2zz engine/transaxle/supercharged k20 swap - Page 6 - LotusTalk

beat · 07-31-2007, 07:16 PM

Do you have detailed pics of the mounting kit? How much would it cost? Any problem with the drive shaft tilted at an angle? It is a problem with the rover engine Lotus swapping to K20 due to the subframe pushing the engine forwards therefore tilting the driveshafts....

exigeme · 08-01-2007, 08:21 AM

Beat, my conversion is a series two car that had a Toyota engine not a Rover. Drive-line angles look very good and after fitment of the supercharger is completed I will be making engine mounts. The engine and trans-axle have been in and out of the car countless times looking for the best position while going through this process.

beat · 08-01-2007, 08:24 AM

I have an S2 Exige with yota engine. If there is a mounting kit for the K20, I will be very interested...

Everything is fabricated?? Drive shafts, engine mounts, tranny mounts, etc....
What is needed for the swap?

exigeme · 08-01-2007, 08:39 AM

At this point nothing is fabricated, if you are looking for a k20 conversion kit
do a search and you will find others that offer such a kit. I do plan to fabricate most of my parts but will leave the drive-lines and exhaust to others that have a reputation of building the best.

exigeme · 08-03-2007, 04:37 PM

Not that its been holding up my progress but after waiting for two months it is always
nice to have in hand things you have spent good money for. Amazing to see that the
complete assembly, clutches and flywheel weigh around 13 lbs. Well engineered and
very nicely made and rated to hold 840ft/lb of torque it will more than well hold for my
application. It was expensive but due to the positive characteristics and excellent wear
rate I should be able to use it for years without having to pull the transaxle.
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elptex · 08-03-2007, 05:22 PM

Mmm, those parts are so sexy! (Forgive me, I'm a mechanical engineer)

jim-clayton · 08-03-2007, 05:26 PM

Wow. I hope I'm reincarnated with a better paying job.
Your parts and pieces peg my money meter.

That clutch set-up should be on "pay for view" .

Detailmaster · 08-03-2007, 09:17 PM

Try to get the K20a Type R

MikeW · 08-03-2007, 11:32 PM

Dan, you have such good taste! Nice choice. My friend has a single disc Tilton carbon/carbon setup on a formula car. Certainly much friendlier to modulate that an all metal. You could even drive up on the trailer with it. Better check all the Tilton fasteners. We pulled the engine and found all the fasteners holding the pressure plate together were ready to fall completely out. It's red Loctited to death now. Can trust anybody. Just got a bad one I guess. I found buying this stuff is a great way to get the limit on your credit card raised.

exigeme · 08-03-2007, 11:44 PM

Thanks Mike, I am happy about my choice so much so that I have gotten nothing done today but look at my clutch and new shocks. Building the supercharger transition is turning out to be a real pain in the ass and zapping my motivation. I will make sure I check the bolts, thanks for the heads up.

holmz · 08-04-2007, 04:02 PM

Quote:

Originally Posted by elptex

Mmm, those parts are so sexy! (Forgive me, I'm a mechanical engineer)

elptex - You know what engineers use for birth control?

elptex · 08-04-2007, 10:09 PM

Quote:

Originally Posted by holmz

elptex - You know what engineers use for birth control?

Yea, yea, thanks, you're a real gem, too :-p

(Answer: Their personalities)

exigeme · 08-05-2007, 08:57 PM

Because you can't buy these things I had to make one on my own. It is quite
involved, first you have to machine a flange and then build your desired
shape piece by piece on to the flange. Lots of cutting and welding and grinding.
If you are fortunate enough to have a CNC mill you could machine one but I do not
so it was done the old fashioned way. Don't laugh, it took me many many hours....

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MaineLotus · 08-06-2007, 04:08 AM

Nicely done, impressive!

MikeW · 08-06-2007, 09:34 AM

Dan
That kind of stuff is very time consuming. Only other practical way is to sculpt some kind of form in the shape you want and start laying up carbon or fiberglass over it. I did some brake ducts that wound their way between the upper and lower control arms. I used carbon and epoxy resin. Then you can form any curves you want. You don't feel as restrained. There's a lot of hit/miss the first time though. You may want to have someone guide you through the basics some time. It another option. Options are always nice. Overall not a bad job, Keep going,

codymac · 08-07-2007, 08:44 PM

Quote:

Originally Posted by exigeme

Not that its been holding up my progress but after waiting for two months it is always
nice to have in hand things you have spent good money for. Amazing to see that the
complete assembly, clutches and flywheel weigh around 13 lbs. Well engineered and
very nicely made and rated to hold 840ft/lb of torque it will more than well hold for my
application. It was expensive but due to the positive characteristics and excellent wear
rate I should be able to use it for years without having to pull the transaxle.

