Tex’s Lotus Exige Cup 430

[dbo 9]

16 hours ago, Kristof Thys said:

The ECU won't know. There is nothing to worry about. 

Just to be complete, the ECU electronically controls a valve in the engine bay to allow the vacuum to flow from the engine to the exhaust actuator or not. If the vacuum is allowed, it will pull the butterfly closed on the straight through pipe entering the silencer, thus changing to 'quiet mode'. The butterfly is sprung in the pipe to be open by default, so removing the capability for the vacuum to reach the actuator means the exhaust remains in big bore/straight through mode regardless of what the ECU does with the valve. As for ECU knowing, there is no sensor on the vacuum portion of this control or actuator, and from a logical pov, why would it care as the (engineering) problem is if the exhaust is kept in quiet mode while under load, not opened. Id expect that the ECU can monitor the controls it sends to the electronic valve (in the engine bay) to ensure its functional.

[Tex 217]

I am aware that Komotec do a 500 bhp upgrade at a price in region of €25,000 but this i think this  is more suited cost wise to V6s and 350s  upgrades 

What would be possible for the 430 or even the 410 as while there is ample bhp for road , a little extra on track never hurt .

Haven’t seen any power upgrades for these models yet but would like to know what is available 

[Bravo73 1,300]

There is an EX460 kit offered by KT/H111 for the 4X0 series engines:

http://www.hangar111.com/shop/komo-tec-lotus-tuning/670-komo-tec-evora-400-phase-1-ev4-460.html

[MrP_ 303]

11 minutes ago, Tex said:

I am aware that Komotec do a 500 bhp upgrade at a price in region of €25,000 but this i think this  is more suited cost wise to V6s and 350s  upgrades 

What would be possible for the 430 or even the 410 as while there is ample bhp for road , a little extra on track never hurt .

Haven’t seen any power upgrades for these models yet but would like to know what is available 

I’d be more worried about a proper gearbox solution before changing engine internals. I thought the KT 500 went above the recommended torque levels

[Tex 217]

8 hours ago, Bravo73 said:

There is an EX460 kit offered by KT/H111 for the 4X0 series engines:

http://www.hangar111.com/shop/komo-tec-lotus-tuning/670-komo-tec-evora-400-phase-1-ev4-460.html

Yes I did notice this kit but hadn’t seen anything directly relating to the Exige

An additional 30bhp for the Cup 430 would be very welcome if it was achievable at a reasonable price point as i think brakes etc    are up to the extra power , less sure about gearbox though.

 

8 hours ago, MrP_ said:

I’d be more worried about a proper gearbox solution before changing engine internals. I thought the KT 500 went above the recommended torque levels

Yes and there I guess lies the biggest problem as the EX500 appears to have a sequential gearbox option  presumably a lot stronger than stock. The stock purchase from KT has uprated  forged pistons and con-rods but no gearbox mods that I can see and may well be above the standard  gearboxes torque tolerance. 

[Bravo73 1,300]

48 minutes ago, Tex said:

Yes I did notice this kit but hadn’t seen anything directly relating to the Exige

Same engine, same kits. 

[AlphaZ 8]

Hi,

 

 

 

[AlphaZ 8]

Mine was 424 ch and 480 NM stock and after upgrade was 459 ch and 520 NM

 

[550superfast 446]

13 hours ago, Tex said:

I am aware that Komotec do a 500 bhp upgrade at a price in region of €25,000 but this i think this  is more suited cost wise to V6s and 350s  upgrades 

What would be possible for the 430 or even the 410 as while there is ample bhp for road , a little extra on track never hurt .

Haven’t seen any power upgrades for these models yet but would like to know what is available 

The 3-11 upgrade would be suitable as far as I am aware, nice increase, but ok with standard engine internals and gearbox

https://komo-tec.com/Shop/en/Other-Lotus/3-Eleven/Power-Phases/Phase-Eleven-475-Upgrade-60hp-80Nm-3-Eleven.html

I'd also add the carbon air box and suitable bespoke mapping session.

[Tex 217]

10 hours ago, AlphaZ said:

Mine was 424 ch and 480 NM stock and after upgrade was 459 ch and 520 NM

 

Not sure this is available in Uk and obviously would prefer an installer here , but

looks like a very good increase though.

How does it feel In comparison to stock ? the issue I have is the lack of grunt at higher speed between 4,000 and 6,000 rpm particularly against much heavier but 500bhp + Cars

 

11 hours ago, Bravo73 said:

Same engine, same kits. 

Looks a reasonable option at the price. As mentioned here what I would like is extra shove in the mid range. Will look at having a chat with Hangar 111

7 hours ago, 550superfast said:

The 3-11 upgrade would be suitable as far as I am aware, nice increase, but ok with standard engine internals and gearbox

https://komo-tec.com/Shop/en/Other-Lotus/3-Eleven/Power-Phases/Phase-Eleven-475-Upgrade-60hp-80Nm-3-Eleven.html

I'd also add the carbon air box and suitable bespoke mapping session.

Looks very suitable and at a reasonable cost . Do you know anyone that has had this installed?

[Seriouslylotus 445]

13 minutes ago, Tex said:

Looks very suitable and at a reasonable cost . Do you know anyone that has had this installed?

Gary knows someone who might have it installed sometime soon

[Hangar 111 302]

Solutions for Exige 4x0 are being worked on with regards to the ECU. Feel free to drop me a line (am away racing weekend at present).

