Project engine options

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Been thinking about engine options for the coupe project again. Recently been looking at the vauxhall ecotek v6 (omega etc), spotted one in the breakers yesterday with manual box, quite interesting. Looks pretty compact, should easily fit in a p6 bay.

Another option, Jaguar AJ6, straight six, all alloy, several engine size options from 2.9 to 4.0 (4ltr is 235bhp 290lbft). There's a guy over on the 800 forum that has been working on one recently and he's sent me some measurements, so I'll compare with the P6 bay, may be too long ?
 
Those Ecoteks are supposed to be pretty good lumps, it'd be great to see one under a P6 bonnet! The thing that'd scare me off with that engine would be the electrics side of things... But that's because i'm hopeless with electrics- To me anything that doesn't require rods and levers to operate is just plain witchcraft! But i'm sure the wiring loom could be adapted to work in the P6, or maybe aftermarket management like Megasquirt etc.

What is it you want from the engine? More power or just something a bit different? I reckon a Saab 2.16V Turbo would be a nice unit to slot in. Very cheap and 200bhp. A Rover T16 for the same reasons :)
 
Well, I guess I'm after a more modern injected engine, with good fuel economy, and potentially more power, however that isn't a prime concern.

The main thing is that I like messing !, as you say, something a bit different, but it also has to be cheap and in reasonably plentifull supply so that parts aren't a problem. That is one of the reasons I was looking at the ecotek, you don't get much more common than a vauxhall engine ! The electronics don't scare me, I developed my own ecu about 15 years ago, and fitted it to my 2.2tc, more recently I converted my mk1 820 from the early M16 engine to a T16 with matching ecu etc which works really well.

I have built up a small "stock" of T16 engines, due to us running 2 820's. It's pretty much entirely Rover design so would keep the car all rover. Plus I do know them very well, maybe I should try a bit harder to find a gearbox !
 
Now don't encourage him with the T16 option! And its not a Rover, Richard - it's a linear decedent via the O series of the dear old BMC B series! I have actually driven a RWD T series - Morgans have them! I'm pretty sure they use an R380 and bellhousing from a Sherpa.

My list in prefence order (and it's changed a bit over the long course of this discussion!) is:

Volvo "compact six" ex 960
Volvo 5 / Audi 5 /VW van straight 5 / VW van VR6
Land Rover TD5 with JE Engineering mod pack
Vauxhall / Saab Low Pressure Turbo 4

Of these the Volvo six, VW Van 5 and LR TD5 have the merit of coming with RWD layouts for the gearbox. I quite like the idea of the Omega V6 but I'm very nervous of width issues. Perhaps also it just isn't a classy enough motor to live in a Rover engine bay!

The other major consideration is of course weight! I suspect the all aluminium Volvo six wins hands down on this, while the Vauxhall could be a bit of a porker compared to the Rover 4.

Chris
 
What about a look at the Mazda Mx5 or BMW engines, both are rear wheel drive and you will have a range of ecu ugrades.

Colin
 
DaveHerns said:
What about a gas turbine ?

Hmmm, can't say I saw many of them in the scrap yard ! :LOL:

I suspect it's going to come down to the usuall issues, price, availability and size....
 
Mitsubishi GTO 3.0 lite V6 , then you could have the option of a 4WD Rover coupe and 320 Hp plus a well worn upgrade path to 700 odd BHP with 6 speed box.

Graeme
 
I wonder if the Vauxhall ecotec is the same as the Holden one? The Early V6 Holden Commodores ('89-'96ish) used a 3.8 litre Buick V6 that was a direct descendant of our favourite V8. (Apparently the timing covers are interchangeable) And so they are supposedly a fairly straight swap into a P6B. They have a fairly basic (read crude) EFI system and 4 spd auto or 5 spd manual 'boxes and have between 195 and 230 bhp and masses of torque. After '96, Holden went to an Ecotec motor that was a significant development of the old one.
I think it would be preferable to replace a four with a four so I think:
Toyota 3SFE. As fitted to billions of Coronas/Celicas/Camrys/Caldinas etc throughout the '90s. Not common in RWD but it did happen. Available in 1.8, 2.0 and 2.2 sizes with about 140bhp standard but lots of room to go up. (Turbos etc) Plentiful and ridiculously reliable. Also the 3SGE from the Toyota Altezza, variable valve timing and a 6 speed gearbox! Or...
Nissan SR20. As fitted to Bluebirds, Avenirs, Serenas and RWD in the Sylvia/200sx. About 160bhp standard with turbo options available and virtually bulletproof.
 
I can see the attraction of the Volvo straight six powerful & silky smooth but sadly prone to head gasket troubles more often than not leading to more major problems, many a tasty 960 has been broken for bits due to this :cry:

But the Volvo five cylinder is a superb bit of kit I owned an 850 a few years back with the 2.5 20 valve non turbo & it was fantastic & lets face it the police use them in T5 form & very rarely break them even with that amount of abuse. My mate is a police mechanic & he says they only ever seem to go wrong as a result of things like radiators getting burst when pursuits get a little rough. Having said that there have been issues with porous blocks on some of the latest spec engines.

