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V8 INTERCOOLING PROJECT - Induction/Turbo/Manifold/Exhaust - The Lotus Forums Jump to content
MrDangerUS

V8 INTERCOOLING PROJECT

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We need to assess the performance of this kit.

The best way would be to find the owner of this car...   It could be someone from this Forum. 

Do you recognize the license plate number?

Pro Alloy twin charge cooler Lotus Esprit V8_3.jpg

Edited by MrDangerUS

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Beautiful solution but even if the kit isn't prohibitive having to upgrade the gearbox and engine internals will be!


Vanya Stanisavljevic '91 Esprit SE | '91 Elan SE | '97 XK8

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Lotus was notorious for using  undersized fast spooling turbos. Aggressive in the lower and mid range but dull at the top end.

At the higher rpm, the turbocharger slips out of the highest efficiency island into the lower efficiency area of the map generating an excessive heat. Air density drops,

so is the volumetric efficiency as well as the engine output.  Aggressive cooling of the air charge mitigates the loss of power.

TO4B V-1,V-2.jpg

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I would be interested, If the prize is reasonable.


"Older I get, faster I was"

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It's my car in the photos and I'd be happy to discuss any of the changes I've made as well as the charge coolers....

The points made by Mike Sekinger and MrDangerUS above say it all... but I'll ramble on for a bit anyway and repeat things.....

These charge coolers were expensive, I was buying a custom built 'one off'. I didn't want long pipe runs which would increase lag and I didn't want to encroach on the boot space which other systems did. It took me a while to find skilled people to make this system, turned out they were ProAlloy in Haverhill (UK)..... right on my doorstep.

If you fit it yourself with the parts from ProAlloy it should cost much less. Even so, it's going to cost!

Fitted to a totally standard v8 (and gearbox) with normal boost & ECU it will protect your engine at all times but especially when you're booting it... Air intake temperatures stay much lower, less heat goes into your engine particularly around the piston crowns. It will protect against detonation (pinking). In the non-charge cooled v8 the ECU will retard the ignition (seriously taking away your power) take away your boost and inject lots of fuel to protect itself when intake temps get too high. With charge coolers you can run standard boost levels at maximum for longer because the ECU doesn't need to do anything to protect the engine. A standard v8 with charge coolers will have more power in all ambient air temperatures. The ECU monitors the air intake temp and applies the appropriate amount of fuel.... more fuel with this cooler denser charge means a bigger bang and more power.

I do run higher boost for more power than standard, but I haven't needed to change the turbos possibly because I have charge coolers. The standard turbos with only the wastegate capsules (and ECU) changed to ones supplied by Marcus at PUK seem to be able to sustain 15psi without problem even in high ambient temperatures. I monitor the intake air temp and other levels via the OBD 2 and a Torque app. I use a Greddy ProFec boost controller.... handy for turning the boost down to almost nothing when it's p***ing with rain! ... or when you don't want to be driving down the road like a stabbed rat. Oh... and fit Nitrons they're great... when you are in stabbed rat mode... along with some decent brakes.

Enough.

 

 

 

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I’m still interested too but i still don’t think there is any pricing.  If it’s a few thousand I could go for it but any more and the pots empty 🙈🙈🙈

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I'll be calling in to ProAlloy shortly so I'll have a chat with them about getting individual components for this system identified and priced. Also, I'll see if I can get under my car and start to produce a list of parts... with photos.

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Hi all. I am definitely interested as well. i don't need any more power but they must give improved reliability with less strain on the components. I looks more practical than the R & B kit. Its just the price I need.

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https://lotuspbc.com/upgrades

 

Here is a solution from the states (have to scroll down about half way).  I dont know much about PBC but the one time I checked pricing on something it took my breath a bit.

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On 06/12/2019 at 21:37, nick_wannop said:

I'll be calling in to ProAlloy shortly so I'll have a chat with them about getting individual components for this system identified and priced. Also, I'll see if I can get under my car and start to produce a list of parts... with photos.

Hi @nick_wannop thanks for volunteering to provide more info on this setup. It is by far the neatest solution I have seen to date and have my fingers crossed that the bean counters at ProAlloy are kind to us and can provide the bits and pieces necessary at an affordable price. I am keen to join the list of very interested parties and also look forward to as many photos as possible. 🙂

Can you answer a quick question, are you able to run the charge cooler radiator and keep the aircon rads too?

cheers

-Chris

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Hi Chris, yes I do have the air con rads too.

Sorry this is moving slowly but I'm pretty busy at the moment.

ProAlloy are making a part for me so I'll be seeing them soon. I'll discuss things with them at that point.

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1 hour ago, nick_wannop said:

Hi Chris, yes I do have the air con rads too.

Sorry this is moving slowly but I'm pretty busy at the moment.

ProAlloy are making a part for me so I'll be seeing them soon. I'll discuss things with them at that point.

Just not good enough. :getmecoat:

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