What is the largest cubed motor I can run a MPT-70 turbo on? - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 20 Old 04-22-2011, 07:23 PM Thread Starter
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What is the largest cubed motor I can run a MPT-70 turbo on?

I'm looking for 600 rwhp with a master power T-70/.96 exhaust housing. I can build a 351W stroker or stick with a 302 based stroker...has anyone run a 351W stroker successfully (able to rev to 6000 rpm +) with the small turbo?


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post #2 of 20 Old 04-22-2011, 09:12 PM
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Best bet for 600 rwhp is a 302. Stroked 351w is too damn big

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post #3 of 20 Old 04-23-2011, 12:44 AM
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A well built 331/347 will make 600rw easy on that turbo

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post #4 of 20 Old 04-23-2011, 10:30 AM
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Quote:
Originally Posted by Radrick50 View Post
I'm looking for 600 rwhp with a master power T-70/.96 exhaust housing. I can build a 351W stroker or stick with a 302 based stroker...has anyone run a 351W stroker successfully (able to rev to 6000 rpm +) with the small turbo?
Well......I believe the answer is yes. The 351w in stock form doesn't like to rev past 6000 rpm ( abused relentlessly ) unless you go 377 to 427. Go with the 351w for all the obvious reasons. You never know what your gonna get with the 302. Some 302's will hold together under high boost......and some just don't.

I have a 351w with the on3 kit and it's a joy to drive.

Just remember guys....always do BREAK-IN miles ( 500 or so ) before you flog the hell out engines with boost and THEN get the car tuned. How would you like for me to wake you up at 3 in the morning and run you hard as hell without 1st a warm-up. What I'm trying to say is....be smart mustangs are people too lol.

I see to many car fail because of this

BIGGER IS Better
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post #5 of 20 Old 04-23-2011, 02:21 PM
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You think a longer stroke of a 427 will like to be revved higher than a 351w ?
A real 302 will make more power with a T70 than a 427 guaranteed. Using the same size turbine, bigger is NOT better. The block is the weak link in either case. If it was a stock block scenario I would say a plain ole 351w. Rings are mostly seated in the first few minutes of idling. Technology has changed over 60 years and the 500 mile rule doesn't apply anymore. I'll let you know if I ever blow one up Until then, complete the break in on the dyno.
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post #6 of 20 Old 04-23-2011, 05:55 PM
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I agree 110%

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post #7 of 20 Old 04-23-2011, 06:01 PM
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Quote:
Originally Posted by 10secgoal View Post
Best bet for 600 rwhp is a 302. Stroked 351w is too damn big
I guess you know everything there is to know about induction and high cubic inch engine combos'

My stock/mild/ or heavily modified mustang will make more power than the same stock/mild or heavily modified but smaller 302. Do a little research

Lets see......302 & 600 rwhp equates to how much horsepower at the crank?

302 blocks are pretty much max out around 500 at the crank; so your math is off about 200 or so rwhp.

I remember when I saw my friends 408w mustang with a YS-trim blower on it pushing 22 lbs of boost and I asked him " Don't you think that's too much for the streets!!!!!!!!!?????????" He replied "You can never have too much"

bigger is better ( just unzip your pants and look in between your legs )

I'm not here to argue; just giving suggestion from the success I've had
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post #8 of 20 Old 04-23-2011, 06:30 PM
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I don't know everything, far from it. But obviously miles ahead of you. I would rather go NA than to put a T70 on a 427. As a matter of fact I had a 408 LS come in here with an STS and a t61. It was a complete joke. It's called back pressure. Again, if were are talking about a stock block, the 351w has the potential to make more hp because of a stronger block. A smaller engine with the same turbo will make more HP. Wtf does a ysi have to do with anything ? We are talking about turbos. When your done talking about dicks, do a little of your own research.

Ever seen a single turbo 67mm mustang make over 800rwhp ? Nope, you haven't. Imports do though. Wonder why that is.
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post #9 of 20 Old 04-23-2011, 07:08 PM
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Not to get off topic but...

Heck guys run in the 7's with 331's and make well over 1000rwhp, the ci thing isn't that big of a deal like it use to be, there is to much technology these days. That's more power than most of us will ever need!

Replacement for displacement is technology.

A MPT70 is def the wrong turbo for a stroked 351, heck my lil 331 maxed it out. It would work, but is far from ideal!

-Chris

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post #10 of 20 Old 04-23-2011, 07:22 PM
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Hey 10secgoal!!!

Your really not that smart yourself

I guess you cant look at the bigger picture or are you just focusing on one word at a time. The YS was just a reference to the bigger is better statement, as well as the dick joke, but I guess you cant see that huh.

The only time you'll be miles ahead of me.........is when I'm about to lap your a$$ lol

But seriously; all jokes aside:

The original post was asking if anyone with a 351w stroker (successfully rev to 6k plus ) with a master power T-70/.96 exhaust housing.

I believe that is the same turbo that goes on the 351w on3 kit ( can't remember )!
So he should be able to use his 351w stroker motor with that turbo.

And I said that 377 to 427 like to be revved which they (do 6k plus)

So i guess his question ( in theory ) was answered

I'll let you have the last word.......by the way PM me with directions to your shop since we're fellow San Diegans' and maybe we can talk face to face


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post #11 of 20 Old 04-23-2011, 08:53 PM
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Quote:
Originally Posted by 4Jenna View Post
Not to get off topic but...

Heck guys run in the 7's with 331's and make well over 1000rwhp, the ci thing isn't that big of a deal like it use to be, there is to much technology these days. That's more power than most of us will ever need!

Replacement for displacement is technology.

