Classic Mustangs (Tech) Technical discussions about the Mustangs of yester-year.

It Happened!

Thread Tools
 
Search this Thread
 
Old Apr 21, 2011 | 12:36 AM
  #231  
tx65coupe's Avatar
tx65coupe
5th Gear Member
 
Joined: Dec 2008
Posts: 4,462
From: Texas
Default

I have to say yuck on the new 5.0 badge.

I had issues with the motor mounts too. Thats why we went with RMP adjustable ones. They are really nice.
Old Apr 21, 2011 | 08:59 AM
  #232  
kalli's Avatar
kalli
6th Gear Member
 
Joined: Oct 2006
Posts: 6,417
From: Cork, Ireland
Default

finally the 6cyl man getsa V8.
and yes that 5.0 badge is horrible

nice painting though :-) although I have a performer rpm intake now I always was a fan of the weiand I had

anyway, make sure you get a shroud for your fan. the fan as is won't do much in traffic.it sucks air through only half the radiator. it will be hot all aound it.

and the pulleys you have, it looks like the waterpump pulley is bigger than crank pulley (typical underdrive system for more HP).
but that can cause problems when idling (it did for me, but not neccessarily for you, just in case it happens)
if the pulleys are same size, lets say 6" and 6" then at 850rpm the waterpump will run at 850rpm
however if the crank is 5" and the waterpump 6" the waterpump will only run at 5/6th of engine speed. assume 850crank->~700 waterpump
if its the other way around (6"pump pullet and 5" crank pulley) the waterpump will run at ~1000rpm.
slow waterpump is better for making HP (less drag) but can be a PITA on a hot summer day ... just so you know
Old Apr 21, 2011 | 10:20 AM
  #233  
1slow67's Avatar
1slow67
Thread Starter
ROTM Moderator
 
Joined: May 2007
Posts: 8,157
From: AL
Default

Crank is 5.5" and the water pump is 5.875"
Old Apr 21, 2011 | 01:46 PM
  #234  
1slow67's Avatar
1slow67
Thread Starter
ROTM Moderator
 
Joined: May 2007
Posts: 8,157
From: AL
Default

Well now I've hit another snag. My drivers side exhaust manifold hits the z-bar so I can't bolt it to the engine
Old Apr 21, 2011 | 02:23 PM
  #235  
hightower2011's Avatar
hightower2011
4th Gear Member
 
Joined: Apr 2010
Posts: 1,643
From: Madison, Georgia
Default

I like the 5.0 badge, a little. I dunno, i plan on going with no badges anyways, so I guess I can't say too much for the subject.
Old Apr 22, 2011 | 03:11 AM
  #236  
tx65coupe's Avatar
tx65coupe
5th Gear Member
 
Joined: Dec 2008
Posts: 4,462
From: Texas
Default

Having that 5.0 badge is like saying it has a new 5.0 in it.

Definitely listen to Kalli about a fan shroud.

I can't believe that the exhaust manifold is hitting the Z bar.
Old Apr 22, 2011 | 03:13 AM
  #237  
tx65coupe's Avatar
tx65coupe
5th Gear Member
 
Joined: Dec 2008
Posts: 4,462
From: Texas
Default

Originally Posted by kalli
finally the 6cyl man getsa V8.
and yes that 5.0 badge is horrible

nice painting though :-) although I have a performer rpm intake now I always was a fan of the weiand I had

anyway, make sure you get a shroud for your fan. the fan as is won't do much in traffic.it sucks air through only half the radiator. it will be hot all aound it.

and the pulleys you have, it looks like the waterpump pulley is bigger than crank pulley (typical underdrive system for more HP).
but that can cause problems when idling (it did for me, but not neccessarily for you, just in case it happens)
if the pulleys are same size, lets say 6" and 6" then at 850rpm the waterpump will run at 850rpm
however if the crank is 5" and the waterpump 6" the waterpump will only run at 5/6th of engine speed. assume 850crank->~700 waterpump
if its the other way around (6"pump pullet and 5" crank pulley) the waterpump will run at ~1000rpm.
slow waterpump is better for making HP (less drag) but can be a PITA on a hot summer day ... just so you know
Very good point about pulley sizes.
Old Apr 22, 2011 | 04:58 AM
  #238  
kalli's Avatar
kalli
6th Gear Member
 
Joined: Oct 2006
Posts: 6,417
From: Cork, Ireland
Default

that's a bummer with the exhaust, not made for manual?

with the pulley sizes, you might get away with it and for break in i don't see much of a problem since you will be revving the engine.
However if it all settles down and you just leave it run in idle carefully monitor the temperature. if all good as well try with hood closed.

what I am saying is, if you have trouble with heat at idle, investigate on pulleys and fanshroud.
I had this problem but I had a flex fan so/ that would turn slower as well. you have a electric fan so you might get away with it
however the cooling system without shroud is inefficient.
the aim is not to blow air towards the engine.
the aim is to shove as much cold air through _all_ the ribs in radiator causing the water to cool (exchange heat)
that's no problem when you are driving down the road, however at standstill your fan has to do all that work, and as it's currently setup it just pulls air through the middle.
scrapyard is probably the first place I'd look at.
personally I'm not a fan of electric fans. some people connect it with a switch instead of thermostat and forget to run it on or off. really bad. i therm clutched fan shroud is ideal. it will turn when hot and just hang in there when cold. I'll convert my flex fan to that at some stage. electric fans needs thermoswitches and relays and wiring which I'm not happy with. b ut that's my personal opinion. some swear on it

i don't want to cause grief or make you uncomfortable. it's just when you have problems with heat when idling you have a small list of things where you could improve ;-)

Last edited by kalli; Apr 22, 2011 at 05:05 AM.
Old Apr 22, 2011 | 09:54 AM
  #239  
1slow67's Avatar
1slow67
Thread Starter
ROTM Moderator
 
Joined: May 2007
Posts: 8,157
From: AL
Default

Mine has a circuit kit that runs a relay and circuit off of a seperate thermostat that turns on at 200 and off at 185.
Old Apr 22, 2011 | 10:00 AM
  #240  
1slow67's Avatar
1slow67
Thread Starter
ROTM Moderator
 
Joined: May 2007
Posts: 8,157
From: AL
Default

As for the header/manifold situation they are from an 87 302 and during then they had cable clutch setup so they wouldn't have had to route around a zbar.



All times are GMT -5. The time now is 11:55 PM.