Jaguar AJV8 for engine swaps?
Discussion
Jaguar AJV8 for engine swaps?
Ok then, while I keep looking at other cars to buy, part of me wants to keep one of my current toys, umm cars.
It’s a Rover V8 powered TR7 running a LT77 tranny. As good as it is, if I’m to keep it I need a reason to keep it.
So thinking of a different engine, or at least more power.
The Jaguar V8 springs to mind, partly because its British, but mostly because its small, light, modern and powerful.
However do I stand any chance of being able to fit one in a TR7 with a manual tranny and have it running without costing more money than I have?
I know when I’ve read about these engines in the past that they have been used in quite a few custom builds, old Jags (MKII’s) and Cobra replica’s. But they all retain the auto box.
Has anyone actually got these running with a manual gearbox and stand alone ECU???
Any info you have would be welcome, or failing that some other bright ideas.
Thanks.
Ok then, while I keep looking at other cars to buy, part of me wants to keep one of my current toys, umm cars.
It’s a Rover V8 powered TR7 running a LT77 tranny. As good as it is, if I’m to keep it I need a reason to keep it.
So thinking of a different engine, or at least more power.
The Jaguar V8 springs to mind, partly because its British, but mostly because its small, light, modern and powerful.
However do I stand any chance of being able to fit one in a TR7 with a manual tranny and have it running without costing more money than I have?
I know when I’ve read about these engines in the past that they have been used in quite a few custom builds, old Jags (MKII’s) and Cobra replica’s. But they all retain the auto box.
Has anyone actually got these running with a manual gearbox and stand alone ECU???
Any info you have would be welcome, or failing that some other bright ideas.
Thanks.
I like your thinking. I know the engine is a bit too big to go in a Griff, so I'm not really helping there.
Most engines can be made to work with an aftermarket ECU with a custom wiring loom. It's a conventional even fire engine after all. Does anyone know what crank (& cam) sensors are fitted? EG VR 36-1 crank trigger?
Most engines can be made to work with an aftermarket ECU with a custom wiring loom. It's a conventional even fire engine after all. Does anyone know what crank (& cam) sensors are fitted? EG VR 36-1 crank trigger?
Probably the risk of it having to talk to a body control ECU and an auto gearbox ECU via CAN protocol or something only Jaguar knows about before it will even allow the engine to turn. Not to mention there being potential dramas with the engine ECU thinking the immobiliser doesn't exist, so it won't play...
I dare say there are ways round this, but aftermarket ECUs at least have a defined cost at the start!
I dare say there are ways round this, but aftermarket ECUs at least have a defined cost at the start!
Fair point, but I thought that the XJR lump was way before CAN stuff. Although I'm not terrible familiar with that aspect of moderns, it was only a question 
While the cost of an after market is reasonably well defined as you say, it's quite high. And setting up can be pricy too. If you can run stock management (especially if it's just a few wires from an imobilisor) shirley that's a better option on a stock engine.
>> and just re-read "stand alone ECU" in the original post, so sorry about even posting
While the cost of an after market is reasonably well defined as you say, it's quite high. And setting up can be pricy too. If you can run stock management (especially if it's just a few wires from an imobilisor) shirley that's a better option on a stock engine.
>> and just re-read "stand alone ECU" in the original post, so sorry about even posting
Edited by Incorrigible on Wednesday 27th October 00:21
Incorrigible said:
Fair point, but I thought that the XJR lump was way before CAN stuff. Although I'm not terrible familiar with that aspect of moderns, it was only a question
While the cost of an after market is reasonably well defined as you say, it's quite high. And setting up can be pricy too. If you can run stock management (especially if it's just a few wires from an imobilisor) shirley that's a better option on a stock engine.
>> and just re-read "stand alone ECU" in the original post, so sorry about even posting
The 1986 XJ40 had CANBUS. I think it was the first production car to have it. CANBUS was originally proposed in 1978...While the cost of an after market is reasonably well defined as you say, it's quite high. And setting up can be pricy too. If you can run stock management (especially if it's just a few wires from an imobilisor) shirley that's a better option on a stock engine.
>> and just re-read "stand alone ECU" in the original post, so sorry about even posting
Edited by Incorrigible on Wednesday 27th October 00:21
I have been looking at using the jag V8 from a 97 car as the previous posts it requires inputs from nearly every dam thing on the car to run with the std ecu eg wheel speed from abs can to gearbox the termination resistors for the can are in the dash module & need replacing it looks like a pig of a job without access to jaguar info to simulate the can data from all the missing items you will not be using. The after market ecu is also a problem as if you wish to use the variable valve timing you are limited on ecu,s you can use as this is not just rpm controlled it monitors load also then you need a flywheel machining to go with a suitable gearbox. There is a post i put on the Jag forum with more info.
Ian
Ian
I'd be very keen to know how well this all goes together. I've thought about the idea of putting a V8 into my S-type but retaining the manual gearbox. ECU and management seems to be the biggest hurdle, everything else is just a case of machining adaptor plates, flywheels etc to get it to fit.
What aftermarket ECUs will allow control of the VVT and variable intake?
What aftermarket ECUs will allow control of the VVT and variable intake?
Everything is possible with enough money.
You can buy a complete XK8 for about £5K whereas the manual conversion if its the one I'd heard about is £5K+ more. A good running S-type or XJ with a V8 fitted can easily be had for about £2K. If it could be converted a lot cheaper than the £5K it would be a good replacement for the old Rover V8 as they're quite freely available now but are all on auto boxes...
You can buy a complete XK8 for about £5K whereas the manual conversion if its the one I'd heard about is £5K+ more. A good running S-type or XJ with a V8 fitted can easily be had for about £2K. If it could be converted a lot cheaper than the £5K it would be a good replacement for the old Rover V8 as they're quite freely available now but are all on auto boxes...
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