Rebuild costs for an AJP
Discussion
My small knowledge on the matter as a whole can only offer the following...
TVR produced two different spec V8 blocks - one with a 4.2 litre capacity and the other 4.5. Depending on usage any engine will wear 'overbore'. This may require machining in a rebuild which, in turn, will raise the capacity of the block in question but by a miniscule 'cc' capacity.
Recently however, several respected tuners have calculated that the AJP block can stand a capacity increase to 4.7 litres and offer this as a rebuild option.
A far as I understand prices vary greatly depending on whether the owner's block is supplied as a trade or whather the 'new' block is ordered separately. Thus I suggested contacting the supplier directly and removing the Chinese whispers.
'Nuff said ??
In the current market I don't think that anyone will get their head bitten off for simply ringing and asking. These guys are intelligent human beings and often like to chat about their services. There might be another option staring you in the face.
TVR produced two different spec V8 blocks - one with a 4.2 litre capacity and the other 4.5. Depending on usage any engine will wear 'overbore'. This may require machining in a rebuild which, in turn, will raise the capacity of the block in question but by a miniscule 'cc' capacity.
Recently however, several respected tuners have calculated that the AJP block can stand a capacity increase to 4.7 litres and offer this as a rebuild option.
A far as I understand prices vary greatly depending on whether the owner's block is supplied as a trade or whather the 'new' block is ordered separately. Thus I suggested contacting the supplier directly and removing the Chinese whispers.
'Nuff said ??
In the current market I don't think that anyone will get their head bitten off for simply ringing and asking. These guys are intelligent human beings and often like to chat about their services. There might be another option staring you in the face.
Edited by Mr Cerbera on Wednesday 21st May 17:18
I would estimate at £3K - £4K labour and then bits on top.
The labour cost will obviously vary depending on the amount of things like head polishing, skimming and porting you want done, if the head bolts actually come out of the block or just snap off like most of mine did.
Attention to detail takes time.
Parts cost will vary as well, if you go the whole hog and put a billet crank (£2500) with H section billet conrods(£1800) and that sort of stuff then the cost escalates quickly, new injectors cost £800 a set, copper head gaskets(£200) and the list continues with timing chains, valves and that sort of thing.
The labour cost will obviously vary depending on the amount of things like head polishing, skimming and porting you want done, if the head bolts actually come out of the block or just snap off like most of mine did.
Attention to detail takes time.
Parts cost will vary as well, if you go the whole hog and put a billet crank (£2500) with H section billet conrods(£1800) and that sort of stuff then the cost escalates quickly, new injectors cost £800 a set, copper head gaskets(£200) and the list continues with timing chains, valves and that sort of thing.
QBee said:
In return, how big is your grin, and what kind of warranty do you get?
Grin is huge, I can't quite see the ends of it, warranty is 3 years unlimited mileage but in reality that will be 25,000 miles tops.The grin isn't just when you have the peddle all the way to the platic, it is now so tractable that it is just fun to accerate from 60 in 5th, the surge of power is intoxicating, drop it 2 cogs and things get interesting very quickly, watch the speedo on this vid the way it cranks up from 80 is quite quick.
http://www.youtube.com/watch?v=ZQv9i3GFiac
nemasis said:
just watched the vid,that was on a race track?cos i didnt see any speed that indicate full throttle at any point,bearly over 100 mph,jesus we used to test drive faster on the m55,and thats a 4.7 give me a speed 6.
Reasonable laps round the Brands indy, the main bit for speed is on the start finish straight, on most laps around 120 down there.gruffalo said:
Grin is huge, I can't quite see the ends of it, warranty is 3 years unlimited mileage but in reality that will be 25,000 miles tops.
The grin isn't just when you have the peddle all the way to the platic, it is now so tractable that it is just fun to accerate from 60 in 5th, the surge of power is intoxicating, drop it 2 cogs and things get interesting very quickly, watch the speedo on this vid the way it cranks up from 80 is quite quick.
http://www.youtube.com/watch?v=ZQv9i3GFiac
The grin isn't just when you have the peddle all the way to the platic, it is now so tractable that it is just fun to accerate from 60 in 5th, the surge of power is intoxicating, drop it 2 cogs and things get interesting very quickly, watch the speedo on this vid the way it cranks up from 80 is quite quick.
http://www.youtube.com/watch?v=ZQv9i3GFiac
Side by side against my mates 4.3 tuscan and the 4.7 is noticably quicker, especially over 90.
gruffalo said:
Parts cost will vary as well, if you go the whole hog and put a billet crank (£2500) with H section billet conrods(£1800) and that sort of stuff then the cost escalates quickly, new injectors cost £800 a set, copper head gaskets(£200) and the list continues with timing chains, valves and that sort of thing.
don't know where you buy your gold plated injectors from? more like £300 including taxes from the states.Prior to the rebuild I have already had fitted the stainless steel cooling pipes on and the silicone hoses, replaced the fuel lines fitted the ACT large bore exhaust with the new quiet back box and the balanced headers, important if you want to release the engines potential.
