GOT2BZETEC

Anybody know anythink baout them mainly the 3.5 out of a sd1

rsnissan

iTrader: (9)

what do you need to know?

RichardPON

Same question...........

GOT2BZETEC

Well i have a 2.9 Tanus with 2 inch manifolds 3ltr carb kent cams ported and gas flowed heads in my stock car, was wonder how the v8 would compare(i found on in a field) also the are all alloy arnt they? so how much lighter, i was thinking of getting it puttin it in my sierra ( dont worry fitting aint a problem, will also be mid mounted). Then i found 4 su carbs on a boxxer manifold, along with some big exhaust manifolds what sort fo power and torque? Also what cams are available and what difference acn they make. Thanks

WD Pro

None of this fact, only what I have been told :

Same weight as a YB as its alloy block. Not to good power as standard, quite 'cheap' to get 240 ish (cam, headwork and 4 barrel). Very expensive to get 300+, check out John Earles (JE) engines.

Got told the above as I was comparing to a cossie engine for a kit car build.

Cheers,

WD

R4N SS

iTrader: (6)

speak to Tiny or aRSe - they know there V8s

PGT

if you want a v8 get an sbc - much cheaper per hp than anything else and they give so much torque that it doesnt matter what they weigh

Anonymous

Rover v8 in a sierra is a great idea, Tiny on here has one (and fuck me is it a good example) and it makes me want to sex wee every time i see it.

aRSe

Make sure you're standing at the other end of the car park on Wednesday

Pretty much boils down to how much you're prepared to spend.

tiny

As above, rovers are cheap up to about 250=260, brake then there big bucks, would still be better than the v6 youve got, and about half the weight, but you wont
beat a sbc or ford for bhp per pound spent, at the mo you can pick up a brand new
540 bhp sbc crate motor for 7495 dollars, even with shipping and duty thats gona
be under 5 grand Its deffo worth doing if youve got the lump already, what have you got to loose.

RWD_cossie_wil

iTrader: (9)

what other big v8's are avaliable???? are there any good strong 4 valve per cylinder v8's knocking around for sensible cash?? and do sbc's take a pair of turbos fairly easy??

GOT2BZETEC

No this is for stock cars i want small spend, what bhp do you think my v6 will be running i wanted about 250 out of a v8! so how much you think to spend?

tiny

You can buy a World products 632 ci crate motor pushing out 900bhp na but its
only 2 valves per cylinder, and it aint cheap at 17000 dollars, still under 10 k though you wouldnt be able to turbo it though as is the compression is wey to high. they do a 454 sbc 600 bhp with 605 fbt with a comp ratio of 10.1 that with a
piston or rod change, might be suitable for turboing how the fook youd get the
power down, is mystery to me ? and with the kind of power above, why would you
need to put turbos on ? not many boxes could take that kind of grunt for long, or
diffs

tiny

I think your v6 is prob 190 ish, and firstly with the rover you have to establish exacly wich enugine it is if its one out of a p6 standard they were only 150 bhp
the later vitesse cars had up to 190, once you know what youve got, go from there
all the usual tuning applies cam heads exaust, you could use the 4 carbs youve got
allready. I recon buy the time you strip it down, rebuild it with the parts your going to need, you ant going to have much change out of 1200 quid, unless its got a good
pair of heads on it allready, then youd save about 500 quid

aRSe

I wouldn't guess at the power your V6 is putting out, depends on the build spec, and it's state of health!

To get your 250 hp, if your LUCKY, a Ł1k COULD get you there. Though, if your anything like as lucky as myself, the block will need to be bored oversize .020", cost of boring & honing, new (cast) pistons, and having the pistons put on the rods (standard type are an interfearance fit) will be circa Ł400.
If the crank journals are ok, a new set of main and big end bearing will set you back Ł42. Though if the crank needs a re-grind, most i've seen do, an exchange re-ground (i think it's + .010") crank is Ł144, which includes the cost of new main bearings. I would definietly use an ARP main bearing stud kit, as the main bearing caps have a tendancy to fret a high RPM when the standard bolts are used, add another Ł60 for these.
You will need to source some worked heads, nothing too fancy, 'Real Steel' used to sell a pair of stage 2 heads or Ł550. They were skimmed for flatness (not cc'd), the rocker pedestalls were machined parralell to the head face so you would get a more even pre-load on the lifters when the valve train is installed. I think they had a 3 angle valve seat, and the ports were lightly releaved behind the head of the valves. You could pick a similar set up second hand for a couple of hundred pounds, but what state will they be in, play in the guides, pitted valve seats....?
Although the cams for the RV8 are reasonably cheap, on average Ł125, the machining work required to the heads, to accomodate the additional lift, and double valve springs etc, can push that figure way over that.
Obviously there are other costs involved in a rebuild, though, those usually cover the main expense.
Give 'Real Steel' a call on 01895-440505, have a read of their catalogue, it'll give you some power figures for combinations they have put together, as well as parts, and machining costs. TAKE NOTE, i use 'Real Steel' as a parts supplier, i have had issues regarding their technical advice, i'll leave you to make your own choice.
Chances are you will end up around the Ł2k figure, and then you will have to install it, and the end result, will depend on the standard of that.

