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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17378   
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I imagine that in order to maximise the benefit of the manifolds you'd also have to port the heads to match the manifold. That should make an appreciable performance difference.
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14th Apr 2020 7:13pm |
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| grafty99 Member Since: 15 Aug 2012 Location: North Devon Posts: 4785 
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Its a fully John Eales built Griff 500 5.0L V8.
So, Off the top of my head work done includes; Fully blueprinted, Dynamically balanced, Cross bolted Later serpentine front end (inc improved oil pump), Stage 4 big valve ported & gas flowed heads, Fully machined trumpet base and inlet tracts (port matched), Custom high torque cam by JE Fully hand formed trumpet flares and now JE big bore cast manifolds (also gasket matched) and probably some I've missed! It originally had a full Janspeed system on it , but the mild steel headers didn't cope well with a life near the sea! That system was replaced by an off the shelf stainless affair in the early 2000's (not long before it was decommissioned). The generic stainless jobbie seriously hampered performance, being only (poorly) designed for a 3.5. Hopefully the system I'm building will allow it to breath, again, as it once did 
After the mandatory start up with only headers on (to check for exhaust gas leaks obviously  ) I can certainly say that it revs much more freely than it did with just the generic stainless headers on  2002 90 Td5 Station Wagon
1990 Vogue SE Triumph Tiger Explorer 1200 Td5 90 Thread http://www.defender2.net/forum/topic50767.html Tdi 110 Thread https://www.defender2.net/forum/topic69562.html RRC Thread http://www.defender2.net/forum/topic54492.html Instagram http://www.instagram.com/george_grafton |
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14th Apr 2020 8:46pm |
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| grafty99 Member Since: 15 Aug 2012 Location: North Devon Posts: 4785
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Small update today, I forgot to take pictures when it was fully welded, but hopefully over the weekend I'll get the system close to finished
 Click image to enlarge Click image to enlarge Click image to enlarge 2002 90 Td5 Station Wagon 1990 Vogue SE Triumph Tiger Explorer 1200 Td5 90 Thread http://www.defender2.net/forum/topic50767.html Tdi 110 Thread https://www.defender2.net/forum/topic69562.html RRC Thread http://www.defender2.net/forum/topic54492.html Instagram http://www.instagram.com/george_grafton |
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16th Apr 2020 7:21pm |
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| Barneyboy Member Since: 19 Nov 2014 Location: Exmoor Posts: 1621  
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Another great job you’re doing with this RRC, please let us have a soundtrack once it’s completed
cheers Paul |
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16th Apr 2020 7:55pm |
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| 100inch Member Since: 15 May 2012 Location: Brunswick Posts: 411  
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Did you discuss your plans to have no X/Y merge piece with John E when you bought the engine?
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17th Apr 2020 8:23am |
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| grafty99 Member Since: 15 Aug 2012 Location: North Devon Posts: 4785
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Thanks Paul
The original conversion was done in the late 90s so no, not at the time. If unbalanced pipes don't suit it then I can very easily fit a H pipe
(I'm not keen on the sound of X pipes and apparently H pipes are better for low down torque ) 2002 90 Td5 Station Wagon
1990 Vogue SE Triumph Tiger Explorer 1200 Td5 90 Thread http://www.defender2.net/forum/topic50767.html Tdi 110 Thread https://www.defender2.net/forum/topic69562.html RRC Thread http://www.defender2.net/forum/topic54492.html Instagram http://www.instagram.com/george_grafton |
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17th Apr 2020 11:58am |
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| grafty99 Member Since: 15 Aug 2012 Location: North Devon Posts: 4785
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Took the Range Rover for a drive around the site today (with the exhaust finished apart from the rear silencers).
The conclusion from this highly scientific experiment is that two fold. Firstly, it sounds simply sublime - just what I'd hoped for. 
