anyone have an S/D 347???
Joined: Apr 2008
Posts: 30
From: Pasadena, MD
honestly i dont know what computer is in it, i would imagine it is the factory 86 speed density computer in it. i will have to look and check it out. for the fuel pressure im am running 42psi w/vacuum off, and the timing is 16 degrees when i know im not spraying it and about 12 degrees when i know i am spraying it! TPS right at .980! i set the idle right at 1000rpm and it idle's pretty good!
1st Gear Member
Joined: May 2008
Posts: 51
my blower works good sd too
your better off upgrading the heads and intake first you'll get more power that way a 347 is just gonna get you some torque and move the powerband down you'll only gain 10hp with stock heads from a 347
your better off upgrading the heads and intake first you'll get more power that way a 347 is just gonna get you some torque and move the powerband down you'll only gain 10hp with stock heads from a 347
6th Gear Member
Joined: Feb 2005
Posts: 13,396
From: KY
1st Gear Member
Joined: May 2008
Posts: 51
back in the day a 351 crate motor with e7te's was only 235hp.
but really lets think about it, stepping to a 347 your increasing stroke .4". your running a 4"bore still with the same pathetic heads, hp wise you'll just make the same numbers 400rpm sooner. you will gain torque because torque is in fact a function of stroke and cubic inches, hp however is not. hp is based on cfm not cubic inches. this is why i said get better heads and intake- cfm- airflow
so in theory it wont make 10more hp but i think it will but thats about it. change the top end components and its a whole different ball game but stock e7te's are door stops they dont flow very well
but really lets think about it, stepping to a 347 your increasing stroke .4". your running a 4"bore still with the same pathetic heads, hp wise you'll just make the same numbers 400rpm sooner. you will gain torque because torque is in fact a function of stroke and cubic inches, hp however is not. hp is based on cfm not cubic inches. this is why i said get better heads and intake- cfm- airflow
so in theory it wont make 10more hp but i think it will but thats about it. change the top end components and its a whole different ball game but stock e7te's are door stops they dont flow very well
1st Gear Member
Joined: Jan 2006
Posts: 97
From: VA
back in the day a 351 crate motor with e7te's was only 235hp.
but really lets think about it, stepping to a 347 your increasing stroke .4". your running a 4"bore still with the same pathetic heads, hp wise you'll just make the same numbers 400rpm sooner. you will gain torque because torque is in fact a function of stroke and cubic inches, hp however is not. hp is based on cfm not cubic inches. this is why i said get better heads and intake- cfm- airflow
so in theory it wont make 10more hp but i think it will but thats about it. change the top end components and its a whole different ball game but stock e7te's are door stops they dont flow very well
but really lets think about it, stepping to a 347 your increasing stroke .4". your running a 4"bore still with the same pathetic heads, hp wise you'll just make the same numbers 400rpm sooner. you will gain torque because torque is in fact a function of stroke and cubic inches, hp however is not. hp is based on cfm not cubic inches. this is why i said get better heads and intake- cfm- airflow
so in theory it wont make 10more hp but i think it will but thats about it. change the top end components and its a whole different ball game but stock e7te's are door stops they dont flow very well
Banned
Joined: Dec 2005
Posts: 22,374
From: Lil' Rhody
Just stole a used 302 block off a guy for dirt cheap that i'm planning a 347 build with, i already have a set of refurb'd e7te's... If i were to get the heads ported and the whole nine, would i be able to get them to flow good enough to get some good gains from the 347??
you wont even break 300hp
D.R. THE PATHETIC DORK
Joined: Jun 2007
Posts: 30,871
From: West Virginia
Just stole a used 302 block off a guy for dirt cheap that i'm planning a 347 build with, i already have a set of refurb'd e7te's... If i were to get the heads ported and the whole nine, would i be able to get them to flow good enough to get some good gains from the 347??
3rd Gear Member
Joined: Dec 2007
Posts: 717
From:
i'm loving the e7 chirps haha
I guess just spend the cash and get better heads. Even though there going to run you probs the same price as the 347 kit ( a cheap one )
Can you run a 347 on the stock computer (1990) ? with what mass and injectors?
or do you need to chip in and run all sorts of tunage?
I guess just spend the cash and get better heads. Even though there going to run you probs the same price as the 347 kit ( a cheap one )
Can you run a 347 on the stock computer (1990) ? with what mass and injectors?
or do you need to chip in and run all sorts of tunage?
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