XJR6.-95 exhaust manifolds
#1
XJR6.-95 exhaust manifolds
Hi. Had to weld my cracked manifolds and discovered that new ones are not easy to find. It also seems there are not anyone making them anymore.
I will try making new ones in steel but need old (cracked) ones for to make jigs, so now I am wondering if anyone have some for sale..please let me know? I plan to make a few (for sale?) if not to complicated to reproduce.
Regards
I will try making new ones in steel but need old (cracked) ones for to make jigs, so now I am wondering if anyone have some for sale..please let me know? I plan to make a few (for sale?) if not to complicated to reproduce.
Regards
#2
There have been many previous discussions as well as attempts to fabricate factory exhaust manifold replacements in steel or half steel, but no one seems serious to take their proposals any further. Check out previous threads here:
Expression of Interest in Custom-made Stainless Steel Exhaust Manifolds for X300
Exhaust Manifolds and Downpipes Modifications
If you are really interested and would try to reproduce and help others, I would give you my used set free; you just pay for the postage (expensive because of the weight and cross-continent distance). PM me your mailing address and I shall find out the postage.
Expression of Interest in Custom-made Stainless Steel Exhaust Manifolds for X300
Exhaust Manifolds and Downpipes Modifications
If you are really interested and would try to reproduce and help others, I would give you my used set free; you just pay for the postage (expensive because of the weight and cross-continent distance). PM me your mailing address and I shall find out the postage.
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Arnstein (07-22-2017)
#3
This is on a need to know basis. AJ6 engineering is no longer producing AJ16 exhaust manifolds. Exhaust manifolds from the N/A versions of the same engine fit but at a greatly lowered price because of so many thousands more made. Sure it is going to crack again but at least we are recycling.
Larry Louton
Larry Louton
#4
This is on a need to know basis. AJ6 engineering is no longer producing AJ16 exhaust manifolds. Exhaust manifolds from the N/A versions of the same engine fit but at a greatly lowered price because of so many thousands more made. Sure it is going to crack again but at least we are recycling.
Larry Louton
Larry Louton
#5
Have you given some thought into the mapped out bicycle spokes over a high Temp patch repair ? Although it could be a complete failure , it may be a solution over a new casting . Any suggestions on how to make it better before going to an external casting cuff approach beyond the bicycle spokes approach ? Wouldn't be hard to make a external casting each different for each crack location .
#7
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#8
#9
Well done, Arnstein! This is the first time I am seeing the result of X300 exhaust manifolds DIY in steel, following original factory pattern so they will definitely fit without modifications needed to the down pipes and heat shield although one may have to give up air injection. As expected production in small numbers means high costs, and as the pair weighs about 9 kg shipping across the continents/oceans would be expensive. However, I just did a quick survey on eBay, used front and rear manifolds are selling between GBP180 and GBP230 a piece, shipment extra. So go figure how much one is willing to pay for a custom-made pair of exhaust manifold made of steel.
#10
#12
Dear All,
While Jaguar was still offering the cast iron manifolds for sale, it was not economic to consider engineering alternative parts. Now that these parts are no longer available from Jaguar, I may re-think that decision. After the success of my crank sensor brackets and front anti-roll bar drop links, maybe it is time to expand my product range to include exhaust manifolds.
While Jaguar was still offering the cast iron manifolds for sale, it was not economic to consider engineering alternative parts. Now that these parts are no longer available from Jaguar, I may re-think that decision. After the success of my crank sensor brackets and front anti-roll bar drop links, maybe it is time to expand my product range to include exhaust manifolds.
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al_roethlisberger (12-31-2017)
#13
#14
#15
Dear All,
While Jaguar was still offering the cast iron manifolds for sale, it was not economic to consider engineering alternative parts. Now that these parts are no longer available from Jaguar, I may re-think that decision. After the success of my crank sensor brackets and front anti-roll bar drop links, maybe it is time to expand my product range to include exhaust manifolds.
While Jaguar was still offering the cast iron manifolds for sale, it was not economic to consider engineering alternative parts. Now that these parts are no longer available from Jaguar, I may re-think that decision. After the success of my crank sensor brackets and front anti-roll bar drop links, maybe it is time to expand my product range to include exhaust manifolds.
#16
I think this is a factor the supplier has to consider. The number of X300 originally configured with or without air injection and EGR and how many are still running with or without modifications is difficult to estimate. From the production and sale point of view, the fewer the variance the more cost-effective it is to make them. However, having air-injection and EGR ports ready and allowing them to be plugged if of no use would be a way out. There is some trade-off between potential performance upgrades, compatibility, ease of installation and costs. Shipping costs alone due to weight and size of the manifolds is going to hurt, but one has to agree that used ones cost the same to ship.
#17
Regarding the EGR and air injection. The ones made by AJ6 engineering were also made without this.
Mine made in ordinary steel can have the boss for EGR / air inj. welded on by the buyer if needed.
Too many hours making them I think.. so unless a big demand and finding a kind of serial production agreement with a workshop I probably stop with the two pairs made. One pair for sale!
Mine made in ordinary steel can have the boss for EGR / air inj. welded on by the buyer if needed.
Too many hours making them I think.. so unless a big demand and finding a kind of serial production agreement with a workshop I probably stop with the two pairs made. One pair for sale!
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al_roethlisberger (12-31-2017)
#18
Regarding the EGR and air injection. The ones made by AJ6 engineering were also made without this.
Mine made in ordinary steel can have the boss for EGR / air inj. welded on by the buyer if needed.
Too many hours making them I think.. so unless a big demand and finding a kind of serial production agreement with a workshop I probably stop with the two pairs made. One pair for sale!
Mine made in ordinary steel can have the boss for EGR / air inj. welded on by the buyer if needed.
Too many hours making them I think.. so unless a big demand and finding a kind of serial production agreement with a workshop I probably stop with the two pairs made. One pair for sale!
I've sent a PM inquiring into the second set for sale.
It looks like the set you have already have the air injection bosses installed, or are those something else?
I really do think there is a market for a simple (log type perhaps) steel replacement for the weak OEM cast iron headers. Equal length stainless steel would be nice, but the cost and fitment issues probably make those a challenge to produce economically.
But a less expensive design like a "log" or the set linked above might be more inexpensive to produce, and therefore sell affordably.
And as pointed out, with the simple design above one can have a competent shop weld the necessary EGR and air-injection bosses into the header.
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