A MPT70 is def the wrong turbo for a stroked 351, heck my lil 331 maxed it out. It would work, but is far from ideal!

-Chris
Thanks Chris

Your probably more right than me. I personally have not seen the 331 make that power, but that doesn't mean they can't.

I've seen your vehicle and post and I'm impressed, because you have shown that what you can do

Maybe I'm just hard headed; which I have been told before, but if you throw 10 lbs of boost on 302 with a power adder, and then throw the same power adder on a 351 with the same boost. Your still going to make power ( might not be the most power out there for that combo). It all breaks down to the efficiency of the power adder. Which is what you're saying

I thought I just answered the question about stroked engines and rpm's with power adder.

Now the technology issue. I KNOW, I KNOW, I KNOW, But
Technology is not a replacement, It just makes life easier

What do you think? Your insight is appreciated

Last edited by mghoward74; 04-23-2011 at 08:56 PM.
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post #12 of 20 Old 04-23-2011, 09:34 PM
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Ever seen a single turbo 67mm mustang make over 800rwhp ? Nope, you haven't. Imports do though. Wonder why that is.[/QUOTE]

They make that power because their running a ##### load of compression on top of a lot boost. Which you can do
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post #13 of 20 Old 04-24-2011, 01:57 AM
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mghoward thanks for the kind words, I do appr it!

I do agree, but really it is one's opin if they want to make 600-700rw on a 302 based or 351 based stroker. Either can do it no prob. In this hobby it really comes down to what you want to spend haha!
I stayed 302 based as I already had many 302 parts (intake, distributor, etc)

Also, this has to be king of 331/turbo vids...ok maybe top 10 atleast haha


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post #14 of 20 Old 04-24-2011, 02:01 AM
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post #15 of 20 Old 04-24-2011, 03:38 AM
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Quote:
Originally Posted by mghoward74 View Post
Hey 10secgoal!!!

Your really not that smart yourself

I guess you cant look at the bigger picture or are you just focusing on one word at a time. The YS was just a reference to the bigger is better statement, as well as the dick joke, but I guess you cant see that huh.
One word ? Very well. Here are two for you. BACK PRESSURE.

408 cu. inch and a MP T70. Did it work? Look inside....

Hope you washed your feet. Or I'm sure they taste like ####

Here's the problem with your knowledge base. "I have been told." Bigger was obviously better.
My 302, non stroker made more rwhp that his 408 with the exact same turbo.
How did I do with my last word ? cuz i is "not that smart"
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post #16 of 20 Old 04-24-2011, 10:26 AM Thread Starter
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Using my Cap N' Crunch Decoder ring and filtering out the pissing match...thank you for your input. I was rather certain that a larger stroker would be choked off with a smaller turbo, but wanted to find some real-world examples.

I've had great results from 302s and turbos as small as a 66 mm...easily ran mid 10s and eventually in the high 9s...I guess that I'll stick to what I know works...I'll probably try to build a 4-bolt 331 and slap a PT-76 on with a blow through carb from CSU...that should put a smile on my face for sure.

And if my funds prove to be small as they usually are, I'll just slap the mpt-70 on a stock short block and keep the power reasonable...should still hit 10s with the C-4 in it.

Thanks again.

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post #17 of 20 Old 04-24-2011, 10:38 AM
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Quote:
Originally Posted by Radrick50 View Post
I'll probably try to build a 4-bolt 331 and slap a PT-76 on with a blow through carb from CSU...that should put a smile on my face for sure.

Thanks again.
That just makes me smile thinking about it haha!

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post #18 of 20 Old 04-24-2011, 02:22 PM
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Quote:
Originally Posted by 4Jenna View Post
mghoward thanks for the kind words, I do appr it!

I do agree, but really it is one's opin if they want to make 600-700rw on a 302 based or 351 based stroker. Either can do it no prob. In this hobby it really comes down to what you want to spend haha!
I stayed 302 based as I already had many 302 parts (intake, distributor, etc)

Also, this has to be king of 331/turbo vids...ok maybe top 10 atleast haha

YouTube - 331" Ford GT47-88 Turbo
Hey Chris!!!!

I just peeeee'd my pant

thanks for sharing bud!
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post #19 of 20 Old 04-24-2011, 02:23 PM
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Quote:
Originally Posted by Radrick50 View Post
Using my Cap N' Crunch Decoder ring and filtering out the pissing match...thank you for your input. I was rather certain that a larger stroker would be choked off with a smaller turbo, but wanted to find some real-world examples.

I've had great results from 302s and turbos as small as a 66 mm...easily ran mid 10s and eventually in the high 9s...I guess that I'll stick to what I know works...I'll probably try to build a 4-bolt 331 and slap a PT-76 on with a blow through carb from CSU...that should put a smile on my face for sure.

And if my funds prove to be small as they usually are, I'll just slap the mpt-70 on a stock short block and keep the power reasonable...should still hit 10s with the C-4 in it.

Thanks again.
LMFAO!!!!

Cap N Crunch Decoder ring!!!!

Sorry for the pissing contest on your thread!
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post #20 of 20 Old 04-24-2011, 02:32 PM
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Quote:
Originally Posted by 10secgoal View Post
One word ? Very well. Here are two for you. BACK PRESSURE.

408 cu. inch and a MP T70. Did it work? Look inside....

Hope you washed your feet. Or I'm sure they taste like ####

Here's the problem with your knowledge base. "I have been told." Bigger was obviously better.
My 302, non stroker made more rwhp that his 408 with the exact same turbo.
How did I do with my last word ? cuz i is "not that smart"
You still haven't PM'd me the address to your shop!!!

Anyway bud You're right

I'm wrong
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