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Sorry that post was a little rude. No offence ment :duffer:

 

 

no need to apologise mate, think youve been very patient through this thread! :duffer: :tongue: :smash:

So are we looking at 3 Grand if your turbo's go? And the same ish for a V8 engine swap?
No. £3k for engine rebuild and new tubs (although price is completely dependent on what sort of rebuild and tubs you go for).

 

Zen gararge does New uprated Tubs for £2k fitted. Pay just over half that for recon originals fitted, depending on where you go.

 

We have a distinct lack of Turbo replacement info on this forum...Im not sure wether its down to a lack of knowledge (I dont think so), or the fact that nobody who knows what they are talking about has actually taken the time to put hands on keyboards. An FAQ on turbo options would be fantastic !

.....what is the 4.5 out of ...............

 

Mark

 

 

The car that this engine is fitted in as stock is not available here in uk.

It is sold in Japan and America.

 

These V8 engines are what the Indycar/Champcar 10,000+ rpm 750+hp monsters are based on i believe :D

 

The bad thing about that is they all play their tuning cards close to their chests as they dont want to give anything away to the opposition. Quite understandable really.............

+ Yes Mark I've have a bad experience, but that aside the parts alone to do the job properly if your going forged pistons, balance the crank, new oil/water pump, new hoses, new engine harness, new Turbos, gaskets and if you up grading them you'll need better coolers. The you don't have any change from £3k + engine out, stripping, rebuild and engine back in. How much you going to charge?

 

The beauty with turbos we sell Mark are that they bridge the gap between an upgrade when people can afford it or a stock replacement.

 

With these turbos the stock injectors run out of steam at 12 psi, but even at that low psi they are twice as good as the stock turbos as they maintain there boost levels past 6000rpm and have stock lag.

 

When and if people want to upgrade they can, as they can hold 21 psi :) and after examining revised figures can produce 420-430 rwhp.

 

The V8 conversions you talk about whilst admirable exciting prospects are not as easy and cost efficient as you make out.

 

Also whilst all big V8's are different, you are also going to increase your petrol bill, because you cannot turn off the power, with modern turbos installed you find improved fuel consumption.

 

With the turbo upgrade, the only thing that would be nice to have is forged pistons (which I even recommend on a stock rebuild), but I am not going to wave a big stick at customers and tell them to rip a perfectly good engine apart to put in forged pistons.

The beauty with turbos we sell Mark are that they bridge the gap between an upgrade when people can afford it or a stock replacement.

 

With these turbos the stock injectors run out of steam at 12 psi, but even at that low psi they are twice as good as the stock turbos as they maintain there boost levels past 6000rpm and have stock lag.

 

When and if people want to upgrade they can, as they can hold 21 psi :) and after examining revised figures can produce 420-430 rwhp.

 

The V8 conversions you talk about whilst admirable exciting prospects are not as easy and cost efficient as you make out.

 

Also whilst all big V8's are different, you are also going to increase your petrol bill, because you cannot turn off the power, with modern turbos installed you find improved fuel consumption.

 

With the turbo upgrade, the only thing that would be nice to have is forged pistons (which I even recommend on a stock rebuild), but I am not going to wave a big stick at customers and tell them to rip a perfectly good engine apart to put in forged pistons.

 

Mark I hear what your saying and I've seen your pricing structure (too late for me unfortunately) and you seem very reasonable, However the undenyable problem is that most of these engines are getting tired now and most people that have uprated turbos think, Wahay my turbos won't pop and up the boost. The result is often that the follow up bill is so great that the car is scrapped/ broken for bits and sold.

 

I've been on and around these cars now for 6 years and I'm seeing this more and more. As a club we should be seriously talking about the pitfalls of tunning tired engines etc.

 

I know that a well cared for 130K will be better than a 60K engine that hasn't been cared for. The problem is how many people here have a good engine heath check and how can you tell if the valve stem seals are about to go or if the new turbos are going to force oil past em etc etc. So if the car has done more than 70K and the lump is out isn't wise to do these things and shouldn't we be stait about it.

 

The figure I've quote is as a result of personal research and that of others doing this and includes completely overhauling the V8 lump prior to instalation and the thing that has impressed me are the costs and the torque to BHP figures. The simplest way to show that the V8 convertion is cheeper is this.

 

Pistons for the Z engine cost 4 times the price of pistons for any of the V8's mentioned.

The lower plenum gaskets for the Zed cost as much as a complete gasket set for the chevy or the Ford

The valve and stem sets for all three V8's I've mentioned are cheeper by a long way than the Z.

Top quality Upgraded Manifolds can be purchased for around £300 per pair

Z it would cost between £600 to £900 each

Then of course if you just recon the engine the V8 will cost about the same in labour time and half in parts

And here's the biggy There is 1000 to 3000 pounds worth of Tubos not to include. Hence big cost savings

 

The there is the weight savings as all are lighter that the standard Z lump. Even lighter than the standard NA especialy the Ford and looking at the fuel consumpsion figure for the 470BHP Monaro or the 460BHP MG Sports car I would say that fuel consumsiom would be about on par with a Z running standard injectors with a remap and 14.5psi of boost.

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