Curious about the clutch. Have you worked out:
- master cylinder?
- release bearing (slave & fork or hydraulic)?
- positive clutch stop to prevent overstroking?

exigeme · 08-07-2007, 10:17 PM

I did buy a master cylinder and a matched hydraulic through out bearing and plan to measure the movement using both the Lotus master cylinder and the new master cylinder. If I set it up correctly I should not need a stop.

exigeme · 08-10-2007, 04:15 PM

Had a setback yesterday while looking over the dry sump setup, feeling like an idiot for not noticing it earlier but at the present time the pump is mounted where the half shaft carrier bearing is located. I spent most of the evening yesterday looking for alternate locations where the pump can be mounted while keeping the AC intact and came up empty. I notified ADR engineering in the UK, the company I purchased the setup through and they are having a engine with ancillaries brought in to work with me on finding a solution. I am confident together we will find an alternate location and in the end have a better product. I really was not expecting them to jump in and help but rather just expected them to offer me a refund and knowing me, would just have come up with a solution on my own. Everything I have done so far revolves around the engine location in the chassis so this is of much concern to me. I guess it just gives me more to do as if I did not have enough already.

Bleu Omdurman · 08-11-2007, 04:08 PM

Dude, I walk away from the thread for 2 weeks and look what happens!!

This is awesome. I need to swing by sometime and drool in your garage.

Nice work man!

Bleu

exigeme · 08-15-2007, 05:20 PM

No drooling going on at this time, spending time in the garage has been a downer lately. I am spending all kinds of time making modifications to stuff I had already partially built. At the moment when I get sick of working the intake I have been looking for a larger drive by wire throttle body that will work with an aftermarket engine management system. I have also been trying to come up with a way to keep the AC and use the dry sump system I
bought. Unfortunately either the AC goes or a completely new pan has to be built to use the dry sump. Nobody I can find makes one that can be store bought and keep the AC for a transverse application. If anyone knows differently PLEASE let me know.

07-31-2007, 07:16 PM	#101 (permalink)
beat Registered User Join Date: Sep 2006 Location: Hong Kong Posts: 204	Do you have detailed pics of the mounting kit? How much would it cost? Any problem with the drive shaft tilted at an angle? It is a problem with the rover engine Lotus swapping to K20 due to the subframe pushing the engine forwards therefore tilting the driveshafts.... __________________ Play only when you can afford to lose. The truth aint for the weak.

08-01-2007, 08:24 AM	#103 (permalink)
beat Registered User Join Date: Sep 2006 Location: Hong Kong Posts: 204	I have an S2 Exige with yota engine. If there is a mounting kit for the K20, I will be very interested... Everything is fabricated?? Drive shafts, engine mounts, tranny mounts, etc.... What is needed for the swap? __________________ Play only when you can afford to lose. The truth aint for the weak.

08-03-2007, 04:37 PM	#105 (permalink)
exigeme Registered User Join Date: May 2006 Location: Lake Tapps Posts: 141	Carbon/ Carbon twin disk clutch Not that its been holding up my progress but after waiting for two months it is always nice to have in hand things you have spent good money for. Amazing to see that the complete assembly, clutches and flywheel weigh around 13 lbs. Well engineered and very nicely made and rated to hold 840ft/lb of torque it will more than well hold for my application. It was expensive but due to the positive characteristics and excellent wear rate I should be able to use it for years without having to pull the transaxle. Last edited by exigeme : 08-03-2007 at 05:51 PM.

08-03-2007, 05:26 PM	#107 (permalink)
jim-clayton Registered User Join Date: Jul 2004 Location: Fort Lauderdale Florida Posts: 1,634	Wow. I hope I'm reincarnated with a better paying job. Your parts and pieces peg my money meter. That clutch set-up should be on "pay for view" . __________________ 2005 Elise Storm Titanium

08-03-2007, 09:17 PM	#108 (permalink)
Detailmaster Registered User Join Date: Aug 2007 Location: Beverly Hills Posts: 2	Try to get the K20a Type R __________________ Detailmaster 60 step detail. Hands down the best detail ever. By appointment only.

08-01-2007, 08:21 AM	#102 (permalink)
exigeme Registered User Join Date: May 2006 Location: Lake Tapps Posts: 141	Beat, my conversion is a series two car that had a Toyota engine not a Rover. Drive-line angles look very good and after fitment of the supercharger is completed I will be making engine mounts. The engine and trans-axle have been in and out of the car countless times looking for the best position while going through this process.

08-01-2007, 08:39 AM	#104 (permalink)
exigeme Registered User Join Date: May 2006 Location: Lake Tapps Posts: 141	At this point nothing is fabricated, if you are looking for a k20 conversion kit do a search and you will find others that offer such a kit. I do plan to fabricate most of my parts but will leave the drive-lines and exhaust to others that have a reputation of building the best.