From memory the rebuild consisted of:
4.7 pistons and wired liners from Power
Copper head gaskets
Every nut bolt washer and seal replaced
Green top Bosch injectors
heads skimmed 30 thou to increase the compression ratio
new valves, seats and guides
ports cleaned from casting residue ported and polished
timing chains, guides, sprokets and timing cover bearings
oil and water pump rebuilt
billet steel crank
H section billet steel con rods
light weight flywheel with new clutch
Gearbox rebuilt with all new Quaiffe internals to take the extra power
Diff rebuilt to take the extra power
Piston skirts were coated in something to reduce heat and friction in the bore
Basically the only original bits are the block, heads, cams, cam bearing caps and main bearing caps. The parts bill from Power was north of £7,500 which only cover the injectors, pistons, liners, bottom end and head gaskets, all the other bits were on top.
Full remap done at Power, when I picked it up Dom's words were "Jason sure knows his stuff, he has built you a good one there" I believe that to be high praise.
It was just a rebuild but every thing was done to maximise reliability, it takes a day to rebuild the pumps, lots of time was spent on the heads no detail was over looked but that seems to be the standard way Jason works.
I had an instructor in the car at Cadwell a few weeks ago his comments are the second to last post on this thread http://www.pistonheads.com/gassing/topic.asp?h=0&a...
his comment while in the car was "in my line of work you get used to fast cars but wow this thing has some real shove doesn't it"
All in all I am 4K miles into this engine now and it is starting to loosen up and feel better day by day. I am over the moon with the results, once warm it is mechanically very quiet obviously it sounds like a bag of spanners when cold:-)
From memory the rebuild consisted of:
4.7 pistons and wired liners from Power
Copper head gaskets
Every nut bolt washer and seal replaced
Green top Bosch injectors
heads skimmed 30 thou to increase the compression ratio
new valves, seats and guides
ports cleaned from casting residue ported and polished
timing chains, guides, sprokets and timing cover bearings
oil and water pump rebuilt
billet steel crank
H section billet steel con rods
light weight flywheel with new clutch
Gearbox rebuilt with all new Quaiffe internals to take the extra power
Diff rebuilt to take the extra power
Piston skirts were coated in something to reduce heat and friction in the bore
Basically the only original bits are the block, heads, cams, cam bearing caps and main bearing caps. The parts bill from Power was north of £7,500 which only cover the injectors, pistons, liners, bottom end and head gaskets, all the other bits were on top.
Full remap done at Power, when I picked it up Dom's words were "Jason sure knows his stuff, he has built you a good one there" I believe that to be high praise.
It was just a rebuild but every thing was done to maximise reliability, it takes a day to rebuild the pumps, lots of time was spent on the heads no detail was over looked but that seems to be the standard way Jason works.
I had an instructor in the car at Cadwell a few weeks ago his comments are the second to last post on this thread http://www.pistonheads.com/gassing/topic.asp?h=0&a...
his comment while in the car was "in my line of work you get used to fast cars but wow this thing has some real shove doesn't it"
All in all I am 4K miles into this engine now and it is starting to loosen up and feel better day by day. I am over the moon with the results, once warm it is mechanically very quiet obviously it sounds like a bag of spanners when cold:-)
Edited by gruffalo on Thursday 22 May 07:57
Mr Cerbera said:
nemasis said:
MMMMMMM and the 'respected tuners are'? the AJP8 is good to 5.0 litre not 4.7 i mean peter wheelers racing tuscan was 5.0 litre, sorry i digress , the respected all knowledgable tuners are
Well, Mr. f
king-know-it-all,Why don't you give us the benefit of your experience instead of sniping at others who use this forum to try and help owners ?
W@nker !
Phil James (Boss Cerbera) has a 5 litre one but, as I have been informed, the power increase is not really any more than a well built 4.7.
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