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| how to make a stock 4 cyl fiero fast (Page 2/20) |
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Slammed Fiero
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JAN 14, 11:23 PM
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| quote | | Originally posted by 88Fiero2M4: Cut the Cat off, K&N filter, Remove the A/C belt, Comp Cam, and Roller Hydrolic Lifters. That will put you over the 140 hp mark and you will out run the stock V6 Fieros. Want to go faster yet. Put on the Holly Throttle body, Get the new Intake Manifold, and header, and Port and Polish. with all that you should find a little over 200 HP, After that it starts to get real expencive. |
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Holy Sh1T dude..are you on the pipe? I hope this is a joke! Do all that crap to the duke and it will still be slow as hell. The duke isn't a performance motor ..save your money and swap something in. All that stuff above MAY get the Duke to 100RWHP ..On a GOOD day. JM
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88Fiero2M4
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JAN 14, 11:52 PM
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| quote | | Originally posted by Slammed Fiero:
Holy Sh1T dude..are you on the pipe? I hope this is a joke!
Do all that crap to the duke and it will still be slow as hell. The duke isn't a performance motor ..save your money and swap something in. All that stuff above MAY get the Duke to 100RWHP ..On a GOOD day. JM |
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My entire Family were raised and born as Mechanics. My cousin worked at a Proformance shop in Ft Collins, where they were good and bringing the most out of any engine and car.
They took a Chevelle with a 350 and pulled 1300 HP out of it.
A 21 year old friend of mine also a Mechanic and a Body man who can take and do anything he wants with a Piece of Metal. Says of a 350 that just finding the right cam for it will net 600 Hp out of that car. Both he and his boss say that and both are Ford men, and both Own proformance cars and Muscle cars. Both My friend and My cousin say that with the right cam and lifters alone could put the 2.5L in my Fiero Above 200 HP.
I have heard from several mechanics from Back yard shops and from Dealer shops say that just removing the Cat on some cars can bring as much as 50 More hp since they are so restrictive on an engine. This was also from a My Cousin who worked in this shop. Note My cousin had a Dyno to prove it.
Most of all the Mechanics that told me this told me not to say that they said it cause it would make them loose there job, It is not something that is to be shared outside a Mechanics shop due to the fact that if most people knew it they would all be removing the Cat.
If you dont believe it, then Explain why in 1970 cars were pushing 400 Hp and just 10 years later with the only major change to engines was a Cat that those same engines were making half the Horse Power?
Example, Put a Potato in your tale pipe in your car, Then tell me what HP rating you get then. I would bet you cant even get 1 hp out of it. Now lets do something else.
take a potato and cut a hole in it and stuff it into your exaust. I bet you get it running but it is very sluggish. It is due to a badly Restricted exaust system. What does a Cat do? It restricts the Exaust system wich is a definate Power loss. Want proof? Take a car that dosnt have a Cat on it and put one on it. Tell me what happined. I bet it was alot slower.
Now I am not trying to clame that the duke will give you 50 Hp if you remove the Cat, Lets look more realistic. I would guess that how my 86 ran after I removed it that it was about a 15 hp gain. You havnt driven my 86 Fiero but after I Removed the Cat, took off the AC belt and Put in a K&N Filter it reached 125 MPH on flat ground and in just under a mile. My 88 will not hit that going down hill after 10 miles.... its lucky to even find 100 MPH. Now Explain to me why you dont think that my way will reach 140 HP and when I have my 86 Running and done with just what I said, I will Get it on a Dyno and prove it. ------------------
Don Pottorff
Red 88 Fiero 2M4
Silver 86 Fiero 2M4
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88Fiero2M4
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JAN 15, 12:04 AM
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Slammed, I just have one question and I hope that I dont offend you, What do you do for a Living? as in what is your Job?
Where you Born with a Wrench in your hand like all the people I know? All the people I know can Tear down and rebuild an engine in just a matter of a few hours.
and Most of my Friends Mechanical work is all they know.... its there life
My friend that I talk about that works at a body shop. His car that he is working on is a 95 Ford T-Bird.
Its only Modifications to date are A set of Lightweight Pullies, a Jet Proformance chip, and a Hooker Exaust system. He took it out and Raced against his bosses 03 Ford Mustang Mach 1 and Kept up with it, I would love an explination to this? The Mustang was being drivin by Someone who is not a slouch at driving in a straight line, and the T-Bird weighs about 1500 Lbs more then the mustang.[This message has been edited by 88Fiero2M4 (edited 01-15-2004).]
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chester
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JAN 15, 02:04 AM
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| quote | Originally posted by 88Fiero2M4:
Both My friend and My cousin say that with the right cam and lifters alone could put the 2.5L in my Fiero Above 200 HP.
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Sorry, got to back Slammed on this and call  Oh, and yes, been there, done that - got the tshirt... Rob D.
