C-ONE/ KAZ - 6-Speed Gear Set - Top Speed - LotusTalk

simon_komo · 03-31-2009, 12:51 AM

Hi guys

I have just fitted the 6 speed gear set to my car, mid gear acceleration is awesome, lot quicker and car stays in powerband longer

Quick question, any one know the top speed of this gear set with the standard 4.55 final gear ?? I can't test this on public roads.

On Transmission Gear Ratio Calculator, I got 237 km/h for C-One gear set with 4.55 and 283 km/h for standard gear set with 4.8 final gear. This is based on theoretical calculation. Pretty sure we cannot get 280 + top speed in a 260+hp lotus

Any feedback will be appreciated so I won't get disappointed on track

SIMON

mjf · 03-31-2009, 01:14 AM

I haven't tried it.

But I recall reading here someone reaching 170mph+ (270km/h) with additional power and gears. So it sounds possible. Still run into aero issues though so it wasn't be quick getting there. With some guess work you might find the story I recall using search.

HKFEVER · 03-31-2009, 02:41 AM

Quote:

Originally Posted by simon_komo

Hi guys

I have just fitted the 6 speed gear set to my car, mid gear acceleration is awesome, lot quicker and car stays in powerband longer

SIMON

Hi, you are back on the ground

dleogml · 03-31-2009, 02:51 AM

My car is elise R (192hp)
I have c-one final gear(4.8) only.

I could reach 240km/h before I changed but I can't reach that speed.
Because stock 5th gear 8500rpm is 240km/h and c-one(only final) 5th gear 8500rpm is 225km/h. I can reach 225km/h much earlier but 6th gear cannot accellerate lacking of power.

After changing final gear I just only 235km/h at downhill.

simon_komo · 03-31-2009, 06:10 AM

Thanks Dleogml, actually I had the C-one 4.8 final gear fitted. I think it was a very good upgrade for street driving. Had the C-one 6 gear set fitted, mid gear acceleration is very good but highway crusing is kinda of compromise as the engine is running on a higher rev. I cannot test on public roads but do feel the new gearset will have a lower top speed than the larger final gear. Want to know the actual !

CUP_240 · 07-12-2009, 06:56 PM

Please keep us updated, im sure there is a few guys on here who would love to hear your outcome ...

Do you think the ratios are too short for your 280kit ?

I looked at this option and thought for 280hp+ it would make the car very busy to drive on track.

simon_komo · 07-20-2009, 09:06 PM

Hi cup 240

i have yet to try the top speed but on street driving, in gear acceleration is very good, the car feels alot more in the powerband and feels much torqier. You will change gear more frequently than 4.8 with standard gears but it doesnt bother me.
I think this is a good mod, 2 other Exige S in HK has this upgrade as well as a 2-11 for track. From my mechanics comment, top speed is around 240km/h

Simon

MikeVR4 · 07-21-2009, 12:24 AM

Quote:

Originally Posted by simon_komo

Hi guys

I have just fitted the 6 speed gear set to my car, mid gear acceleration is awesome, lot quicker and car stays in powerband longer
SIMON

Did you fit this gearset yourself? If so, please share your instructions, recommendations, and other wisdom!

Can you tell me what other parts you needed to fit this, other than the Kaaz gearset? In older threads, I've asked, but the owners weren't sure. Something about a Toyota Celica synchro or another part, etc...?

MikeVR4

CUP_240 · 07-21-2009, 01:58 AM

So just to recap ...

You have the following right ? gearset and 4.8 final drive ?

Gear Sets - Monkeywrench Racing - Celica - MR2 Spyder - Corolla - Lotus Performance Solutions

Thanks for your advice, its clearing up a few questions i had ;-)

CUP_240 · 07-21-2009, 01:59 AM

Ive been told by a few people that the Kaaz gearset is no stronger than oem ?

Do you have any info on this ?

dmh · 07-21-2009, 05:01 AM

Quote:

Originally Posted by CUP_240

Ive been told by a few people that the Kaaz gearset is no stronger than oem ?

Do you have any info on this ?

Who are the "few" people and what is their knowledge based on? (This is why in research quoting from the internet is unacceptable.)