GOT2BZETEC

Thanks for the info, the V6 is running very nicely on of the reasons im not so sure baout the swap, but the problem is that i cant see any further places to go with it, to get reliable power, the guys winning have Rover V8's and i was looking at thease i think the weight of my 2.9 is a draw back also will the carb i have on be big enough, like i said it does apper to be running nicely

GOT2BZETEC

Also can the range rover v8's ie the 4.6 be modified into a Sporty version, ie quick? this might be a stupid question

markk

iTrader: (2)

forget the bhp figure you g et start to look at the torque, the RV8 will run rings round the V6 all day in a very standardish form - the grunt is massive, i have one in a rally car (in build) and one in my van for towing the rally cars well powerful for low end grunt which for a stock car is what you want

GOT2BZETEC

Yeah because you see all the stock accelerate like hell halfway down the straights right before they have to brake and the v8's take straight out the corner. So can the range rover engines be moddified for my purpose?

markk

iTrader: (2)

yes mate all the rv8 are very similar and the bigger they get the more grunt they have pal

GOT2BZETEC

Excellent but in standard "range rove" State would they do my job or do they need different cams etc? sorry fo all questions but you seem a knowledgble lot

tiny

The 4.6 produces 225 bhp @ 4750 and 277lbft @ 3000 rpm, in standard form

markk

iTrader: (2)

look at that torque figure its only 100lb/ft down on an all singing 500hp cossie motor at full tilt, at only 3000rpm before we start to mod it , you would soon see 400lb/ft with good investment

tiny

Thats why i love them so much, just loads of grunt the whole way trough the
rev range

GOT2BZETEC

Cool see i was just wondering if they"detuned" them for towing and lugging round town, but obviously not, So i have to try get myself a 4.3 or 4.6 but sound like bigish money from what i can find

GOT2BZETEC

The 4.3 has 250ft/lb of torque, with the 4 su's and exhaust manifold, what sort of power and torque increase would you get on both the 4.3 and 4.6

tiny

If you look about you can pick up a 4.6 from about 500 quid, but for that money wats it gona b like, the only good thing is most of the 4.6 RR wont have been raged about

AndyGranger

Our old 205 grasstracker ran a sd1 engine with a shorrock supercharger and holley carb
The only trouble we sempt to get was the super charger side of it
sand siezing it up

RWD_cossie_wil

iTrader: (9)

tiny where you from mate?? you havn't got a white saff V8 have you??
any good websites for american v8's anyone know??

tiny

I wouldnt take off the injection system. i dont think youd gain anything except a heap if trouble

GOT2BZETEC

Tiny so where am i looking for a v8 that cheap because i reckon i could sell my v6 for somethink simlar, i would rather run it on carbs for simplicity, if i had a 4.6 what would your build spec be to increase torque the most on a very small budget?

tiny

Rwd yes iv got a white saph v8, Got2bzetec. id just put a cam in it fettle the heads
slightly,and fit jag airflometer, and leave it at that, should be 300lbft all day long
and reliable to

GOT2BZETEC

What sort of money for them parts? now i have to find one, lol cheap, also for curiosity sake what sort of bhp, thanks Tiny you sure know your stuff.

mrviper

http://www.burgerman.info/sierra.htm

tiny

New cam with lifters approx 200 head work 250 ish retaining standard valves, no
idea what a jag air flometer would cost second hand, froma breakers. not a lot imo.
Power wise prob 255>270.depending on cam choise try looking autotrader/ salvage, or www.pistonhaeds.com , or ever the dreaded ebay for a lump

mrviper

will a jag xk8 engine fit in a sierra ?

4 valves per cylender

RWD_cossie_wil

iTrader: (9)

you from the mids tiny?? sure I used to see you quite a bit, I had a flint saff and raced a white v8 saffy a couple of times?

tiny

No m8 not me? from Ruislip middelsex, how did you get on against the v8 saph?

RWD_cossie_wil

iTrader: (9)

He had me off the line both times, then as we hit 2nd I pulled past him easy, and just kept pulling out each gear, and that was a 3.9 , fair play, it sounded fooking awsome, and we pulled over and had a good chat after, and tbh my stg1 saff was very quick as I think it was running a bit too much boost, 16psi. Last time I saw him he had a 4.6 TVR lump ready to go in Can't beat the sound of a dirty V8 having the tits thrashed off it though thats why i fancy a nice big un with a couple of turbos on

900ss

Is there a good website that lists goodies n general info on V8'S
I'm fitting a Chimaera 4.0ltr atm to my 240z

I think i'm gunna need a remote oil filter housing to get it sorted