On3 turbo kit for stock bottom end - Mustang Evolution

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Old 09-12-2016, 02:33 AM   #1
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On3 turbo kit for stock bottom end

Does anyone have a foxbody with the stock bottom end with a turbo kit on? Just seeing if it is unreliable and dangerious to the block or if it will be good.


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Old 09-12-2016, 10:54 AM   #2
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On3 turbo kit for stock bottom end

Would be no different then a supercharger and yes several people have done it. The key is in the tune and keeping the boost at a reasonable level.


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Old 09-12-2016, 12:48 PM   #3
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I have the complete top end done and with a turbo on maybe 8-10psi in hoping for 400-450rwhp. The block can take up to 500 right?


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Old 09-12-2016, 03:24 PM   #4
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Quote:
Originally Posted by Murdered5.0 View Post
I have the complete top end done and with a turbo on maybe 8-10psi in hoping for 400-450rwhp. The block can take up to 500 right?


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What is a completely done top end?
What heads?
What intake?
What cam?
What TB?
What MAF?
What injectors?

Listen a simple GT40 top end with stock cam and 10 lbs is a fun little car. Like the others have said the secret is in the tune. The tune will keep the car happy.

Also without knowing the condition of the bottom end the turbo will expose any weaknesses much faster as well.
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Old 09-12-2016, 04:15 PM   #5
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Trick flow heads
Lunati cam
Edelbrock intake
70mm throttle body
24# injectors


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Old 09-12-2016, 07:03 PM   #6
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Quote:
Originally Posted by Murdered5.0 View Post
Trick flow heads ? Which ones
Lunati cam ? Which one
Edelbrock intake ? Which one
70mm throttle body
24# injectors

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You probably have 170's which is nice for a 302.
The cam choice is important as a turbo cam like lobe separation and duration different than NA cams.
Various types of Eddy intakes.
I hope you have a bigger fuel pump.

How do you plan on tuning it?
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Old 09-12-2016, 07:33 PM   #7
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Yeah i was going to get the cam checked out and im going to be getting a different fuel pump, and im going to take it into a shop and have it dyno tuned. Not a crappy tune


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Old 09-12-2016, 10:25 PM   #8
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A 255 fuel pump will do the trick unless you really want to push the boundaries then a 340. Much more than that the stock lines will be the restriction and by then the block will be a weak link.

Also start checking to find a competent and reliable tuner in your area that knows about turbo foxes. Too many fly by night guys.
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Old 09-13-2016, 07:43 PM   #9
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Would the turbo over take the exhaust sound when im on it? I know at idle ill hear the cam and exhaust but a wot would there be any exhaust noise besides the turbo


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Old 09-15-2016, 06:57 PM   #10
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Youll hear a combination of the exhaust & whistling from the turbo during acceleration.
Another thing to keep in mind is turbo lag.It takes the exhaust gases time to get the turbine spinning before it begins spinning the compressor to create boost.The more heat you keep contained in the exhaust,the faster the exhaust gases will flow,to spin the turbine.A turbo blanket & heat wrap on the header(down to the collecter)helps alot.
An intercooler & methanol injection kit will help bring the air intake temps down to reduce the chances of detonation.Youll need to invest in a good set of spark plugs,1-2 heat ranges colder than stock,gapped between .032-.036
As the other guys have mentioned,fuel is probably the most important thing to pay attention to,in a turbo car,other than retarding timing 1-2° for every couple pounds of boost youre making.Get fuel & timing right & youll enjoy alot of safe power,but get either one of those wrong & youll be headed to detonation city.
Best of luck on the new toy
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