We have fitted a dozen or so of the Kaaz gear kits and have had no issues to date. From my conversations with a Kaaz USA, Kaaz build the gears to hold up to around 210 foot ponds of torque. Above that and you are on your own.

simon_komo · 07-25-2009, 12:40 AM

I can confirm the gears from the gearset is a lot strong than OEM, the only weaklink is the original final end gear. Pity no one makes a 4.55 stronger end gear

choi0706 · 07-25-2009, 12:54 AM

210 i snot much more then OEM..

dmh · 07-25-2009, 04:52 AM

Quote:

Originally Posted by choi0706

210 i snot much more then OEM..

133 stock to 210+. Are you using that Texas, GWB fuzzy math?

http://www.mmsport.com.au/download.php?fid=34

Simba · 07-25-2009, 03:04 PM

The OEM gears in most all Toyota boxes are known for taking quite a lot more than stock torque with few complaints, except in relatively rare cases. If a company is putting a 210 ft. lb. spec limit on their gears, personally, I wouldn't use 'em.

dmh · 07-25-2009, 03:53 PM

Quote:

Originally Posted by Simba

The OEM gears in most all Toyota boxes are known for taking quite a lot more than stock torque with few complaints, except in relatively rare cases. If a company is putting a 210 ft. lb. spec limit on their gears, personally, I wouldn't use 'em.

You just made quite a leap there, didn't you? I did not write a 210 hard limit. How many road race cars do you know using the C60/4 gear box that makes more than 210 foot pounds of torque?

I'll note to Kaaz you personal choice of not using them. But I am not sure why you would comment or even use shorter gears. Do you use shorter gears from another company? Do you road race?

Simba · 07-25-2009, 07:18 PM

Quote:

Originally Posted by dmh

You just made quite a leap there, didn't you? I did not write a 210 hard limit.

It's a bit of a leap, perhaps, but if they're slapping a "do not exceed" limit on the gearset, I would have to imagine it's based on some relatively high percentage of the tested failure torque.

Quote:

How many road race cars do you know using the C60/4 gear box that makes more than 210 foot pounds of torque?

Well, mine does.

dmh · 07-26-2009, 04:05 AM

Quote:

Originally Posted by Simba

It's a bit of a leap, perhaps, but if they're slapping a "do not exceed" limit on the gearset, I would have to imagine it's based on some relatively high percentage of the tested failure torque.

Well, mine does.

I highly doubt testing for failures. More likely it's the relatively small size of the gears and materials used that are the issue. And factor in cost.

If you are making more than 210 foot pounds of torque shorter gears of this design are probably not what you are searching for. This setup is probably too short. What sanctioning body and class do you run with?

03-31-2009, 12:51 AM	#1 (permalink)
simon_komo Registered User Join Date: Aug 2007 Posts: 108	C-ONE/ KAZ - 6-Speed Gear Set - Top Speed Hi guys I have just fitted the 6 speed gear set to my car, mid gear acceleration is awesome, lot quicker and car stays in powerband longer Quick question, any one know the top speed of this gear set with the standard 4.55 final gear ?? I can't test this on public roads. On Transmission Gear Ratio Calculator, I got 237 km/h for C-One gear set with 4.55 and 283 km/h for standard gear set with 4.8 final gear. This is based on theoretical calculation. Pretty sure we cannot get 280 + top speed in a 260+hp lotus Any feedback will be appreciated so I won't get disappointed on track SIMON __________________ Krypton Green Exige with Komo-tec 280S Photo Gallery : http://s229.photobucket.com/albums/e...omo/?start=all Modification List : http://s229.photobucket.com/albums/e...SIMONLAU-1.jpg

03-31-2009, 01:14 AM	#2 (permalink)
mjf elf Join Date: Nov 2007 Location: Bellevue, WA Posts: 1,338	I haven't tried it. But I recall reading here someone reaching 170mph+ (270km/h) with additional power and gears. So it sounds possible. Still run into aero issues though so it wasn't be quick getting there. With some guess work you might find the story I recall using search. __________________ 2007 Elise Type 72D #6 of 50

