Beginner's guide to bolting-on power gains - Mustang Evolution

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Old 01-17-2013, 08:36 AM   #1
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Great write up. This answers all of those posts we see daily.
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Old 01-17-2013, 08:51 AM   #2
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Great write up. This answers all of those posts we see daily.
+1 I was thinking the same thing. Nailed it, great write-up!
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Old 01-17-2013, 09:50 AM   #3
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Precise and to the point. Written in a way even I could understand. Had I tried to formulate a question about this subject, I couldn't have found a better answer. Thanks.
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Old 01-17-2013, 11:08 AM   #4
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Excellent post. I had arrived at your conclusion about the CAI. They are mostly bling, I guess. Are you going to write an 'intermediate' article, also?
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Old 01-17-2013, 01:44 PM   #5
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Cliffy your are the man! Id like to thank you for this, mostly finished with my appearance mods, so adding power is next and now I have this write up to go by. Thank you!
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Old 01-17-2013, 02:03 PM   #6
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Great write up! I would really like to see a write up done for more advanced forms of power gain (Supercharge/Turbo) most people understand that these components are "bolt on", with the catch of having to upgrade engine components to support these changes. I would like to know how/why these changes need to made to the engine. If someone had a write up like that, it would be great.
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Old 01-18-2013, 10:24 AM   #7
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Really great write up. Very informative, even for those who aren't necessarily beginners.
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Old 01-18-2013, 10:41 AM   #8
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What can guys like me with the Mach 1 32 v do to improve performance that will not break the bank??
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Old 01-18-2013, 11:08 AM   #9
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I am not all that familiar with the Mach 1, however #2 is true for any factory tune on any mass-production car, and #3 if the stock 3.55's don't do it for you. Installing an aftermarket catted X-pipe and mufflers will likely help it breath better as well. I do not believe the intake on the n/a 4V suffers from the same issue as that on the PI 2V engines.

When Ford introduced the PI engine, raising output from 225 fwHP to 260, they used the same upper plenum as was used on the non-PI engines. Though adequate to meet the 260 fwHP claim it makes the engine fall flat after the peak output--that extra bit of air flow provided by the aftermarket designs let's it pull right up the the rev-limiter.

Similarly they carried over the 19 lb/h injectors from the non-PI engines, however they corrected that in the late 2002 production.
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Old 01-18-2013, 11:13 AM   #10
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Thank you!! Good stuff!!
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Old 01-18-2013, 12:38 PM   #11
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Good write up but I bet we will still have posts about the things you just mentioned
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Old 01-18-2013, 12:44 PM   #12
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Guaranteed...
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SOLD! - 2003 GT, UPR X, FRPP 24lb/h, Magnaflow, PP 70mm TB & plenum, Delta Force tuned,
Steeda UDPs, Ralco flywheel, RAM HDX clutch, 3.73s, 262 rwHP/305 lb-ft.

New ride (7/1/2013) 1998 Mercedes SL500-5.0L 32V VVT 326/347 HP/tq
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Old 01-18-2013, 08:54 PM   #13
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Someone should sticky this thread
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Old 01-18-2013, 09:04 PM   #14
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Someone should sticky this thread
+1
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Old 01-18-2013, 09:23 PM   #15
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Someone should sticky this thread
Was thinkin that As i was reading it. great post!
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Old 01-18-2013, 09:28 PM   #16
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Someone should sticky this thread
Indeed!

This is now a sticky
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Old 01-19-2013, 12:53 AM   #17
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Indeed!

This is now a sticky
Awesome!
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Old 01-19-2013, 04:24 PM   #18
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Awesome!
+1837, this will help many current and future members
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Old 01-21-2013, 12:31 PM   #19
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Thanks simple and to the point
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Old 01-21-2013, 12:56 PM   #20
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"Note that adding a super boombox audio system is NOT weight reduction" made me laugh. Great right up!
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Old 01-22-2013, 05:39 PM   #21
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Thank you for this awesome info! Now I have a few more ideas for what i can do to my car!
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Old 01-22-2013, 07:52 PM   #22
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Great write-up definantly helped give me ideas and low cost ways to make my stang a little faster. Thanks.