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The Dirty Rat
Chopped, dropped and just plain NASTY!
383 Stroker MPFI with N2O
2.5" Drop
11" Brakes
17" Revolutions
RCC Coilover Suspension
Updated June 29 '03 www.dirtyratracing.org [This message has been edited by chester (edited 01-15-2004).]
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virii01
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JAN 15, 02:09 AM
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Oh boy
| quote | Originally posted by 88Fiero2M4:
My entire Family were raised and born as Mechanics. My cousin worked at a Proformance shop in Ft Collins, where they were good and bringing the most out of any engine and car.
They took a Chevelle with a 350 and pulled 1300 HP out of it.
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OK, possible, but how many thousands were in the heads alone? How much boost was it running? What kind of fuel did it take, alcohol I assume?
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A 21 year old friend of mine also a Mechanic and a Body man who can take and do anything he wants with a Piece of Metal. Says of a 350 that just finding the right cam for it will net 600 Hp out of that car.
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Ok, that's incorrect. Go find a mid 80's fullsize van or subrban w/ a 350 in it, heck even give it a fresh stock rebuild, but throw any cam you want in it, custom grind or whatever, and it will be no where near 600 horsepower. 600 HP out of a 350 requires much much more than a cam change, such as aftermarket ported heads, high compression (or boost), high rise intake or boost, etc etc.
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Both he and his boss say that and both are Ford men, and both Own proformance cars and Muscle cars. Both My friend and My cousin say that with the right cam and lifters alone could put the 2.5L in my Fiero Above 200 HP.
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Wrong, like I stated above, it would take a heck of a lot more work than that to get a 2.5L to 200 HP. If it were as simple as a cam and lifter change, I'm pretty sure more people would be doing that.
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I have heard from several mechanics from Back yard shops and from Dealer shops say that just removing the Cat on some cars can bring as much as 50 More hp since they are so restrictive on an engine. |
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This may be possible in extreme situations, but power gained from exhaust change is dependent on original output of the motor and flow characteristics of the stock system.
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If you dont believe it, then Explain why in 1970 cars were pushing 400 Hp and just 10 years later with the only major change to engines was a Cat that those same engines were making half the Horse Power?
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That is also untrue. Having a catalytic converter is one of many reasons that vehicles in the 70s and 80s made less power than those in the 60s. In addition to catalytic converters, many other changes were made to motors in an effort to reduce emmissions and gas consumption, such as lower compression, different camshafts, smaller more restrictive intakes and carburators, etc.
| quote | Now Explain to me why you dont think that my way will reach 140 HP and when I have my 86 Running and done with just what I said, I will Get it on a Dyno and prove it.
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I already explained above, I'm patiently awaiting dyno results.
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FastIndyFiero
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JAN 15, 09:55 AM
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Slammed Fiero
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JAN 15, 10:14 AM
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 No I wasn't ""Born with a wrench in my hand"" I also wasn't born with Downsyndrome or what ever mental prob you have that makes you think a turd tractor motor like the duke can make 200hp.. Perhaps if you weld 2 of them together and make a straight 8 you will get 200hp ..but there is no chance in hell of a duke making 200hp Most people can't get 200hp out of a pushrod 3.4!!! go look at the post in gen chat about the dyno day!! Damm , you typed all that BS for nothing , I doubt anyone read it , I know I sure as hell didn't... the duke is a tractor motor... a turd.. PS... 2003 Mustang Mach1 3300Lbs
2003 T-Bird 3800 Lbs
1995 T-Bird 3550Lbs Feel free to question me on the weights of the vehicles Mr. Good Wrecnh... or call me... 905-845-1646 http://www.kennedyford.ca I should be here for the rest of the day...My Uncle owns the place....incase you didn't get it it's a ford dealership..and I got the weights right from the book. You probably used the same calculator to determine the Mustang and T-Birds weight as you did to calculate that you can get 200hp out of a iron TURD!
Damm nOObs. JM
THE SBC PUNISHER [This message has been edited by Slammed Fiero (edited 01-15-2004).]
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Butter
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JAN 15, 10:37 AM
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Well this is how I made my stock 4 cylinder faster-- I added 4 more cylinders 
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MiZer
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JAN 15, 11:26 AM
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can anyone else feel the love? ------------------
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Jncomutt
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JAN 15, 11:34 AM
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no way will the duke put out that much power, (No offense dude) But... with a few mods, you may be able to keep up with the V6. I ran my 84 down the 1/4mi at a whopping 17.0. It sounds slow, and well, yes it is, lol. The thing is, I have also seen a share of V6 guys run down the track in the low/mid 17s. With some mods, you'll still be slow as hell, but you might be able to beat one or two high mileage tired out V6 guys. Just a thought.. 
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