogs 180WHP
User avatar
cabriolet
Regular Member
Posts: 178
Joined: November 18th, 2006, 11:47 am
Location: Richmond, BC
Contact:

Re: high rpms in 5th

Post by cabriolet »

lol let see...I 've been doing this over a year now and I can prolly input into this ..stock K8...I gotta run about 20 minutes highway 4 times everyday (don't ask me why but I have to :? )

1st goes to 20km
2nd goes to 60km-80km (it will soar)
3rd goes to 80km-100ish ish then I just pop it into 4th or it will roar
4th is ok
5th I check constantly that its gotta be at 3800rpm or so to run at 120 km/hr
100km/hr I say 3500rpm also...but the power doesn't come in till 4000rpm but I say its pretty satisfying after that

its pretty rev hungry
I've got a pretty loud exhaust so it sucks or its good depends how you look at it
:roll: :roll: :roll:
murda_9 wrote:i have a 93 mx3 v6 and my idle is good but when i drive my rpms are high like on the high way going 80- 100 kms my rpms are at 3 - 4000 it sounds like my engin will blow can any one help me find out what it is thank you maybe its suppose to rev that high but it dosent sound good
-------------------------------------------------------
* White 92 MX3 GS * +bone stock K8+ NGK Iridium Plugs + 10.2mm Iridium wires + RAZO shift knob + 8000K HID kit + grant steering wheel [wtb] white fenders
User avatar
mx3autozam
Senior Member
Posts: 2950
Joined: September 24th, 2005, 9:09 pm
Location: Kitchener

Re: high rpms in 5th

Post by mx3autozam »

murda_9 wrote:i have a 93 mx3 v6 and my idle is good but when i drive my rpms are high like on the high way going 80- 100 kms my rpms are at 3 - 4000 it sounds like my engin will blow can any one help me find out what it is thank you maybe its suppose to rev that high but it dosent sound good
how does your engine sound like its going to blow? It should be perfgectly smooth and have plenty of power in the high revs!
93 Mazda MX3 KLZE Turbo
User avatar
fieromx3
Supporting Member
Posts: 2743
Joined: June 27th, 2005, 7:58 pm
Location: Guelph, ontario
Contact:

Re: high rpms in 5th

Post by fieromx3 »

cabriolet wrote:lol let see...I 've been doing this over a year now and I can prolly input into this ..stock K8...I gotta run about 20 minutes highway 4 times everyday (don't ask me why but I have to :? )

1st goes to 20km
2nd goes to 60km-80km (it will soar)
3rd goes to 80km-100ish ish then I just pop it into 4th or it will roar
4th is ok
5th I check constantly that its gotta be at 3800rpm or so to run at 120 km/hr
100km/hr I say 3500rpm also...but the power doesn't come in till 4000rpm but I say its pretty satisfying after that

its pretty rev hungry
I've got a pretty loud exhaust so it sucks or its good depends how you look at it
:roll: :roll: :roll:
murda_9 wrote:i have a 93 mx3 v6 and my idle is good but when i drive my rpms are high like on the high way going 80- 100 kms my rpms are at 3 - 4000 it sounds like my engin will blow can any one help me find out what it is thank you maybe its suppose to rev that high but it dosent sound good

what???

1st is 60
2nd 100
3rd 130
4th 170ish
5th 220
93' MX-3 GS-ZE
14.4 @ 96.7
14.5 @ 97.2
Post Reply

Return to “V6 Technical/Performance”