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2nd Gen EB XR8 engine quality 

 

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 Post subject: 2nd Gen EB XR8 engine quality
Posted: Tue Oct 19, 2010 6:41 pm 
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Hello from across the ditch.

I'm in the process of sourcing an EFI 302 for a conversion into a Mk1 Capri and have found a pretty well-priced 1993 XR8 half cut.

However, I've done some searching and have found a few examples of people saying they're rubbish motors.
What makes them rubbish? What model should I be seeking an engine from?
I don't have a huge amount to spend, so any later model variants are out of the question.

Also, i have a T5 box for the conversion. Will i still be able to use the factory ECU if the donor car was an auto?

Cheers, great site you have here.

Bern
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 Post subject: Re: 2nd Gen EB XR8 engine quality
Posted: Tue Oct 19, 2010 6:56 pm 
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there not a rubbish engine they are quite strong and reliable, its just in std form they are not much of a performer,( rubbish performance std) compared to the 6 cyl..
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 Post subject: Re: 2nd Gen EB XR8 engine quality
Posted: Tue Oct 19, 2010 7:07 pm 
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Cheers. Is that the case for all the early EFI windsors, being poor performers?

At the moment it has a 302W from a 70's model Falcon or similar. Retrofitting an injection kit is another option i've looked into, but seems like the internals on the old block might hold it back.
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 Post subject: Re: 2nd Gen EB XR8 engine quality
Posted: Tue Oct 19, 2010 7:08 pm 
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They are a bit of a slug down low, But otherwise they are strong motors I've heard, like the I6 you can safely bolt a low boost setup on them and get some giggles.

Should be able to trick the ECU onto thinkin it's in neutral. Not too sure how but there's probably a thread about it in electrical or tech section.

 

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the-garage-f53/my-fairlane-build-lowlane-t94891.html.
Also in the garage....
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 Post subject: Re: 2nd Gen EB XR8 engine quality
Posted: Tue Oct 19, 2010 7:33 pm 
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Is the T5 box a V8 specific box? Six cylinder boxes require a fair bit of modification to fit.

Cheers
BenJ

 

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 Post subject: Re: 2nd Gen EB XR8 engine quality
Posted: Tue Oct 19, 2010 8:03 pm 
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Sweet, so they're not a bad conversion then :) I was mostly worried about reliability issues. Considering the capri must weigh in at around a tonne the XR8 motor should offer a decent amount of poke to have fun with.

The T5 was the factory option for a bunch of V8s and sixes over the years. Mine is from a VN Commodore. I think my main issue will be getting a bellhousing made up to suit the 302.

Cheers
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 Post subject: Re: 2nd Gen EB XR8 engine quality
Posted: Tue Oct 19, 2010 8:11 pm 
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Commonwhore box will not fit and no one makes a bellhousing to suit.

 

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 Post subject: Re: 2nd Gen EB XR8 engine quality
Posted: Tue Oct 19, 2010 8:21 pm 
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EVL098 wrote:
Commonwhore box will not fit and no one makes a bellhousing to suit.


I see. And there's no way to get around that? Is that because the input shaft is too long?

There's a W50 in our wrecked Celica camry. That's about my only other option at this point.

Last edited by capriv8 on Tue Oct 19, 2010 8:36 pm, edited 1 time in total.

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 Post subject: Re: 2nd Gen EB XR8 engine quality
Posted: Tue Oct 19, 2010 8:34 pm 
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capriv8 wrote:
EVL098 wrote:
Commonwhore box will not fit and no one makes a bellhousing to suit.


And there's no way to get around that? Is that because the input shaft is too long?

I got hold of a commy box during my conversion parts gathering
from what I saw the only difference is the input shaft being longer and the bellhousing different.
(V8/V6/I6 all same box housing)
Swap input shafts, bolt it to a ford V8 bellhousing and away you go...

 

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[color=#004080]Cheers, Jacob.

NA Fairlane Build thread:
the-garage-f53/my-fairlane-build-lowlane-t94891.html.
Also in the garage....
AU LTD, DC LTD, and Lowlane.

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 Post subject: Re: 2nd Gen EB XR8 engine quality
Posted: Wed Oct 20, 2010 11:57 am 
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Any Falcon 5.0 engine is a good thing. Only f**k wits think they are rubbish!
It was only the non-HO U.S engines that were slugs with only 165hp....HO's are 225hp.
Even then they are still good building blocks for a much more powerful lightweight engine.
You can still use an Auto EECIV to run yours with a manual.
A Mate of mine has one in his Capri with Edelbrock heads, cobra intake and F303 cam through a Z-type T5 and 9" for 335hp at the treads with the EECIV.
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 Post subject: Re: 2nd Gen EB XR8 engine quality
Posted: Wed Oct 20, 2010 12:03 pm 
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XR9UTE wrote:
Any Falcon 5.0 engine is a good thing. Only f**k wits think they are rubbish!
It was only the non-HO U.S engines that were slugs with only 165hp....HO's are 225hp.
Even then they are still good building blocks for a much more powerful lightweight engine.
You can still use an Auto EECIV to run yours with a manual.
A Mate of mine has one in his Capri with Edelbrock heads, cobra intake and F303 cam through a Z-type T5 and 9" for 335hp at the treads with the EECIV.


That's great to know! Cheers man :D
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 Post subject: Re: 2nd Gen EB XR8 engine quality
Posted: Thu Oct 21, 2010 11:25 pm 
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The HO engines don't feel all that bad with a T5 behind them. I've got a EB Xr8 5spd & Eb Ghia I6 5spd in my stable of cars. They do feel a little sluggish with an auto, but so does a stock 6 in a EA - ED falcon!

Cheers

ToranaGuy

 

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 Post subject: Re: 2nd Gen EB XR8 engine quality
Posted: Sat Oct 23, 2010 7:41 pm 
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capriv8 wrote:

Also, i have a T5 box for the conversion. Will i still be able to use the factory ECU if the donor car was an auto?

Cheers, great site you have here.

Bern


The auto ecu will run it, but not properly. The EB-ED auto ecu's had torque truncation as the default in the absense of the TID signal. This will drop out around 12 degrees of spark advance at higher load levels. Idle control is also different between auto and manual so your coast and decelerate will behave slightly unexpectedly. Fuel control AFR targets are quite different in open loop. With the proper modifications the auto ecu can be made to work like a manual ecu which is really what you should use if you want optimal operation.

 

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 Post subject: Re: 2nd Gen EB XR8 engine quality
Posted: Sat Dec 29, 2012 11:24 am 
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EVL098 wrote:
Commonwhore box will not fit and no one makes a bellhousing to suit.

Yeah they do-dellows does one as does tremec. Plate cost me $185 and housing $350. Will mount up a T56 from a commywhore and even got the housing made to retain the starter on the passengers side.

The internet(and just cars magazine) is your friend.

Hooroo
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 Post subject: Re: 2nd Gen EB XR8 engine quality
Posted: Sat Dec 29, 2012 11:56 am 
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Brilliant motor! I put 100,000kays on my last one and 50,000 on the one I have now. To be safe, replace the timing cover and water pump as they can corrode and dump all the coolant into the sump. Check the welsh plugs, remote mount or at least replace the ignition module, blank off the EGR then use a J3 to make the ECU work with the T5 and no EGR. Most EFI 5.0s I've seen have never even had a rocker cover removed! Its mainly the parts bolted to the motor that fail.

 

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