Regards Colin
 
Yeah, I was looking at the 5 cylinder, all the T5's are front wheel drive, do you know of any rwd gearbox options ?
 
Richard,

The Volvo 960 engine is a straight six 2.5 and 3 litre known as a 'White Block'. They're RWD and most ZF HP22 4 speed auto. The White block was a modular design which gves us the 5 cylinder engine for the 850 and V70 and a 4 cylinder one for the s/V40 in FWD formats.

As far as I know the block bolt pattern at the clutch end wasn't changed meaning you should be able to bolt a RWD gearbox to it very easily and I have seen a Caterham Seven with a T5 engine so there is a precedent for this. As 2 diesels said the sixes seem to blow headgaskets and occasionaly have porous blocks but presumably if you were buying a 2nd hand one it would be rebuilt first anyway so a blown headgasket won't be an issue.

I think the six would be too long but the five would be perfect. There are lots of versions of them and not all were turbocharged either. There's a 2.5 10valve 5cylinder enginefrom the 850 which is probably the pick of the bunch for a nice usable every day engine. Lots of low down torque and 140hp, 20valve versions have a similar torque figure and 30hp more but further up the rev range so not so well suited to cruising.

If you do want a turbo engine though there's T4 engine (2 litre) in the S/V40 which is small and light and has lots of tuning potential. Not as many around as T5's but then not then not as sought after either.
 
The zf autobox just came with 740 turbos or 940 diesels I think.. (VW diesel engine)
The volvo 2.5/3.0 engines came with an Aisin Warner 30/43 auto gearbox in the 960. Same as Lexus and Supra but with more suitable stallspeeds. You can get "manual" controls for these gearboxes from here: http://www.latentsolutions.com/suprastickuv.html
or http://www.tciauto.com/Products/Electronics/default.asp

The manual 5 speed only found on 2,5L, is a Getrag developed transmission.

The volvo sixes seem to have been improved on some points during '94(they came on the market '91).
 
Here is my P6 from hell story...Bill Cuda used to build Lotus Elans and became reputable in the Valley for his expertise, and comptete insanity as to the extent of the efficiency [ie cu in to horsepower ratios]... so one fine fall day I approached him as he was installing a rodded mil into a Lotus 7, he finally finished the job as I stood by BSing with him and fired 'er up and the torque shook the whole shop and my hearing became numbed as it fired for the break-in as a virgin/for the very first time...oh what a sound; so I asked, "hey Bill, can you do that to a Rover 10:1 compression 2000TC engine [fedspec]? "Sure." "I would need some cash in advance to build the cam and shave the head, bring it on...I will guarantee a compression ratio of 13:1 & we'll have Conrad there top the pistons on the miling machine too, Oh, you' ll have to go to the track at Lancaster for the fuel..." OK then its a deal I'll bring buckage short block & head all apart and you can start at your convenience...btw I have new pistons - matched set for the finale..." says I. And so this emerged and the EuroStyle 70 TC is rebirthed with some real muscle but in no way shape or form street legal...but so fast that on the way home three months later I blew off a 911 at Sunset on the backroads home into the Topanga Canyon off I5. Two years pass - I find another Rover guy outside of Lancaster. No, not Lancaster in the high desert of California, rather just outside of Lancaster, PA. in the quaint town of Strasburg, the guy had a traditional bank barn full of stuff, cars, parts wheels, TCs, 2000's 3.5Ses and plenty of space for more...John Schein was his name so I told him about the rod, not streetable but non the less, fun to drive should you dare to take it out back roadin on some moon lit switchback late at night with the beams off and only the low fog to light the way against the reflections of the fog-lines at the road edges...John thought for sure then that I was spirited in the Viking cause and offered a place in the back to launch the beast. Later, One night It was fall again, many moons since the beast's birth, I slipped out of the barn onto a gravel road, across the pastures and into the night I went - that night was like the legend of sleepy hollow, the roads I mean, no headless horseman even though it was near all hollows eve, but the car did warm up nicely in the cool air; a great mixture bleed through the modified HD8's and the roar of the motor sounded like my 3500 but more camy...twice as fast as it sped on.
 
What about a small block chevy!! I have pals with these in a Triumph PI an Opel Kadett Coupe and S1 Capri .... more power, cheaper parts and what a sound!
 
Might sound a little silly.... but if you have the 'fix' a 1.8 VVC K series might work. They have the 1.4 in the caterhams so RWD shouldnt be a problem?
 
K series... please, underpowered and destinied for imminent failure, usually in a hot warped form. They are rubbish... I liked the Rover 75, a leathered out one was a regal looking machine .... but that engine, as with all ie 25, 45, mgtf, freelander was a turd. Even a KV6 ... you can see why people plumped for the X Type as a substitute.
 
I had a KV6 75 - really was a lovely smooth engine. Sold it because of the up-coming engine out service for the cambelts... if you have to remove the engine to service it I think it's taking things a bit far... I Had a rover 200 for a bit with a 1.4 K series in it and thought it was a good engine. If the head gasket goes the trick is to use the later version off a freelander...
 
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