03-31-2009, 02:51 AM	#4 (permalink)
dleogml Registered User Join Date: Oct 2007 Posts: 60	I have c-one final gear My car is elise R (192hp) I have c-one final gear(4.8) only. I could reach 240km/h before I changed but I can't reach that speed. Because stock 5th gear 8500rpm is 240km/h and c-one(only final) 5th gear 8500rpm is 225km/h. I can reach 225km/h much earlier but 6th gear cannot accellerate lacking of power. After changing final gear I just only 235km/h at downhill. __________________ 2007 Elise / Laser Blue / Toybox48 wheel / Larini Sports Exhaust / Larini Sports Cat / Ohlins 2-way Suspension / liquidcaddy cupholder / Stock harness bar / 4 point seat belt / white double line stripe / 3.3kg Fire Extinguisher / Engine Room LED Light / Engine Hood grill modification / V-Shield(like Starshield)/C-One Final Drive(4.529->4.8)/ACT XTSS clutch Kit/Fidanza Aluminum Flywheel(7.5lbs)

03-31-2009, 06:10 AM	#5 (permalink)
simon_komo Registered User Join Date: Aug 2007 Posts: 108	Thanks Dleogml, actually I had the C-one 4.8 final gear fitted. I think it was a very good upgrade for street driving. Had the C-one 6 gear set fitted, mid gear acceleration is very good but highway crusing is kinda of compromise as the engine is running on a higher rev. I cannot test on public roads but do feel the new gearset will have a lower top speed than the larger final gear. Want to know the actual ! __________________ Krypton Green Exige with Komo-tec 280S Photo Gallery : http://s229.photobucket.com/albums/e...omo/?start=all Modification List : http://s229.photobucket.com/albums/e...SIMONLAU-1.jpg

07-20-2009, 09:06 PM	#7 (permalink)
simon_komo Registered User Join Date: Aug 2007 Posts: 108	Hi cup 240 i have yet to try the top speed but on street driving, in gear acceleration is very good, the car feels alot more in the powerband and feels much torqier. You will change gear more frequently than 4.8 with standard gears but it doesnt bother me. I think this is a good mod, 2 other Exige S in HK has this upgrade as well as a 2-11 for track. From my mechanics comment, top speed is around 240km/h Simon __________________ Krypton Green Exige with Komo-tec 280S Photo Gallery : http://s229.photobucket.com/albums/e...omo/?start=all Modification List : http://s229.photobucket.com/albums/e...SIMONLAU-1.jpg

07-12-2009, 06:56 PM	#6 (permalink)
CUP_240 08 Exige S 240 Join Date: Jun 2008 Location: Australia Posts: 67	Please keep us updated, im sure there is a few guys on here who would love to hear your outcome ... Do you think the ratios are too short for your 280kit ? I looked at this option and thought for 280hp+ it would make the car very busy to drive on track.

07-21-2009, 01:58 AM	#9 (permalink)
CUP_240 08 Exige S 240 Join Date: Jun 2008 Location: Australia Posts: 67	So just to recap ... You have the following right ? gearset and 4.8 final drive ? Gear Sets - Monkeywrench Racing - Celica - MR2 Spyder - Corolla - Lotus Performance Solutions Thanks for your advice, its clearing up a few questions i had ;-)

07-21-2009, 01:59 AM	#10 (permalink)
CUP_240 08 Exige S 240 Join Date: Jun 2008 Location: Australia Posts: 67	Ive been told by a few people that the Kaaz gearset is no stronger than oem ? Do you have any info on this ?

07-25-2009, 12:40 AM	#12 (permalink)
simon_komo Registered User Join Date: Aug 2007 Posts: 108	I can confirm the gears from the gearset is a lot strong than OEM, the only weaklink is the original final end gear. Pity no one makes a 4.55 stronger end gear __________________ Krypton Green Exige with Komo-tec 280S Photo Gallery : http://s229.photobucket.com/albums/e...omo/?start=all Modification List : http://s229.photobucket.com/albums/e...SIMONLAU-1.jpg

07-25-2009, 12:54 AM	#13 (permalink)
choi0706 Registered User Join Date: Sep 2004 Location: Houston/Austin Posts: 4,224	210 i snot much more then OEM.. __________________ Jay-05' ST, HT, Touring Red Rally Ready

07-25-2009, 03:04 PM	#15 (permalink)
Simba 2/3 hp to the paws. Join Date: Jan 2008 Location: NY Posts: 497	The OEM gears in most all Toyota boxes are known for taking quite a lot more than stock torque with few complaints, except in relatively rare cases. If a company is putting a 210 ft. lb. spec limit on their gears, personally, I wouldn't use 'em.

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