power upgrades

[62dave]

31 minutes ago, C8RKH said:

I'm curious why KomoTec dropped it.

Me too. I’ve emailed Greg for some info 

[GazzyFizzle]

9 hours ago, 62dave said:

Me too. I’ve emailed Greg for some info 

If you get any info, can you update the thread?

[Team Lotus]

anyone tracking their 460+ hp exige with stock internals? any issues so far?

[Suto]

Untill now no problems with the EX460 kit on stock internals. Did about 5 trackdays last year. Car has about 50.000 km.

[Bravo73]

On 24/02/2020 at 21:24, Mark030358 said:

Some People believe it gives issues... 

Including, ISTR, the Lotus Warranty claims department/person. 

[Team Lotus]

Hello Everyone,  

small update on my car, I ended up choosing a Harrop TVS1900 non-cooled kit, mainly because there is no independent shop that specialize Lotus here and non-cooled kit is very easy to install. Just drove the car back from the shop and quite like the new found noise coming from the air intake. haven't really push the car but can tell immediately there is a lot more torque. Taiwan is known to have very hot and humid summer so decided to install aquamist water/methanol injection; shop pre tap a hole on the compressor for the nozzle and since ecu will not make any compensation to the cooler air (no IAT sensor after compressor) I will first try the smallest nozzle available from Aquamist(80cc/min). will update again after aquamist is in place.

Thanks the guys at SSC, their quick replies made the whole experience silky smooth.

Edited April 17, 2020 by Team Lotus

[Kristof Thys]

Due to its simplicity maybe one day in a future lock down event a nice project for Lotus Development Center Belgium 😀😀😀

 

@dixie v6 what do you think? 🤔

 @Team Lotus congratulations!  Looking forward to your experience with the TVS1900 and the Aquamist system.  So you inject the ethanol pre blower, correct?  How do you avoid running lean because the ECU won't know IAT are going down and won't compensate for a more "oxygen rich mixture"?  (sorry for these noob questions, have no experience whatsoever with ethanol injection).  Thanks for pioneering!

 

 

[Team Lotus]

Hello @Kristof Thys, inject pre blower and water only won't change air/fuel ratio. to get the most out of water/methanol injection you need to get the car tuned; i'm adding it not to increase power but just to prevent engine knock during summer track days. all info came from searching on google and asking around so if something doesn't sound right, please let me know. thanks!

red circle shows where the nozzle will be installed.

Edited April 17, 2020 by Team Lotus

[Kristof Thys]

sounds good to me; knock is picked up by the knock sensors, so your solution will work!

[Team Lotus]

Hello Guys, after getting some parts fixed I finally got the water injection kit installed last week. car is running on a Aquamist HSF3 kit with 0.4C 150ml/m nozzle.

car is not tune with water injection, rather its just there to add a bit of safety against detonation during hot days in Taiwan. So I was expecting some lost of power when it kicks in but surprisingly I don't feel any power lost when its running (butt dyno lol). feel free to ask me aquamist settings if you guys decide to get one. cheers 

[Kristof Thys]

That is awesome! Must get me one too! 🙂 Thanks for sharing @Team Lotus

[cweeden]

What is triggering the injection, is it modulated and how big is your water tank? Looks like you'll burn through 1 Litre of water in 6 minutes. 💦

I had an Aquamist system on a previous V8 Esprit which if I remember correctly kicked in above certain IATs and matched the fuel injection duty cycle to control the amount of water injected. I have to confess I didn't apply much science to the setup and was probably lucky not to inject too much and do some damage.  😯

Good luck it should help a lot if you get it right. 

cheers

-Chris

[Team Lotus]

@cweeden its trigger by fuel injection duty cycle signal. Good thing on Aquamist kit is that it doesn't just turns on and off, spray is controlled by a fast acting valve that ramp up spray from trigger point to max.

 kit does not come with water tank, so just I just bought one from "SNOW", tank is only 2.84L but it doesn't use much water on a 1.5 hrs mountain road drive. it still had 3/4 of water when i got home. Reckon it'll gobble up much faster on track.

I was afraid to put too much water so i first tried 80ml/m nozzle but ended up using 150ml/m, didn't try more flow cuz that's the biggest one i've ordered.

Edited July 29, 2020 by Team Lotus

[Martrack]

On 25/02/2020 at 22:45, C8RKH said:

I'm curious why KomoTec dropped it.

Some check engine light issue on a few cars (2 as far as I remember) they mounted the AUTO-BLiP on.
As here : https://www.thelotusforums.com/forums/topic/92191-exige-380-ecu-remap/?do=findComment&comment=840962
So they decided to drop it from their store.