347 power expectations

[josh_ef]

hey v8 guys

im getting a 347 rebuilt with a different set of heads, i got the motor second had in pieces less heads

previous build was basically:

scat 347, low 9 ish comp ratio, edelbrock heads (ported) 1.7 rollers, au manifold and t/b standard maf, standard injectors and some genie extractors. monster cam, not sure specs some sort of blower cam
no stall and 3.27 gears it ran 13.7 and pulled 207 at treads (apparently)

this time round:

same bottom end with 9.8 comp and smaller cam, alloy gt40 svo heads (ported) 1.7 rollers gain, au manifold, 80 mm t/b and maf, probably standard injectors for now, pacemaker extractors, 3000 stall and 4.11 gearing

aiming for 200 mark, is this an easy task or am i shooting a bit high for a na windsor

any advice be great

[EBOOST]

with stock 19lb injectors max 165-175rwkw id say.
and 80mm throttle body on au manifold?
u cant even get that manifold ported out to 80mm opening.
get bigger injectors and a tune it should doover 200.
i made 210rwkw with mine that was manual tho and it had standard 220kw au gt-40p's but i had a edelbrock performer rpm2 manifold and 70mm t/b and 90mm maf and a smallish pretty crap cam.
and my comp ratio was roughly what urs is now.
cheers josh.

[Michael (HYPOEB)]

Abit off topic but how is your old AU going these days? someone bought it just around the corner from you didnt they?

[josh_ef]

cheers mate

yeh its on the manifold but i can see that its to big for it, im looking at getting the manifold match ported to the heads and ill get the tb done also

or getting a edelbrock manifold.

210 is pretty decent for a smallish cam

yeah im looking a injectors and what size to get

[Bomber]

I know Vic from ford mods got above 200 rwkw in the stroker on his el ghia

[Steady]

manifold, injectors and probably heads (dependent on how much port work) will hold it back.
is that bottom end the ex-laminge/BLCKED 347?

how much of this have you already bought, or is this a "i've only got the bottom end but this is what im planning" thread?

[josh_ef]

yeah its blackeds old motor

[josh_ef]

yeah its blackeds old motor, everything i have listed i already have purchased

a fresh 5 litre block, fully balanced and decked. the scat/je internals. the comp will be bit higher then it was with his heads as these have alot smaller chambers and there almost brand new heads so im taking a decent amount off the bottom of them to keep comp ratio up but i do plan to charge it over next few years. a mid 9 is friendly for 6-8 psi of boost.

the heads will have massive porting but i agree the manifold will hold it back, looking at some edelbrock ones (any reccomendations?)

might be scoring a wolf ecu to help run it or would i be better off with a j3 chip?

my other concern is auto, i have a stage 2 mechanical shift kitted btr but its otherwise standard, and its already a bit slippy. can these units be made to handle 250 - 300 mark? (when i boost it)

going to run a mini spool for now, once its boosted 31 spline full spool.

[needfordspeed]

I reckon you are BLCKED, been suspecting it since you started posting

[Mr_4.0]

btr's can be made to handle 600hp COMFORTABLY!

speak to DTM in geelong. ask for aaron.

[Parfrey]

a mates te50 made 200kw recently with AFR225 heads, unsure on cam, 1.7 r/r, manifold spacer, full diffilipo exhaust, stock tickford tb + maf and still a 5l.
what would be holding it back??

[Steady]

yeah its blackeds old motor, everything i have listed i already have purchased

a fresh 5 litre block, fully balanced and decked. the scat/je internals. the comp will be bit higher then it was with his heads as these have alot smaller chambers and there almost brand new heads so im taking a decent amount off the bottom of them to keep comp ratio up but i do plan to charge it over next few years. a mid 9 is friendly for 6-8 psi of boost.

the heads will have massive porting but i agree the manifold will hold it back, looking at some edelbrock ones (any reccomendations?)

might be scoring a wolf ecu to help run it or would i be better off with a j3 chip?

what you going to boost it with?? turbo, centrifugal or pd???

