RV8 Engine Weight

[900T-R]

Over here in The Netherlands, the Westie importers have developed a version with the Ford Duratec V6... could fit the bill nicely: lighter and more compact than even the RV8, nice sound and especially in the older 2.5 guise dirt cheap from scrappies, Fleabay et al as sales reps in a hurry do what they're best at...

[The Black Flash]

900T-R said:

Ford Duratec V6... could fit the bill nicely: lighter and more compact than even the RV8,

I've got a ford document here which quotes a weight of 205Kg for the duratec 30 - that's 450lb! Light it aint...otherwise it was looking like just the thing.

Rev-erend - Why not a Hyabusa? Well I don't want a bike engine as I want to be able to do longish trips in the thing. I know, awkward aren't I?

detees - hadn't considered an Rv6, cheers I'll look into it.

Been doing some more research today, and am currently wondering about an alfa v6...

[The Black Flash]

Heh. A quick google reveals this: http://www.race-cars.com/engsales/other/1114952060/1114952060ss.htm 

race-cars.com said:

Cosworth DFV 3000cc

Serial Number: N/A
Condition: Excellent
Price: £40,000 United Kingdom Pounds

I think we have a reason!

[900T-R]

The Black Flash said:

900T-R said:

Ford Duratec V6... could fit the bill nicely: lighter and more compact than even the RV8,

I've got a ford document here which quotes a weight of 205Kg for the duratec 30 - that's 450lb!

Fully dressed, I might hope?

[rev-erend]

Don't know why but there is another engine that you really should consider :

The TVR Cerbera V8 - available in 4.2 or 4.5 litres..

It's very light, very compact and there are a few regularly for sale.

[rev-erend]

Here is one :

http://www.pistonheads.com/sales/540643.htm

Re-builds at about 60K miles seems pretty OK to me..

Edited by rev-erend on Thursday 12th June 15:08

[gofasterrosssco]

Toyota / Lexus 1UZ-FE. 4L, 32v, quad-cam

Relatively light - circa 180kg (whats that, about 400lbs..?) Maybe scope for improvement by removing A/C and power steering units.

Standard 250hp, but easily tunable with reasonable aftermarket support (but nothing to RV8 or LSx levels)

Cheap as chips, but very durable

Sounds good even in standard form

Edited by gofasterrosssco on Sunday 15th June 02:54

[LS7427ci]

I do know to a custome build light weight LS2 engine, 450+ hp that weights in at 370lbs 170kg ish??? with a price tag of under £7K complete headers as well

Edited by LS7427ci on Monday 16th June 12:59

[The Black Flash]

gofasterrosssco said:

Toyota / Lexus 1UZ-FE. 4L, 32v, quad-cam

Relatively light - circa 180kg (whats that, about 400lbs..?) Maybe scope for improvement by removing A/C and power steering units.

Standard 250hp, but easily tunable with reasonable aftermarket support (but nothing to RV8 or LSx levels)

Cheap as chips, but very durable

Sounds good even in standard form

Edited by gofasterrosssco on Sunday 15th June 02:54

I've looked long and oh so hard at the uzfe. They are perfect in virtually every way, except for the size of the damn thing. I've had discussions with Dax about fitting one, and although technically probably possible, it sounds as if bits of the heads would end up sticking out of the bonnet, which I don't really want.
Bloody shame though, I thought I was on to something there.

[The Black Flash]

LS7427ci said:

I do know to a custome build light weight LS2 engine, 450+ hp that weights in at 370lbs 170kg ish??? with a price tag of under £7K complete hearders as well

That is good on a bhp/pound basis, but I was thinking more of £3-4K, rather than 7. That is pretty lightweight though.

[The Black Flash]

Still thinking of one of these:


24V 3.2L v6, 250hp, about 375lb but I think that includes AC and PAS. Well oversquare so should be nice and revvy, redline at nearly 7000.
Looks and sounds amazing as stock. Aftermarket not great but there is some stuff, 300hp is doable without straining things.

Somebody put me off, there must be something wrong with 'em.

[Boosted LS1]

BF, I work with the cossie v6, lsx and rovers. Lsx is very good but imo all the extras increase the cost significantly but it does make a very good long term investment. I prefer stand alone ecu's as anybody can map them. The cossie is similar weight to lsx so not much use unless you put turbo's onto it. That said, cossie v6 stuff isn't to expensive and you can get some bargains. Your cheapest bang per buck is the rover v8 so long as it's nothing to exotic, oh you'll need a blower or turbo. Then if you stuff it you get to transfer all the power producing parts onto the next short engine. You could source a 3.9 or 4.0 for reasonable money and boost it through a carb or plenum.

[cymtriks]

The Rover V8 is not light weight, it tips the scales at circa 440lbs.

It's only light compared to the massive iron blocked stuff that was around when it was first designed, which is probably how the myth started. By todays standards it's down on power and overweight for its capacity.

[900T-R]

cymtriks said:

The Rover V8 is not light weight, it tips the scales at circa 440lbs.

It's only light compared to the massive iron blocked stuff that was around when it was first designed, which is probably how the myth started. By todays standards it's down on power and overweight for its capacity.

All the 'alternatives' are heavier, tho' - not in relation to their capacity or power, but still, heavier.

[Boosted LS1]

cymtriks said:

The Rover V8 is not light weight, it tips the scales at circa 440lbs.

It's only light compared to the massive iron blocked stuff that was around when it was first designed, which is probably how the myth started. By todays standards it's down on power and overweight for its capacity.

I agree on both counts. As the engine's gone up in capacity it's got heavier. That said a lot of stuff can be shed if the car's being used in a retro installation.

[LS7427ci]

An LS2 comes in at the same weight and nealy twice the power 400-450hp with cam, (cable) 92mm throttle body and stand alone ECU and harness £4500 to your door, got to be the better option over a Rover?????????

[Boosted LS1]

^ I agree in many ways with you but have found that many rover owners haven't the budget to pitch in with an lsx whilst losing out with the left over rover stuff. The lsx means changing a lot of other parts, gearbox etc, not just the engine. So whilst it's a superior product it's a far bigger hit on the wallet. In the long term it's certainly more viable especially if you own a car without an engine. For me it would be lsx everytime but I haven't got a tiff engine and gearbox to dispose of.

[LS7427ci]

True but your not long into similar money if you blow your rover have to take it out and back in.
Transmission wise I'd run a GSR or G5R 4 or 5 speed mag case wide gears, lots of choice of ratios, a good built box, extremely strong a buy it one time deal, cheaper than a built T56 (alough I believe you cant fit one in a TVR???) the two box's above would fit, a shorty version is 18" with bell and shifter.
There are a few other bits, clutch etc but if your looking for more HP's then these are things you have to change regardless.

[deetes]

LS7427ci said:

Transmission wise I'd run a GSR or G5R 4 or 5 speed mag case wide gears, lots of choice of ratios, a good built box, extremely strong a buy it one time deal, cheaper than a built T56 (alough I believe you cant fit one in a TVR???) the two box's above would fit, a shorty version is 18" with bell and shifter.

'Scuse my ignorance, but what tranny is GSR or G5R from?

[Boosted LS1]

^^ I had a turbocharged TR8 with a 4.5 engine, pre crossbolted era. Gearbox was a stock lt77 which had been rebuilt by Ken Tomlinson as a matter of routine. It never failed me. That said in low gears I'd spin the wheels so that probably saved the box. I had a 2.84 diff so maybe that also spread the torque and helped the box. Boost was a modest 7 psi flicking to 9 during gearchanges. Compression was 9:1 static.