-Henry
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Old 01-26-2013, 02:40 PM   #23
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This is very good information. I didn't know about the stock (99-early 02) fuel injectors being so close to their max duty cycle at stock/near stock power levels.
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Old 01-26-2013, 03:08 PM   #24
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What needs to be done to a stock 99 cobra engine to safely support a supercharger running 6-7psi?
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Old 01-26-2013, 03:26 PM   #25
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What needs to be done to a stock 99 cobra engine to safely support a supercharger running 6-7psi?
My understanding is that although the non-supercharged Cobra 4.6 engines had forged steel crankshafts the connecting rods were still sintered metal as with the 2V engine, making 425 rwHP give or take the upper limit.

6 to 7 psi boost (after an intercooler) would be right at or slightly above that.

However it is a 14 year old engine, so pushing it that hard makes the real question "Do you feel lucky today?"...
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SOLD! - 2003 GT, UPR X, FRPP 24lb/h, Magnaflow, PP 70mm TB & plenum, Delta Force tuned,
Steeda UDPs, Ralco flywheel, RAM HDX clutch, 3.73s, 262 rwHP/305 lb-ft.

New ride (7/1/2013) 1998 Mercedes SL500-5.0L 32V VVT 326/347 HP/tq
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Old 01-26-2013, 04:23 PM   #26
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My understanding is that although the non-supercharged Cobra 4.6 engines had forged steel crankshafts the connecting rods were still sintered metal as with the 2V engine, making 425 rwHP give or take the upper limit.

6 to 7 psi boost (after an intercooler) would be right at or slightly above that.

However it is a 14 year old engine, so pushing it that hard makes the real question "Do you feel lucky today?"...
Ok, appreciate the feedback. I have heard this before..... what does the age of the engine have to do with anything (serious question) obviously if the pistons are sealing, the compression is correct. What would stop someone from going ahead with the install?
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Old 01-26-2013, 06:54 PM   #27
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Ok, appreciate the feedback. I have heard this before..... what does the age of the engine have to do with anything (serious question) obviously if the pistons are sealing, the compression is correct. What would stop someone from going ahead with the install?
Metal fatigue.

Anytime you boost an old engine (or a new one) and reach for its limits you are taking a chance. For that matter every time you run any engine up to redline at WOT you are taking a chance.

That's why dyno shops have you sign a waiver. I have personally witnessed three engines (one a KB blown, with stock internals, 2003 GT) blow while up on the rollers, and read/heard of many more. The GT blew at 390 rwHP and 5575 rpm, tossed one or more rods and caught on fire--very impressive!

There was some suspicion that the oil pump "gear" may have shattered. There have been a number of other mishaps reported on the forums that were under to well-under the 425 rwHP "rule-of-thumb"...

Here'a a KB 2.1 New-Edge blowing up:
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SOLD! - 2003 GT, UPR X, FRPP 24lb/h, Magnaflow, PP 70mm TB & plenum, Delta Force tuned,
Steeda UDPs, Ralco flywheel, RAM HDX clutch, 3.73s, 262 rwHP/305 lb-ft.

New ride (7/1/2013) 1998 Mercedes SL500-5.0L 32V VVT 326/347 HP/tq
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Old 01-26-2013, 07:23 PM   #28
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Wow, that hurts to watch. Feeling sorry for that dude.

You guys have to remember that engineers are given a budget to work with. My experience with this is that the budget is usually barely enough to get the job done. The stock holders want the most return on the dollar, ya know.
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Old 01-26-2013, 07:42 PM   #29
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Wow, that hurts to watch. Feeling sorry for that dude.