Dave

[Tex 217]

30 minutes ago, Seriouslylotus said:

Gary knows someone who might have it installed sometime soon

Would be interested in the outcome once he does

4 minutes ago, Hangar 111 said:

Solutions for Exige 4x0 are being worked on with regards to the ECU. Feel free to drop me a line (am away racing weekend at present).

Dave

Good to know ,

[550superfast 446]

18 hours ago, Tex said:

Not sure this is available in Uk and obviously would prefer an installer here , but

looks like a very good increase though.

How does it feel In comparison to stock ? the issue I have is the lack of grunt at higher speed between 4,000 and 6,000 rpm particularly against much heavier but 500bhp + Cars

 

Looks a reasonable option at the price. As mentioned here what I would like is extra shove in the mid range. Will look at having a chat with Hangar 111

Looks very suitable and at a reasonable cost . Do you know anyone that has had this installed?

There is a 3-11 on here with it, also seen a few a Spa going around (matt black one from memory)

 

[Tex 217]

10 hours ago, 550superfast said:

There is a 3-11 on here with it, also seen a few a Spa going around (matt black one from memory)

 

Dave from Hangar 111 has mentioned they are working on the ECU upgrade for the 430 which will be required I guess before any mods can be implemented.

Would be good to see just how quick a 430 can be and perhaps silence the EX460 v Cup 430 debate 

 

 

[mark248am 343]

What options do I have as a 380 owner? are they the same options as the 350?

[Hangar 111 302]

35 minutes ago, mark248am said:

What options do I have as a 380 owner? are they the same options as the 350?

Basically, yes. EX390 would give you around 400-410, then EX430 and EX460 are same as 350-based cars.

Would recommend the chargecooler solution of you can afford it, given your ambient temperatures.

Dave

8 hours ago, Tex said:

Dave from Hangar 111 has mentioned they are working on the ECU upgrade for the 430 which will be required I guess before any mods can be implemented.

Would be good to see just how quick a 430 can be and perhaps silence the EX460 v Cup 430 debate 

 

 

Yes we have a couple of options for this, the standard ECU with a KT map, or fully featured aftermarket ECU with bespoke mapping.

Once I am back from race weekend, I will chase up on progress with the 4x0 ECUs, but feel free to give me a prod!

Dave

[Hangar 111 302]

Some independent opinion here from David Pittard: 

Got another 3-11 coming in for this upgrade in a couple of weeks.

Dave

Edited October 21, 2018 by Hangar 111

[Andy Norman 76]

Just went to take the roof off. I don’t have the tool to get the 4 remaining roof bolts out. It’s a star design like the front window valance but with a small circular protrusion cylinder in the middle. Annoying!! Anyone know where or what this attachment is called so I can buy it?

[C8RKH 6,262]

Is it not one of the security torx bolts?

[Andy Norman 76]

1 minute ago, C8RKH said:

Is it not one of the security torx bolts?

Yes

just B&Q job?

On 16/10/2018 at 23:10, dbo said:

If you dont mind the exhaust always open, you can pull the tube between the supercharger and the small pressure canister (or pressure canister to ECU controlled valve), and plug it. I have seen another post which places a (fish tank) 1 way lever valve in this line which gives the option of manually enabling/disabling if thats more appropriate for you.

 

This tube?

[C8RKH 6,262]

19 minutes ago, Andy Norman said:

Yes

just B&Q job?

Probably or quicker and easier to just order on Amazon and get delivered - I'd probably say Halfords more than B&Q on second thoughts

https://www.amazon.co.uk/HOEN-Wrench-Tamper-Screwdriver-L-Shape/dp/B07BFVWBV5/ref=sr_1_1?ie=UTF8&qid=1540137453&sr=8-1&keywords=torx+secure

[MrP_ 303]

4 hours ago, C8RKH said:

Probably or quicker and easier to just order on Amazon and get delivered - I'd probably say Halfords more than B&Q on second thoughts

https://www.amazon.co.uk/HOEN-Wrench-Tamper-Screwdriver-L-Shape/dp/B07BFVWBV5/ref=sr_1_1?ie=UTF8&qid=1540137453&sr=8-1&keywords=torx+secure

Not those ones, they only go up to t27. You need a t40.

This set would work https://www.amazon.co.uk/Yakamoz-T5-T40-Magnetic-Security-Driver/dp/B073ZVJ56Z/ref=sr_1_7?ie=UTF8&qid=1540152230&sr=8-7&keywords=Security+torx

But any with a T40 security torx but will be fine

[550superfast 446]

On 21/10/2018 at 00:57, Tex said:

Dave from Hangar 111 has mentioned they are working on the ECU upgrade for the 430 which will be required I guess before any mods can be implemented.

Would be good to see just how quick a 430 can be and perhaps silence the EX460 v Cup 430 debate 

 

 

19th November at Silverstone. 

You should get an opportunity there. 

[mark248am 343]

16 hours ago, Andy Norman said:

Just went to take the roof off. I don’t have the tool to get the 4 remaining roof bolts out. It’s a star design like the front window valance but with a small circular protrusion cylinder in the middle. Annoying!! Anyone know where or what this attachment is called so I can buy it?

so bizarre! there was another thread where we were discussing how Lotus stopped using those bolts and started using regular torx bolts. I guess they must have run out of these bolts for awhile and started using normal ones until they got new stock...