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I hope you keep your old engine for parts.
Also while you have the engine out and since you are in a hot climate doing spirited driving; find a way to improve the side vents so that meaningful hot air can evacuate. That thing is more for show. And this car has a under-hood temp problem for sure.
I hope you keep your old engine for parts.
Also while you have the engine out and since you are in a hot climate doing spirited driving; find a way to improve the side vents so that meaningful hot air can evacuate. That thing is more for show. And this car has a under-hood temp problem for sure.
I'm all about cooling. I would really like the louvered hood but $$$$ Never considered the side vents Any ideas on how to improve on side vents? Something aftermarket available perhaps?
Curious if any of the tuners have expressed any reservation about the limits of the cast iron crankshaft in these engines. I know Jag uses fancy terms for what is essentially a ductile iron casting, and most of what I have researched says steer clear of cast iron for applications exceeding 500-600HP. Thanks...
Curious if any of the tuners have expressed any reservation about the limits of the cast iron crankshaft in these engines. I know Jag uses fancy terms for what is essentially a ductile iron casting, and most of what I have researched says steer clear of cast iron for applications exceeding 500-600HP. Thanks...
I'm not too sure, but a stock XKR-S is tuned to 542 HP...so?
My conclusion looking at the pictures that it is melted first, then fused. This points to a thermal event and not oil issue. Loss of oil pressure would have had bearings fuse and cease first.
I'm all about cooling. I would really like the louvered hood but $$$$ Never considered the side vents Any ideas on how to improve on side vents? Something aftermarket available perhaps?
The exterior needs the largest percentage opening grille that you find visually acceptable. If my vents were horizontal like yours I might even leave them open. Even if a mesh has 75% flow rate, it means you are reducing airflow by 25%, in an already very small opening. Make opening inside the fender even larger.
Louvers wont work on this car. You dont want air to flow through the radiator and out the top of the hood. You want it to travel the length of the engine and relive the high pressure area by the firewall where the heat wants to accumulate.
The new to me engine being worked on. All the bits that i need from the old engine being cleaned and put in this one. Anything that looks even slightly suspicious will be replaced. VVTs had to be transferred over aswell -
We are using the metal parts from the old engine which due to cost savings are now plastic on the newer engines. You can see those sitting on top.
The exterior needs the largest percentage opening grille that you find visually acceptable. If my vents were horizontal like yours I might even leave them open. Even if a mesh has 75% flow rate, it means you are reducing airflow by 25%, in an already very small opening. Make opening inside the fender even larger.
Louvers wont work on this car. You dont want air to flow through the radiator and out the top of the hood. You want it to travel the length of the engine and relive the high pressure area by the firewall where the heat wants to accumulate.
Consider wrapping the headers.
So why did they put louvers on the XKR?
You can also consider making a ram-air duct underneath the engine to relieve the hot spot by the firewall. Similar to the alternator cooling duct seen below.
Or an open duct underneath the car that would use the low pressure passing air to pull the air out of the hot spot. That would also force air form the front grille to make its way to the back of the engine bay.
Same reason god put **** on a man. I suppose a little bit of excitement, thats all.
They are of about as much use.
The idea of the duct is a good one, although if you can do that kind of work, you can easily make the side vents more functional. Even my 42 year old truck has them.
What shop is doing the install? Is it a Jag dealer?
It is a Jag Dealer- Budds Jaguar in Oakville, Ontario, Canada- great people - awesome service. Special shout out to Bill (service manager) Joel ( my main man) and Lewis (the apprentice)
This has been a pretty informative thread so thanks for sharing. Is there any way you can find out what parts needed changing out from the older engine to the new one?
It is a Jag Dealer- Budds Jaguar in Oakville, Ontario, Canada- great people - awesome service. Special shout out to Bill (service manager) Joel ( my main man) and Lewis (the apprentice)
Everything makes sense now. Its good ole Canada. Cannot imagine a jaguar dealer in America working with 2 engines to make one whole. They wont even rebuild a differential.
This has been a pretty informative thread so thanks for sharing. Is there any way you can find out what parts needed changing out from the older engine to the new one?
The things i know of:
VVTs
Supercharger
Oil pan
Engine Mounts
Big issue was the Denso vs. BOSCH- the guys thought about switching over to the Bosch system but then they would have been getting into writing code. Possible but bot really practical. Hece the decision to take any parts needed from the old engine.
New chains, seals and anything else my tech thinks that needs replacing will be replaced.
This forum is awesome. I normally lurk and learn as I didnt have anything of interest to add - so much knowlege and expertise is here. Glad to be able to share my experiences and to have input.
Having gone through this same process actually prior to purchasing my car, I can really appreciate this thread. And, six years later, having the spare engine to scavenge for parts has saved me a lot of money. Last week, a leaky oil cooler was replaced with the one from the original. A month ago, a CAM positioning sensor was pulled from the old and plugged into the new. I'm sure over time, you'll be able to save nearly the equivalent of the cost of the engine with parts you'll reuse. Can't wait to see your cat back on the road.
Same reason god put **** on a man. I suppose a little bit of excitement, thats all.
They are of about as much use.
The idea of the duct is a good one, although if you can do that kind of work, you can easily make the side vents more functional. Even my 42 year old truck has them.
It really seems impossible to make any use of the side vents
There is no flow from engine bay...see picture
It really seems impossible to make any use of the side vents
There is no flow from engine bay...see picture
This is what I suspected and was wondering while R Bhal had the engine out if he could figure out a way. Especially since he is willing to go above and beyond the factory.
I could tell by the opening aperture on my side that they would be useless. Even though I recently read an interview with the XK designer where he said those side vents provided some relief.