Secondly, traction (on an unsealed road) is now a problem up to about 60mph 
So all in all, a very satisfying job so far! When I've got the silencers fitted and linked up I'll do full photos and a video 2002 90 Td5 Station Wagon
1990 Vogue SE Triumph Tiger Explorer 1200 Td5 90 Thread http://www.defender2.net/forum/topic50767.html Tdi 110 Thread https://www.defender2.net/forum/topic69562.html RRC Thread http://www.defender2.net/forum/topic54492.html Instagram http://www.instagram.com/george_grafton |
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20th Apr 2020 6:04pm |
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| Procta Member Since: 03 Dec 2016 Location: Sunderland Posts: 5166
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I have heard these can wheel spin
Defender TD5 90 ---/--- Peugeot 306 HDI hatch back
Success is 90% Inspiration and 4 minutes Preparation # you can make it! |
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20th Apr 2020 9:54pm |
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| grafty99 Member Since: 15 Aug 2012 Location: North Devon Posts: 4785
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Mine now spins all 4 very easily around the site, it didn't before! Not scientific I know but it must be putting more power down to do that. The viscous centre diff in the RRC is 60/40 power split to the rear believe and also effectively limited slip as the diff locks when there is wheel spin front or rear
2002 90 Td5 Station Wagon
1990 Vogue SE Triumph Tiger Explorer 1200 Td5 90 Thread http://www.defender2.net/forum/topic50767.html Tdi 110 Thread https://www.defender2.net/forum/topic69562.html RRC Thread http://www.defender2.net/forum/topic54492.html Instagram http://www.instagram.com/george_grafton |
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20th Apr 2020 9:57pm |
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| Procta Member Since: 03 Dec 2016 Location: Sunderland Posts: 5166
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It will be, i remember the SPi to MPi days, the lads used to convert the SPi cars to MPi so they could get more power etc. ECU, injection system and exhaust etc swop over.
Anyway when i bought my GTA 16v SPI, the owner looked into MPi converting the car, but couldnt really get the earlier bits. But fitted the MPI manifold and he found that it made a hell of a difference over the SPI stuff, He told me it could have been pushing 100+ bhp, with the MPi manifold. They were about 90 bhp with the spi manifold on. I finished the conversion but that's another story  So a good decent exhaust really makes the difference My HDI has a Power flow system on and that opened the car up. Defender TD5 90 ---/--- Peugeot 306 HDI hatch back
Success is 90% Inspiration and 4 minutes Preparation # you can make it! |
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20th Apr 2020 10:15pm |
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| grafty99 Member Since: 15 Aug 2012 Location: North Devon Posts: 4785
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Picture of the finished exhaust, the only thing left to do is the tips. I'm thinking simple 3 inch rolled out tips
Video to follow
Click image to enlarge 2002 90 Td5 Station Wagon 1990 Vogue SE Triumph Tiger Explorer 1200 Td5 90 Thread http://www.defender2.net/forum/topic50767.html Tdi 110 Thread https://www.defender2.net/forum/topic69562.html RRC Thread http://www.defender2.net/forum/topic54492.html Instagram http://www.instagram.com/george_grafton |
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25th Apr 2020 1:02pm |
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| Barneyboy Member Since: 19 Nov 2014 Location: Exmoor Posts: 1621
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Very nice
cheers Paul |
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25th Apr 2020 1:19pm |
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| grafty99 Member Since: 15 Aug 2012 Location: North Devon Posts: 4785
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Here's the video - hopefully the sound comes out ok
2002 90 Td5 Station Wagon 1990 Vogue SE Triumph Tiger Explorer 1200 Td5 90 Thread http://www.defender2.net/forum/topic50767.html Tdi 110 Thread https://www.defender2.net/forum/topic69562.html RRC Thread http://www.defender2.net/forum/topic54492.html Instagram http://www.instagram.com/george_grafton |
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25th Apr 2020 3:44pm |
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| Barneyboy Member Since: 19 Nov 2014 Location: Exmoor Posts: 1621
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Nice cheers Paul |
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26th Apr 2020 6:56am |
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