Edelbrock RPMII, OR possibly a Trickflow R-Series for the manifold.
I have a Wolf and I'd do it again
it works, it's easy, every man and his dog can tune them.

a mates te50 made 200kw recently with AFR225 heads, unsure on cam, 1.7 r/r, manifold spacer, full diffilipo exhaust, stock tickford tb + maf and still a 5l.
what would be holding it back??

everything except the heads and the exhaust
actually no laughing, im serious.
would have to know more about the combo, but unless it's got alot of comp, is a solid roller spinning over 7000rpm, and has the odd hit of nitrous i'd say it's severely under-utilising those heads.

[josh_ef]

na im just a mate of his, bought his old e series junk

most likely centrifugal charger, like commandos

yeah i think i will get this wolf, too good to pass up.

edelbrock rpm2 i like the look of, whats their flow rate compared to an exporer manifold? are they worth the dolalrs?

[Steady]

bout 600-700US for an RPMII, stomps all over an explorer pretty much everywhere except down low, thats on a 5L, with a 347 you wouldn't even think twice about it.
don't stress too much about trying to get the comp down any further with a centrifugal, if the tune and fuel is good it's not a huge issue, especially with the alloy heads.
you are 100% gonna need bigger injectors though man, even before the blower.
if you are putting a wolf on it i would go 36s or 42s straight up.
you also won't need a MAF.
TB doesn't need to be 80, 75mm will be heaps.
it should go 200 n/a pretty damn easy.

[josh_ef]

awesome mate thanks for all that

i will running a 3 grand convertor, the motor will be able to rev to 7 not a problem, solid lifters. yeh i think mid 9 comp will be good for a charger im also considering nitrous

the wolf was only going to be for later down the track when i charge it but i think i will still use it now for the na combo

its the tb i have so i gess ill use it for now

any suggestions on cam? few people have told me to go down to wade tell them the combo and they will choose something that best suits it

[Steady]

keep it hydraulic and don't rev it over 6200, if you want the block to live when the blower goes on.

wait till you know what the heads flow before you get the cam.

[XR_Lightning]

what was MEANED's setup to get the 260 or so rwkws? anyone know?

[EBOOST]

yeah i had the rpm2 manifold and it made a huge difference in my oppinion it felt better than the explorer manifold everywhere.
it got tuned with it where as the explorer it didnt so mightve been that but dam it felt good after the tune.
then it killed the clutch at the drags so i never got a full run.
but yeah intake and injectors i recon for now then alloys if u can later.
cheers josh.

[josh_ef]

yeah think ill get the manifold

yeah i already got some alloys, svo heads, there not as good as like edelbrocks or afr but there better then gt40s

[Parfrey]

a mates te50 made 200kw recently with AFR225 heads, unsure on cam, 1.7 r/r, manifold spacer, full diffilipo exhaust, stock tickford tb + maf and still a 5l.
what would be holding it back??

everything except the heads and the exhaust
actually no laughing, im serious.
would have to know more about the combo, but unless it's got alot of comp, is a solid roller spinning over 7000rpm, and has the odd hit of nitrous i'd say it's severely under-utilising those heads.

haha yeah i was kinda thinking the heads are fairly serious. i'll have to get the cam specs it sounds super tuff at idle!
funnily enough the tuner (in darwin NT) suggested that the exhaust was restricting it! i think not! oh it also has some type of motec to tune it..
so we should be looking at the intake side of things next...

[Steady]

has it still got an explorer????
cam you'd really want someone who KNOWS there shit, you'd be looking at LSx style grinds.
i'd be looking to the states for the custom cam actually, it'll need some revs, hopefully the bottom end and valvetrain are up to it?

[mickyyyy]

Go hydrolic roller and dont rev it past 6000rpm to save ur block as it will crack and only a matter of time tune and how much u abuse it