2.5 cracked liner, advise please!!
31 October 2007, 06:19 PM
#61
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well with the block case feature in this thread 1.9 bar = 300 miles so 2.4 bar = about 255 miles
31 October 2007, 06:22 PM
#62
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Well my race engine runs a season between rebuilds but that is using a linered block.
On the EJ257 I wouldn't advise operation at 2.4 bar for too long
Most (probably all) of the bolt-on turbos couldn't maintain this boost level for more than a 1krpm band before running out of puff anyway.When you're still holding 2.4 bar at 8500rpm you know you have a decent sized blower on there
Andy
31 October 2007, 06:53 PM
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That said, not had any liner issues with the MD321's yet, but power is rarely above 500bhp, although 500ftlbs + is quite common.
It was always torque that was the liner killer for the EJ257, especially low down which i believe the 321 does!
So what's changed?
01 November 2007, 01:41 PM
#67
01 November 2007, 06:48 PM
#68
?
If you reliner a 2.5 with the 2.5 bore diameter and thicker liners for extra strength against bursting you must need to remove a fair amount of the aluminium wall that the liner fits into?
Would this also destabilise the liner?
The material where the machining is for the crankcase bolt is already very thin locally.
?
Graham.
If you reliner a 2.5 with the 2.5 bore diameter and thicker liners for extra strength against bursting you must need to remove a fair amount of the aluminium wall that the liner fits into?
Would this also destabilise the liner?
The material where the machining is for the crankcase bolt is already very thin locally.
?
Graham.
01 November 2007, 08:45 PM
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Well, no one seems to have burst a linered block, I would imagine because they are top hat liners this provides the strength where the oem liners are weakest at the top of the bore were the block bolt machining has been done.
01 November 2007, 10:36 PM
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01 November 2007, 11:22 PM
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?
If you reliner a 2.5 with the 2.5 bore diameter and thicker liners for extra strength against bursting you must need to remove a fair amount of the aluminium wall that the liner fits into?
Would this also destabilise the liner?
The material where the machining is for the crankcase bolt is already very thin locally.
?
Graham.
If you reliner a 2.5 with the 2.5 bore diameter and thicker liners for extra strength against bursting you must need to remove a fair amount of the aluminium wall that the liner fits into?
Would this also destabilise the liner?
The material where the machining is for the crankcase bolt is already very thin locally.
?
Graham.
AXIS POWER RACING- Stage 5 Motor
Last edited by jasonius; 01 November 2007 at 11:24 PM. Reason: spuelling mictstak
02 November 2007, 06:24 PM
#83
2.6 and there is a 2.8? Pistons nearly touching I should think.
The top-hat 2.5 looks a treat.
Shipping is $350, but not sure about duty and then vat on everything all the way to Gordon's treasure chest.
But still a deal! $ will soon lunge to 2.4 you see.
The top-hat 2.5 looks a treat.
Shipping is $350, but not sure about duty and then vat on everything all the way to Gordon's treasure chest.
But still a deal! $ will soon lunge to 2.4 you see.
02 November 2007, 06:49 PM
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Apparently the 2.65 will not rev very high due to the weight of the pistons, I have not seen a 2.8 but I assume the same is true for that. Boils down to whether or not your turbo will still be going strong past 8k rpm as to which one would be 'better'.
I've been eyeing up that 2.5 from axis for 6 months now, on the proviso I find a 6 speeder for reasonable cash. May have located one in which case I think a $2.08 pound may persuade me that the time is right.
I have some sti4 heads waiting for it here, does anyone know what size head gasket is required for phase 1 heads onto a 2.5 block and also do the heads need any work done to fit? I've read 2 conflicting opinions on bolting phase one heads onto a 2.5 block.
I've been eyeing up that 2.5 from axis for 6 months now, on the proviso I find a 6 speeder for reasonable cash. May have located one in which case I think a $2.08 pound may persuade me that the time is right.
I have some sti4 heads waiting for it here, does anyone know what size head gasket is required for phase 1 heads onto a 2.5 block and also do the heads need any work done to fit? I've read 2 conflicting opinions on bolting phase one heads onto a 2.5 block.
02 November 2007, 08:43 PM
#87
Get the gaskets from Axis at the same time? Ron also has a new high flow oil pump.
An S2 spec sitting in the garage here I think is £2700 based on Ron's $ numbers.
Thats 2.5/light rods and forged pistons all screwed together delivered and VAT's for £2700 Just not sure about duty before VAT?
An S2 spec sitting in the garage here I think is £2700 based on Ron's $ numbers.
Thats 2.5/light rods and forged pistons all screwed together delivered and VAT's for £2700 Just not sure about duty before VAT?
02 November 2007, 09:16 PM
#88
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Get the gaskets from Axis at the same time? Ron also has a new high flow oil pump.
An S2 spec sitting in the garage here I think is £2700 based on Ron's $ numbers.
Thats 2.5/light rods and forged pistons all screwed together delivered and VAT's for £2700 Just not sure about duty before VAT?
An S2 spec sitting in the garage here I think is £2700 based on Ron's $ numbers.
Thats 2.5/light rods and forged pistons all screwed together delivered and VAT's for £2700 Just not sure about duty before VAT?
I've pretty much decided that with the cost of shipping and new oil/water pumps and labour to install it that its worth saving a few extra pennies for the stage 5 (includes gaskets and head bolts in the price) just in case I want to go for a silly turbo and a track car down the road.
02 November 2007, 10:14 PM
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Wouldn't it be nice to get one of those stage 4 2.35L motors sent for < £2k..!
Do you think getting it sent as a gift would wash with HMC..?
Interesting that (as Graham says) the stage 4.5+ motors don't seem to have squirters..!?
Do you think getting it sent as a gift would wash with HMC..?
Interesting that (as Graham says) the stage 4.5+ motors don't seem to have squirters..!?
