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MD355

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Everything posted by MD355

  1. I was looking around at alternatives and I came across this page (I am not affiliated in any way or know anything about this company) ... They seem to offer something called Barrel Chargecoolers (looks like a barrel). https://www.chargecooler.co.uk/ Do you thing two of these would fit in the OEM Esprit V8 engine space (without modification to the trunk) and would they be effective ?
  2. Reading all of the above, I am starting to understand the importance of having a Chargecooler system on an Esprit V8. It is a pity the Pro Alloy Chargecooler project didn't move on, since it would have been ideal as it fits in the currect engine bay of the Esprit with no need to sacrifice the luggage space. Any chance somebody could share with us the AutoCAD drawings of the chargecoolers, so I could try to find somebody in my country that can make them ? A list of components such as electric fluid pump, hose diameters, chargecooler fluid radiator specs, etc would be helpful too, so we could try to replicate the system. Does the chargecooler system use distilled water or coolant fluid or something else ? Thanks !!
  3. @mike_sekinger While we are on the subject, lets say a chargecooler kit is installed... What do you estimate would be the temperature of the compressed air from the turbos before the chargercooler, and what would be the air temperature after leaving the chargecooler entering the intake manifold ? (in normal ambient conditions) Also in performance terms, if lets say the ambient air is cool and the engine is working normally it would produce 350 bhp... When the air warms up and the ECU lowers turbo pressure, retards timing and injects more fuel to cool down, what would be the power produced, lets say 290 bhp ? As I have little experience with turbo cars and chargecoolers, I am trying to understand.. Thanks
  4. @mike_sekinger Just curious, I was reading the Esprit WSM and at page 1414/1899 it is explaining the position of the Inlet Air Temperature (IAT) sensor on the Esprit V8 , which from my understanding is on the air duct coming from the turbo that leads to the intake manifold. Therefore, lets say a Chargecooler system was installed, would this sensor take the before or after temperature ? My guess is the after, as the before is not relevant right ? Thanks
  5. @mike_sekinger I have a theoretical question : Let's say the chargecooler kit is built and installed... Would the chargecooler radiator at the front interfere with the operation of the engine radiator ? Would the chargecooler radiator block / reduce the air cooling area of the regular radiator ? Thanks !!
  6. @cweeden I believe the most important part is the actual chargecooler... That would be great if we could source it... The rest of the piping, electric pump and radiator I believe we could each custom build..
  7. @mike_sekinger Fantastic video !!! Thank you !!!
  8. @mike_sekinger Thank you again for your response !! As always you provide true valuable information for all of us here at the Lotus Esprit V8 forum !! I am convinced the chargecooler is the best modification for my car.. I will try to find someone here in Athens, Greece that deals with chargecoolers that can fabricate a custom solution for me.. In the meantime, I tried watching your video but I get this message "We could not locate the item you are trying to view."
  9. You are probably right, I am probably overthinking about it.. While I understand the theory behind this modifications, what I wanted is more of a "magazine reviewer experience".. The so called "in the driver's seat" experience before and after the modifications.. Will I feel the difference on a daily basis when I drive the car ? How much % stronger does it feel in low / mid / high rpm (doesn't have to be exact just the feeling) ? Sometime without the intercooler/chargecooler my car feels like the engine is bogging down, saturated with fuel, not very responsive... Will this change with the addition of the chargecooler and rev faster and feel more responsive ? Thanks !!
  10. Besides the performance dyno data, which is very important, I would be interested to know on a daily drive situation, how the chargecooler makes the car's performance more consistent.. For instance, driving 20 miles, before installation of chargecooler performance would drop off after say 5 miles or in slower speeds, but with the chargecooler, would there be constant high boost power ? Thanks !!
  11. It would be interesting and it would help a lot if Esprit V8 owners could talk about their before / after experience with the follow : 1) Intercooler before / after 2) Chargecooler before / after 3) Methanol Injection kit before / after Feel free to share with us your experience.. Thanks !!
  12. Thanks @mike_sekinger I know this might be too much asking, but any suggestion which water/methanol injection kit to buy for the Esprit V8 ? Anyone have any good experience with a specific system ? Thanks !!
  13. @mike_sekinger Thanks for the excellent explanation !! I now realize the importance of the intercooler / chargecooler... It is not so much the maximum power that is important in the Esprit V8, but the availability of the power all the time.. When things get hot in the intake it appears as if the wastegate opens and releases turbo pressure (my guess) , in combination with what you mention about dumping extra fuel to cool down the intake.. Which drops performance and makes the motor feel kind of sluggish sometimes.. Very annoying.. I also agree 100% with setting goals... For instance my goal would be : -to retain boot space -make the intercooler / chargecooler look like factory -keep the cost at reasonable level -maybe make this a reversible modification just in case I decide to remove this in the future (unlikely, but still no cutting of body parts is preferable) So I have carefully been reading the ProAlloy thread and it seems that the company is having hard time to deliver the kits.. Any suggestions / alternatives ? Thanks !!
