What would RELIABLY support 600 rwhp? - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 19 Old 06-08-2007, 01:24 AM Thread Starter
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What would RELIABLY support 600 rwhp?

If you were to build a single-turbo setup, what size turbocharger would you select for a goal of say -- around 600whp?

The car is going to have a moderately sized engine (347 c.i.d. / 4.125'' bore x 3.25'' stroke) and I'm going to target my static compression ratio around an even 9.0 to 1. The car will be driven 95% of the time on the street, so I would like it to come on relatively quick.....

I was thinking somewhere in the neighborhood of a 76-88mm turbo. CORRECT ME IF I'M WRONG. I don't really have any experience with this kinda thing.

Also, where can I find something around that size for a REASONABLE PRICE, or is that even possible lol?

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post #2 of 19 Old 06-08-2007, 02:15 AM
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id say a 70 or a 76 mm would sufice.

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post #3 of 19 Old 06-08-2007, 10:43 AM
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T76 would be optimum

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post #4 of 19 Old 06-08-2007, 12:05 PM
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67mm to 76mm
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post #5 of 19 Old 06-08-2007, 12:07 PM
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Go buy Maximum Boost off of Amazon. All the formulas, with explanations anyone can understand, on how to properly size your turbo based on a multitude of factors. I am sure the information that is presented above is correct but this may answer many questions for you that will come up in the future with your turbo setup. The book is dated with the cars in it, but the science has not changed!
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post #6 of 19 Old 06-08-2007, 12:37 PM
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Really no need to buy that book for that information because if you search online you can get all the information for free. Why even bother trying to size it when you could just call the very places that sell/build the turbos and have an expert in that arena size one for you? Things are changing all the time for turbos and sometimes hard to know what would be the best option for your goal.

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post #7 of 19 Old 06-08-2007, 01:07 PM
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Actually that books is the bomb and covers a lot
more than just picking a turbo.
http://www.amazon.com/Maximum-Boost-...9369636&sr=8-1

this is a good link
http://www.rbracing-rsr.com/turbotech.html#garrett

I'm going to use twin T3/T4's myself for same goal

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post #8 of 19 Old 06-08-2007, 01:18 PM
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I own the book and in multiple places Corky contradicts himself. Most of the information that is good in that book, can just as easily be found on the web. Supposeably he is rewriting it or writing a new version of it.

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post #9 of 19 Old 06-10-2007, 02:56 PM
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A T76 would be a little to the right of the middle of its efficiency island at that power level (assuming 70lb/min flow and 15 PSI to get that power), but would work well.

A T88 would be theoretically better from an efficiency standpoint, but a T76 would probably be more practical (spool much sooner).

1990 Mustang GT, Explorer shortblock with DSS MSS, Edelbrock Performer RPM heads, stock GT cam with 1.72RR, ported Explorer intake and 65mm TB, PTK T66 kit @ 18psi, AEM EMS + WBO2, Alkycontrol methanol injection: All Sold
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post #10 of 19 Old 06-10-2007, 03:08 PM
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I would say a Master Power T70 would be in it's efficiency at 600 flywheel hp and at around $550 it's a super deal!


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post #11 of 19 Old 06-11-2007, 07:14 AM
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Quote:
Originally Posted by 87Saleen209 View Post
I would say a Master Power T70 would be in it's efficiency at 600 flywheel hp and at around $550 it's a super deal!
Which is a correct statement, but the poster asked for 600whp (not flywheel), which would be well to the right of the middle of the MP T70's eff. island.

1990 Mustang GT, Explorer shortblock with DSS MSS, Edelbrock Performer RPM heads, stock GT cam with 1.72RR, ported Explorer intake and 65mm TB, PTK T66 kit @ 18psi, AEM EMS + WBO2, Alkycontrol methanol injection: All Sold
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post #12 of 19 Old 06-11-2007, 03:49 PM
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I'm running a 66mm and could get 600 rwhp on pump gas with just a little more boost if i wanted more power. I gotta go on the dyno again with some changes i've done, I might be pushing closer to 600 at the wheels already.

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post #13 of 19 Old 06-18-2007, 11:13 AM
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t66 here 600 rwhp at 14 psi and spools VERY fast

perfect for my street car
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post #14 of 19 Old 06-18-2007, 03:04 PM
 
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Whats the max for a 6k RPM 302 on pump fuel?
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post #15 of 19 Old 06-18-2007, 03:41 PM
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max what?

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post #16 of 19 Old 06-18-2007, 05:01 PM
 
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Quote:
Originally Posted by r.barn View Post
max what?
Sorry. Max rwtq and rwhp. Basically what's the limit on a street setup.
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post #17 of 19 Old 06-18-2007, 09:36 PM
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Std pump ?? around 300 h.p and that would be unhealthy..
The fuel rails are ok up to 500 h.p, not that the std injectors would...
I wouldn't try with std std pump.. They are easier to change than engines!!!

1991 XR8 Australian Falcon TFS induction
2014 Falcon GTE Supercharged Coyote

85 Lb inj Custom cam ,P 2000 Haltech ecu...4x's 2 coil wasted spark ignition.Twin SC 61-2s with Dart block, 330/4340 Crank, Oliver rods,7.9/ comp c C.P pistons.. 482 rwkw/ 646 rwhp..A.P 4 pot brakes...TKO
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post #18 of 19 Old 06-19-2007, 09:54 AM
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Quote:
Originally Posted by MOTORCITYMADMAN View Post
Sorry. Max rwtq and rwhp. Basically what's the limit on a street setup.
As far as what is possible I've seen plenty of people running
550-600rwhp at 15psi with good street set-ups and tunes.

stock 302 blocks are good for about 450rwhp, past that
and it can last for years or blow up in 2 weeks
Luck seems to play a role in keeping 302's together past 500-550 flywheel hp
plenty of people running 500+rwhp on stock 302's but also
plenty of people blowing them up at those power levels too.

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post #19 of 19 Old 06-19-2007, 08:56 PM
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I assume you are using an aftermarket block with the 4."125" bore ??
With reasonable induction ?? A T70 size would do it easy....

1991 XR8 Australian Falcon TFS induction
2014 Falcon GTE Supercharged Coyote

85 Lb inj Custom cam ,P 2000 Haltech ecu...4x's 2 coil wasted spark ignition.Twin SC 61-2s with Dart block, 330/4340 Crank, Oliver rods,7.9/ comp c C.P pistons.. 482 rwkw/ 646 rwhp..A.P 4 pot brakes...TKO
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