sigle or twin - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 15 Old 03-11-2009, 08:17 AM Thread Starter
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sigle or twin

I have 351w with blowercharg 177 holley....i remove the blower ...



i want to put turbo..but i dont know if sigle or twin is the best for daile use with out any prblem....and with good power.....


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post #2 of 15 Old 03-11-2009, 11:50 AM
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same same

just depends on what you like and what you're after.
Twins will spool up a little better, but cost a little more to do.

I went with twins on my set-up just because I found it
was going to be easier to run 2 small downpipes vs 1 large downpipe
and easier to fit 2 small turbos than 1 large one.

Both work equally well, almost more of a cosmetic preference more than
anything.


My homemade 351W with twin T3/T4 Garrett turbochargers
and flipped BBK headers.






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post #3 of 15 Old 03-11-2009, 06:30 PM Thread Starter
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ok...what you think about sigle 76mm.......
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post #4 of 15 Old 03-11-2009, 08:46 PM
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Hey R. Barn what trim and AR are your turbos? I've got a very similar setup to yours, except mine is a 302 and the wastegates are internal.

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post #5 of 15 Old 03-11-2009, 09:15 PM
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IMO I would run a single. Duals are more money, more weight, and more to plumb.

What power are you looking to make?
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post #6 of 15 Old 03-11-2009, 10:08 PM
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Quote:
Originally Posted by haitham_c6 View Post
ok...what you think about sigle 76mm.......
single 76 would be good turbo for 351W up to say mid-low 600's at the wheels.

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post #7 of 15 Old 03-12-2009, 07:38 PM Thread Starter
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thats good...
my engine 418ci with 225cc . 2.05 valve heads and custom cam from erson 112.3 lop...
how much i get HP you think ???
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post #8 of 15 Old 03-12-2009, 11:10 PM
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I made almost 800RWHP with a 76 on a 352 and that was "only" at 15psi. There was quite a bit left if I didn't run out of injector.
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post #9 of 15 Old 03-13-2009, 07:22 PM Thread Starter
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yes..

verey good
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post #10 of 15 Old 03-14-2009, 11:25 AM
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Quote:
Originally Posted by haitham_c6 View Post
thats good...
my engine 418ci with 225cc . 2.05 valve heads and custom cam from erson 112.3 lop...
how much i get HP you think ???
I'd run twin 60-1's or single 88 on engine that big.
Make 1000rwhp if you want it to.

I'd get a different cam also. 112 LSA is not ideal for a turbo cam.
Thats an N/A cam spec.
Turbo cams usually run more like a 115-117 LSA to help prevent reversion
from pre-turbo back pressure. ....... just a thought.


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post #11 of 15 Old 03-14-2009, 02:29 PM Thread Starter
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Quote:
Originally Posted by r.barn View Post
I'd run twin 60-1's or single 88 on engine that big.
Make 1000rwhp if you want it to.

I'd get a different cam also. 112 LSA is not ideal for a turbo cam.
Thats an N/A cam spec.
Turbo cams usually run more like a 115-117 LSA to help prevent reversion
from pre-turbo back pressure. ....... just a thought.
you mean i must chang the cam ???
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post #12 of 15 Old 03-14-2009, 03:43 PM
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Quote:
Originally Posted by haitham_c6 View Post
you mean i must chang the cam ???
What are the specs on the cam that you have now?

New build in progress: Twin Gen 2 PT6466 352

Old combo:352 single 76mm turbo, 16psi, AOD, 9.41 @ 149mph, E85, 255/50/16 MT DR, 3500lb STREET car driven everywhere.
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post #13 of 15 Old 03-14-2009, 04:05 PM
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Quote:
Originally Posted by haitham_c6 View Post
you mean i must chang the cam ???
No, you dont HAVE to, but you might think about it.
+1 post specs. Lets see what you have.

Sure your current cam will work, it just may not be the "best" unless it
was spec'd for a turbo motor.

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Last edited by r.barn; 03-14-2009 at 04:07 PM.
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post #14 of 15 Old 03-15-2009, 05:46 AM Thread Starter
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the cam 112.3 LSA....
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post #15 of 15 Old 03-15-2009, 10:03 AM
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There is MUCH more to a cam than the LSA.

What is the duration at .050" lift????

New build in progress: Twin Gen 2 PT6466 352

Old combo:352 single 76mm turbo, 16psi, AOD, 9.41 @ 149mph, E85, 255/50/16 MT DR, 3500lb STREET car driven everywhere.
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