You guys have to remember that engineers are given a budget to work with. My experience with this is that the budget is usually barely enough to get the job done. The stock holders want the most return on the dollar, ya know.
I think Ford's engineers did a great job with the 4.6 2V. It was originally designed to produced 225 fwHP and then they pumped it up to 260 by making it breathe better. And it can handle 400 rwHP (470 fwHP)--or 2.1 times the original design goal--that's a pretty damned good amount of overhead.

To fault it for being what it is, is akin to faulting Miller Light because it's not Heineken...
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SOLD! - 2003 GT, UPR X, FRPP 24lb/h, Magnaflow, PP 70mm TB & plenum, Delta Force tuned,
Steeda UDPs, Ralco flywheel, RAM HDX clutch, 3.73s, 262 rwHP/305 lb-ft.

New ride (7/1/2013) 1998 Mercedes SL500-5.0L 32V VVT 326/347 HP/tq
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Old 01-26-2013, 07:53 PM   #30
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I think Ford's engineers did a great job with the 4.6 2V. It was originally designed to produced 225 fwHP and then they pumped it up to 260 by making it breathe better. And it can handle 400 rwHP (470 fwHP)--or 2.1 times the original design goal--that's a pretty damned good amount of overhead.

To fault it for being what it is, is akin to faulting Miller Light because it's not Heineken...
I was just saying that we can't expect the engines to out-perform the design intent. I agree, I think all the versions of 4.6L after 99 are great engines.
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Old 01-26-2013, 08:01 PM   #31
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I was just saying that we can't expect the engines to out-perform the design intent. I agree, I think all the versions of 4.6L after 99 are great engines.
Exactly, unfortunately 99.44% of the "2V bashing" you here is exactly that.

And I will repeat what I said in a rather verbose post above--those same Ford engine design engineers obviously felt that the 2V internals were not up to coping with 390 fwHP, or they would not have "forged" the '03/'04 Cobra engines...
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SOLD! - 2003 GT, UPR X, FRPP 24lb/h, Magnaflow, PP 70mm TB & plenum, Delta Force tuned,
Steeda UDPs, Ralco flywheel, RAM HDX clutch, 3.73s, 262 rwHP/305 lb-ft.

New ride (7/1/2013) 1998 Mercedes SL500-5.0L 32V VVT 326/347 HP/tq
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Old 01-26-2013, 09:02 PM   #32
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Ah... Sometimes I wish I would have held out for a 03/04
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Old 01-26-2013, 09:10 PM   #33
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Take anything engineered for a specific task, overload it by 200% and it will be right up near the breaking point--and most things will break long before that...

Here's an 800 rwHP S197 GT 500 letting go on a dyno...
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SOLD! - 2003 GT, UPR X, FRPP 24lb/h, Magnaflow, PP 70mm TB & plenum, Delta Force tuned,
Steeda UDPs, Ralco flywheel, RAM HDX clutch, 3.73s, 262 rwHP/305 lb-ft.

New ride (7/1/2013) 1998 Mercedes SL500-5.0L 32V VVT 326/347 HP/tq
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Old 01-28-2013, 03:26 PM   #34
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So I just bought my first car, 00 GT, and I want to put in more HP into it with a little bit more of sound of course. I was reading a few of these threads and I was thinking of adding a BBK Power Plus CAI system and maybe an Magnaflow exhaust system. What do you guys recommend?
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Old 01-28-2013, 04:28 PM   #35
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So I just bought my first car, 00 GT, and I want to put in more HP into it with a little bit more of sound of course. I was reading a few of these threads and I was thinking of adding a BBK Power Plus CAI system and maybe an Magnaflow exhaust system. What do you guys recommend?
Stock airbox acts like a CAI and a damn good one at that! Cliffy covers that in the writeup, IMO and his an aftermarket cai is a waste on a stocker..if you want loud go SLP LM1 you will not be disappointed, here is a video of mine..
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