  14. While checking this amazing threat about the prospect of Intercooler / Chargecooler on the V8 Esprit engine, I wanted to share some thoughts with you... First of all, from my experience in driving my Esprit I realized that when the car engine is cold, it pulls very strong and smooth.. When it gets hot it appears sometimes like it lacks the punch / kick... Could this be attributed to air intake temperature rising leading to lower boost pressure to prevent engine damage ? Secondly, assuming that a system that cools the intake air is installed, does this mean that the car will sustain turbo pressure more often leading to more constant performance ? And third of all, what are the advantages / disadvantages to Intercooler / Chargecooler ? In my opinion, an Intercooler is a cheaper, simpler setup, provided the air intakes are designed to cool the intercoolers... Furthermore, it might be challenging to avoid long piping resulting in some extra turbo lag... With regards to chargecooling, it is a heavier, more complex and more expensive setup, since it requires water piping, water radiator in the front and water pump.. So the cost is higher and more complexity added.. But it might be the only solution consider the tight Esprit V8 packaging.. Any thoughts on all 3 of the above points ? Thanks !! Makis
  15. I drove my car again for another 30 km of spirited driving with lots of turbo boost and there was no coolant missing.. I am starting to believe that the problem lies in the header tank.. Attached is a photo. When we fabricated a metallic coolant tank , my mechanic asked me if we wanted to retain the sensor and I insisted we do.. If you look closely, there appears to be red coolant on the plastic indicator, so maybe I should do away with this and just plug this opening too..
  16. I drove my car again for another 30 km of spirited driving with lots of turbo boost and there was no coolant missing.. I am starting to believe that the problem lies in the header tank.. Attached is a photo. When we fabricated a metallic coolant tank , my mechanic asked me if we wanted to retain the sensor and I insisted we do.. If you look closely, there appears to be red coolant on the plastic indicator, so maybe I should do away with this and just plug this opening too..
  17. Update : So today I drove my Esprit V8 around 30 km of combined traffic, highway driving and spirited driving, and guess what, the car performed perfectly and not a single drop of coolant was missing... I am starting to understand what is going on.. When I am driving with a group of more modern sportcars like Porsche 997/991 and want to keep up, or I have a passenger I want to show the capabilities of the Esprit V8, I tend to drive more aggressively pushing the turbos and the engine limits and this sometimes might lead to a little cooling fluid loss... Not sure where it is going.. It could be a) head gaskets b) turbos or c) from the custom header tank which I fabricated and I foolishly installed the stock coolant indicator (My mechanic wanted to make the coolant tank simple with one screw type cap, but I insisted that we also make room for the stock plastic indicator)... So for the time being I will just avoid pushing the car to its limits, and drive it as I always do and enjoy it without any problems..
  18. Sorry, I have been super busy with work... I plan to take the car to my mechanic as soon as I get some time off work and he is available..
  19. I checked the oil and it looks ok... I will go one of these days to my mechanic to check the coolant circuit.. I think he builds pressure to the system with the engine off to see any leak.. John's system looks cool and I also plan to use it to determine what is going on.. I will keep you posted..
  20. I will definitely check to see where the coolant is going.. In the meantime, how do you explain the fact that I can go for 3 weeks without any coolant leak (checking the tank each week) under normal driving conditions... And if I push the car and drive it hard it could lose coolant.. Is the coolant loss related to fast driving (when the engine is under load or the turbos are forcing pressure) so that coolant is lost when the car had been driven fast ?
  21. Hi to all, It's been a while since my last update and things have been going pretty well with the car.. I rebuilt the V8 engine with CP Carrillo Pistons, original Lotus head gaskets, APR head bolts, installed Scotch key on the belt pulley for safety, and also rebuilt the turbos.. Everything has been going well, until last Monday when I drove the car and when stuck in traffic, it started to overheat at 110-115 Celsius.. When I pulled over and let the car cool down, it was missing 2 liters coolant, which I added. I drove the car for a week at night and pushed on the turbos, and when I checked yesterday it was missing 700ml coolant.. I am under the impression that the car loses coolant when I drive it hard and push the turbos beyond 4500 rpm... Could the head gaskets after 4000 miles since the rebuild be leaking? Could coolant be leaking from the turbos ? Thanks
  22. @ProAlloy-Alex Hi !! Can you please explain what is different for US Specification cars ? Thanks !!
  23. Based on my mechanic, we found the PRV stuck open.. Fortunately this happened at low rpm. Immediately I saw the oil pressure light come on and slowed down, but it was too late.. I knew something was wrong, the metallic noise, so I towed my car to my mechanic where immediately he diagnosed a failed conrod bearing.. The bearing that failed was the one further away from the oil pump.. My mechanic said it would have been worse if a piston had seized.. The verdict was that the previous owner had not changed oil regularly and as a result the PRV accumulated dirt and got stuck open. Of course we replaced the PRV with a new one, and I also installed an oil pressure gauge, since the 2001 cockpit only has water temp..
  24. @Joey4420 when my Oil Pressure Release Valve (PRV) failed and my engine suffered from oil starvation causing a spun conrod bearing, I had to dismantle and rebuild the engine. I had to replace a lot of parts, including new oil pump, head bolts and head gaskets, which are not cheap.. Furthermore, the labor was going to be expensive.. So I decided I had my one and only chance to upgrade the cast pistons with CP Carillo forged items.. The price was right, and I decided to go ahead and do so.. My crankshaft was repaired and rebalanced based on the new pistons, and I am very happy now to know that my car has forged internals (the conrods are already forged steel, so is the crankshaft forged steel)... So, even though I work with stock turbo pressure (I rebuilt the turbos, fitted K&N air filters, deleted cats and muffler - just straight pipes, and put Sport 350 ECU) I am very happy to know that my car now has much stronger internals than when it left the factory.. Just think that you get your one chance to put those pistons.. Of course you decide, but this is my opinion..
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