4.7 upgrade price
Discussion
.its not that I begrudge paying the premium for the 4.7 just like to know whyJust call APM for the numbers. Andy wont give you a salesman type reply, just what will be changed, additional mapping/engine work around that, what you'll get at the end and what it will cost.
Was told there were only 4 kits left in mid-Dec, and unlikely there will be another production run, so you may not have a choice in the end!
The "why" is 490+ hp!
Was told there were only 4 kits left in mid-Dec, and unlikely there will be another production run, so you may not have a choice in the end!
The "why" is 490+ hp!
Edited by djstevec on Friday 28th December 10:06
There is only one place to go for a 4.7......APM.
The 4.7 kit is a limited run and isnt that much more expensive than a 4.5 upgrade bearing in mind the exclusivisity and additional power.
Have you out grown then 370bhp of a 4.2 and do you need nearly 500bhp? Or would 400+ on a 4.5 do you?
If you can afford it then go for it.
The 4.7 kit is a limited run and isnt that much more expensive than a 4.5 upgrade bearing in mind the exclusivisity and additional power.
Have you out grown then 370bhp of a 4.2 and do you need nearly 500bhp? Or would 400+ on a 4.5 do you?
If you can afford it then go for it.
emailed andy at apm several weeks ago regarding 4.7 kits when the shelf stock has run out it will be a case of ordering if and when due to cost. so dont think its a limited run will just take longer ,as for performance gains would it be wiser to spend £8k to £10 on a 4.7 upgrade which will give a considerable hp increase or £3K ish on an unknown hp icrease (tuning the 4.2 that is).but what im trying to get at is for instance tvr power quote £5700 including vat for the 4.2 to4.5 upgrade and £8500 plus vat for the 4.2to4.7 upgrade now unless my calculator has broken thats near as dam it £3200 differance in cost for correct me if im wrong and i hope i am the same sort of work required .just trying to get my head around the £ differance even though i agree with gazza its worth the extra cost
andrewlloyd said:
Emailed Andy at APM several weeks ago regarding 4.7 kits when the shelf stock has run out it will be a case of ordering if and when due to cost. So dont think its a limited run will just take longer, as for performance gains would it be wiser to spend £8k to £10k on a 4.7 upgrade which will give a considerable hp increase, or £3K ish on an unknown hp increase (tuning the 4.2 that is).
But what I'm trying to get at is for instance, TVR Power quote £5700 including vat for the 4.2 to 4.5 upgrade and £8500 plus vat for the 4.2 to 4.7 upgrade. Now unless my calculator has broken that's near as dam it £3200 difference in cost for correct me if I'm wrong and I hope I am the same sort of work required. Just trying to get my head around the £ difference even though I agree with gazza its worth the extra cost
£8,500 * 1.2 (VAT) = £10,200 - £5,700 = £4,500 difference. But what I'm trying to get at is for instance, TVR Power quote £5700 including vat for the 4.2 to 4.5 upgrade and £8500 plus vat for the 4.2 to 4.7 upgrade. Now unless my calculator has broken that's near as dam it £3200 difference in cost for correct me if I'm wrong and I hope I am the same sort of work required. Just trying to get my head around the £ difference even though I agree with gazza its worth the extra cost
My guess on the cost uplift is the R&D required pre-production, test batches and engine testing, limited production run giving no economy of scale. I have seen the pistons and they are bloody lovely bits of kit, lighter than my 4.5's with some very intricate milling to the underside - Im sure theres a technical name for it!
490Hp is awesome I agree, Id love a 4.7, but a 4.5 with 420hp (ish) is more than enough for my quite limited talent and my anticipated use for the car, ie not racing, sprinting, hillclimbing or many track days, so I couldn't rationally justify another £5-6k on top of my current £4.5k rebuild, for 70hp or so.
Thats also before I found out my chassis issues!!
djstevec said:
£8,500 * 1.2 (VAT) = £10,200 - £5,700 = £4,500 difference.
My guess on the cost uplift is the R&D required pre-production, test batches and engine testing, limited production run giving no economy of scale. I have seen the pistons and they are bloody lovely bits of kit, lighter than my 4.5's with some very intricate milling to the underside - Im sure theres a technical name for it!
490Hp is awesome I agree, Id love a 4.7, but a 4.5 with 420hp (ish) is more than enough for my quite limited talent and my anticipated use for the car, ie not racing, sprinting, hillclimbing or many track days, so I couldn't rationally justify another £5-6k on top of my current £4.5k rebuild, for 70hp or so.
Thats also before I found out my chassis issues!!
My guess on the cost uplift is the R&D required pre-production, test batches and engine testing, limited production run giving no economy of scale. I have seen the pistons and they are bloody lovely bits of kit, lighter than my 4.5's with some very intricate milling to the underside - Im sure theres a technical name for it!
490Hp is awesome I agree, Id love a 4.7, but a 4.5 with 420hp (ish) is more than enough for my quite limited talent and my anticipated use for the car, ie not racing, sprinting, hillclimbing or many track days, so I couldn't rationally justify another £5-6k on top of my current £4.5k rebuild, for 70hp or so.
Thats also before I found out my chassis issues!!
So it was my calculator
h16abl said:
So it was my calculator
h16abl said:
Sorry was told about 460hp with gas flowed head(extra) for the 4.2 to 4.7 so not sure where everybody's getting 490+hp from . Probably would need more In depth work but any things possible all depends on the depth of the pocket and the size of your kahoonas
just to clarify the figures were 460hp/420lbft(to round them up) on a 4.2 to 4.7,flowed inlet manifolds, stock heads(unflowed/unskimed), stock exhaust manifolds and cats fitted. The 490+ figures were from 4.5 induction, raised cr,race cams, different exhaust.hth andy
jamieduff1981 said:
Is it true about the availability of 4.7 kits Andy? I haven't even bought mine yet (seeing a 4.5 tomorrow) but if it does need a rebuilt at some point in the future I'd most likely want to upgrade then if the parts were still available.
the kits will still be available to order there will be a slight price increase on single orders and a longer lead time as opposed to being on the shelfandy
APMAUTO said:
just to clarify the figures were 460hp/420lbft(to round them up) on a 4.2 to 4.7,flowed inlet manifolds, stock heads(unflowed/unskimed), stock exhaust manifolds and cats fitted. The 490+ figures were from 4.5 induction, raised cr,race cams, different exhaust.
hth andy
Thanks for rescuing the thread andyhth andy
think looking at the thread your gonna have to restock on 4.7 kits . Will have to start a thread to see who's interested . Any takers out there form a queuejackwibble said:
£7k + Vat for 60-90 bhp mmmmhmm sounds expensive unless your motor is blown, buy a good 4.5 get a re-map and big bore system 400+bhp got to be enough unless the money is burning a hole in your pocket.
i have to agree to a point if you have a perfectly healthy engine yes, however i've heard of 4.5 rebuilds in excess of 5 figures, and when i've been asked about 4.7s convertions always said it's more viable if you need engine work anyway, if you add a short induction kit/act manifolds/mapping to a stock 4.5 how much does that cost pounds per gain? i've been honest with anyone who has asked on the kits (probably why i have got kits on the shelf)andy
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