08-03-2007, 05:22 PM	#106 (permalink)
elptex youngin' in lust Join Date: Jan 2007 Location: San Antonio Posts: 236	Mmm, those parts are so sexy! (Forgive me, I'm a mechanical engineer)

08-03-2007, 11:32 PM	#109 (permalink)
MikeW Registered User Join Date: Feb 2006 Posts: 1,372	Dan, you have such good taste! Nice choice. My friend has a single disc Tilton carbon/carbon setup on a formula car. Certainly much friendlier to modulate that an all metal. You could even drive up on the trailer with it. Better check all the Tilton fasteners. We pulled the engine and found all the fasteners holding the pressure plate together were ready to fall completely out. It's red Loctited to death now. Can trust anybody. Just got a bad one I guess. I found buying this stuff is a great way to get the limit on your credit card raised.

08-03-2007, 11:44 PM	#110 (permalink)
exigeme Registered User Join Date: May 2006 Location: Lake Tapps Posts: 141	Thanks Mike, I am happy about my choice so much so that I have gotten nothing done today but look at my clutch and new shocks. Building the supercharger transition is turning out to be a real pain in the ass and zapping my motivation. I will make sure I check the bolts, thanks for the heads up.

08-05-2007, 08:57 PM	#113 (permalink)
exigeme Registered User Join Date: May 2006 Location: Lake Tapps Posts: 141	Supercharger transition Because you can't buy these things I had to make one on my own. It is quite involved, first you have to machine a flange and then build your desired shape piece by piece on to the flange. Lots of cutting and welding and grinding. If you are fortunate enough to have a CNC mill you could machine one but I do not so it was done the old fashioned way. Don't laugh, it took me many many hours....

08-06-2007, 04:08 AM	#114 (permalink)
MaineLotus Parts scattered about... Join Date: Feb 2005 Location: Maine Posts: 1,384	Nicely done, impressive! __________________ My car is modified.

08-06-2007, 09:34 AM	#115 (permalink)
MikeW Registered User Join Date: Feb 2006 Posts: 1,372	Dan That kind of stuff is very time consuming. Only other practical way is to sculpt some kind of form in the shape you want and start laying up carbon or fiberglass over it. I did some brake ducts that wound their way between the upper and lower control arms. I used carbon and epoxy resin. Then you can form any curves you want. You don't feel as restrained. There's a lot of hit/miss the first time though. You may want to have someone guide you through the basics some time. It another option. Options are always nice. Overall not a bad job, Keep going,

08-07-2007, 10:17 PM	#117 (permalink)
exigeme Registered User Join Date: May 2006 Location: Lake Tapps Posts: 141	I did buy a master cylinder and a matched hydraulic through out bearing and plan to measure the movement using both the Lotus master cylinder and the new master cylinder. If I set it up correctly I should not need a stop.

08-10-2007, 04:15 PM	#118 (permalink)
exigeme Registered User Join Date: May 2006 Location: Lake Tapps Posts: 141	Had a setback yesterday while looking over the dry sump setup, feeling like an idiot for not noticing it earlier but at the present time the pump is mounted where the half shaft carrier bearing is located. I spent most of the evening yesterday looking for alternate locations where the pump can be mounted while keeping the AC intact and came up empty. I notified ADR engineering in the UK, the company I purchased the setup through and they are having a engine with ancillaries brought in to work with me on finding a solution. I am confident together we will find an alternate location and in the end have a better product. I really was not expecting them to jump in and help but rather just expected them to offer me a refund and knowing me, would just have come up with a solution on my own. Everything I have done so far revolves around the engine location in the chassis so this is of much concern to me. I guess it just gives me more to do as if I did not have enough already.

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08-11-2007, 04:08 PM	#119 (permalink)
Bleu Omdurman More track time please. Join Date: Aug 2005 Location: Seattle Posts: 1,692	Dude, I walk away from the thread for 2 weeks and look what happens!! This is awesome. I need to swing by sometime and drool in your garage. Nice work man! Bleu __________________ Take my track day survey: here You should enjoy it. 10 questions. Now take survey #2 here Mods: TurboXS Intake, Ultra Disc Rotors, Adare Motorsports Racing Pads.

08-15-2007, 05:20 PM	#120 (permalink)
exigeme Registered User Join Date: May 2006 Location: Lake Tapps Posts: 141	No drooling going on at this time, spending time in the garage has been a downer lately. I am spending all kinds of time making modifications to stuff I had already partially built. At the moment when I get sick of working the intake I have been looking for a larger drive by wire throttle body that will work with an aftermarket engine management system. I have also been trying to come up with a way to keep the AC and use the dry sump system I bought. Unfortunately either the AC goes or a completely new pan has to be built to use the dry sump. Nobody I can find makes one that can be store bought and keep the AC for a transverse application. If anyone knows differently PLEASE let me know.