Outer Limits 4x4 Board

HEY CHARGER wrote:I would reckon under carby'ing it isnt the way to go ,
to lean = melted pistons !

Under carbing it wil not change the mixture. It will not cause a lean condition.

According to this http://www.nastyz28.com/sbchevy/sblock.html 350s came out of the factory with as little as 185 hp ~ 140 kW.

correctomundo!

undercarburation has nothing to do with fuel mixtures.

udercarburation will limit the amount of air/fuel going into the engine, it DOES NOT mean that the lesser amount of air/fuel going into the engine will be a lean mixture!

you can put a single SU off of a range rover on a SBC and still have the correct fuel mixture!

Cheers,
Jes

bogged wrote:

pcman wrote:heres a great idea we can swap the 350 into my 40 and you can take the 2f till you get off your p's

I was thinking similar, but what about an engine swap, if that donk DOES put out them amount of neddies, Im sure it would sell ***** piss easy.. then get somethin decent to throw in it, a 1HZ or something



Ask Cheezy what his Mav donk puts out . its a 383.. he knows his shit with donks he builds his own, and used to drag race a bit.. he would know if the KW is there

Cheezy's Mav has about 373kW....

HEY CHARGER wrote:I would reckon under carby'ing it isnt the way to go ,
to lean = melted pistons !

Ah Ha , correct the ratio of air fuel mixture is always the same , my mistake .

take off 2 of the HT leads then put it on the dyno

jessie928 wrote:some of these posts are giving horrendous advice

Look sunshine, you have a 350 chev in a 40, this is by NO means a speed demon of a vehicle...

these are a tough and safe vehicle, and are much better for on road dynamics( read much safer) than a lifteed zook or hilux.

if you find its too powerful, just disconnect the secondarys in teh carby

Better still, but on a 2 barrel holley 350 and be done with it...

easyest way to limit horsepower is undercarburate it. END of story!

will cost you at most 100 bucks for the holley!

Cheers,
Jes

I doubt if you could refer to many 25year old 400Hp vehicles with 4 wheel drum brakes as safe.

A Landrover has better road suspension than a 40/45 series, shackles on the front of the springs? Any slop and your front axle trams from left to right.

I'm sure you would get wonderful economy & smooth idle running an undersized carby with a Stage 3 400hp drag racing cam.

If the guy wants one for the style of it, why not, but if he doesn't know what he's getting himself into the least we can do is warn him.

cheers.. like i said just sussing it all out. thanks for the advice

im female btw.

iwanna40 wrote:cheers.. like i said just sussing it all out. thanks for the advice

im female btw.

are you desperate?

Look sunshine

If the guy wants one for the style of it, why not, but if he doesn't know what he's getting himself into the least we can do is warn him.

are you desperate?

nah just making it clear

iwanna40 wrote:nah just making it clear

Oh :(

iwanna40 wrote:cheers.. like i said just sussing it all out. thanks for the advice

im female btw.

Sorry, my wrong assumption on no obvious evidence otherwise, I could also mistake "I'm female" as a non-subtle pickup line when nothing else was noticed by me

Wanna come over on later tonight? If you're not desperate I can be

You'd need something faster than a 400hp 40 though

Bugger, Bogged beat me, it's traditional contest here to hit on any female as soon as they're discovered.

Rainbow Warrior wrote:Wanna come over on Sat nite? If you're not desperate I can be

hey get in behind bitch..

iwanna40 wrote:im female btw.

I'll say it ...

THIS THREAD IS USELESS WITHOUT PICS!

Sell the HiPo V8 and get a decent "normal" V8 perhaps with EFI, easy to drive plenty of torque and easy to manage in traffic etc .. (Ie no cantankerous lumpy carbed V8 overheating, hard starting when cold or hot etc etc).

I can no longer restrain myself, after reading your threads for the last few months the best advice I can provide is
Buy a MX5, small, economical, easy to learn in, fun, Oh and the red ones go faster
J Top

iwanna40 wrote:cheers.. like i said just sussing it all out. thanks for the advice

im female btw.

A discovery has been made !!
In a Sean Connery voice ,
" i can be in Templestowe in 5 mins , so just let me know ."

cheers jtop

Rainbow Warrior wrote:
I doubt if you could refer to many 25year old 400Hp vehicles with 4 wheel drum brakes as safe.

A Landrover has better road suspension than a 40/45 series, shackles on the front of the springs? Any slop and your front axle trams from left to right.

I'm sure you would get wonderful economy & smooth idle running an undersized carby with a Stage 3 400hp drag racing cam.

If the guy wants one for the style of it, why not, but if he doesn't know what he's getting himself into the least we can do is warn him.

a- well set up drum brakes on a 40 dont have a problem pulling up.. with a v8

I have had 7 fj'40's i have 4 at the moment, one has a 600hp SBC one has a 302 windsor, one has a 4.2 petrol and teh oher is teh farm car and has the diesel donk.

only one of them has disk brake front.

Whats a drag racing cam doing in a 4wd? do you want tourque to start at 4000rpm or what?

As a matter or fact it will actually be alot smoother with a smaller carb

Landrover, when were we comparing brittish trash?

a fj40 is much better on road with a " lighter" SBC in the front

Cheers, Jes

jessie928 wrote:

Rainbow Warrior wrote:
I doubt if you could refer to many 25year old 400Hp vehicles with 4 wheel drum brakes as safe.

A Landrover has better road suspension than a 40/45 series, shackles on the front of the springs? Any slop and your front axle trams from left to right.

I'm sure you would get wonderful economy & smooth idle running an undersized carby with a Stage 3 400hp drag racing cam.

If the guy wants one for the style of it, why not, but if he doesn't know what he's getting himself into the least we can do is warn him.

a- well set up drum brakes on a 40 dont have a problem pulling up.. with a v8

I have had 7 fj'40's i have 4 at the moment, one has a 600hp SBC one has a 302 windsor, one has a 4.2 petrol and teh oher is teh farm car and has the diesel donk.

only one of them has disk brake front.

Whats a drag racing cam doing in a 4wd? do you want tourque to start at 4000rpm or what?

As a matter or fact it will actually be alot smoother with a smaller carb

Landrover, when were we comparing brittish trash?

a fj40 is much better on road with a " lighter" SBC in the front

Cheers, Jes

A V8 doesn't necessarily help it pull up other than it may be lighter than the original donk, sure drums may pull up ok, but well set up discs pull up better.

Drums work fine if you regularly pull the wheels off to clean & adjust them, but the novelty wears off after you've experencied not pulling the wheels off and not having to adjust them regularly.

600hp? I'm guessing it's not your daily commuter, nothing wrong with a good play toy, but if the OP is young and want's to cummute regularly on a low wage, it may not be within reach.

Torque starting up high? I've seen this so many times, with some many conversions turning a decent off roader into something that bucks like a pig offroad, because a mate sold me this kick arse motor from his 11 sec Torana cheap. Rotary Sierra needing to rev it's nut off in soft sand, while stock ones overtake it

I've never tried a wild grind cam with a stock carby but assume there's a very good reason for not doing it.

I'm comparing any 70's "trash" really, I didn't say their handling was good, though with mine handled pretty tight on army springs & crossplies.
Even after my mate spent 2 years of mods of mods and thousands on 2 sets of springs & shocks, it still didn't feel right on the freeway, hence he never ended up fitting the 35's, he sold it instead.
Brakes? He had his drums off for cleaning every time I had my Landrovers drums off every 2nd weekend and got pissed off when I brought a Rangie and stopped doing so.