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Author Topic:   BEST BANG FOR BUCK
FASTFORD
Gearhead

Posts: 105
From: USA
Registered: Aug 2002

posted 09-27-2002 09:43 PM     Click Here to See the Profile for FASTFORD   Click Here to Email FASTFORD     Edit/Delete Message   Reply w/Quote
I was considering nitrous for my engine(289 with holley 600cfm 4bbl, headers and dual flowmaster exhuast), but from what you tell me, I should definately get a cam or something else instead. So now I have 4 options:
1. buy 1.7 rocker arms and install them myself
2. buy GT40P heads and pay for them to be installed
3. by a mild cam w/lifters and pay for installation
4. buy a 50hp shot of nitrous and install it myself
This motor has about 2,000 miles on it and I'm disappointed with the power...so I have to do something. I really don't want to risk screwing up my engine by trying to install something that I shouldn't b/c I have very little experience in that area. I also am on a budget...I know that it takes money to go fast, but I'm trying to do the best I can with the money I have. Please help...I'm trying hard to come up with a logical conclusion.
Thanks

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1967 Mustang coupe
originally a c-code 289 with a c-4 tranny, I added holley 600cfm 4bbl, edelbrock performer intake manifold, hooker competition headers, and dual 3 chamber flowmaster exhaust
exterior is acapulco blue with black vinyl top
interior is stock with a kenwood cd player
goal is to have a streetable muscle car that can run with a late model cobra mustang

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stroker man
Gearhead

Posts: 113
From: Denville NJ USA
Registered: Mar 2002

posted 09-27-2002 10:26 PM     Click Here to See the Profile for stroker man   Click Here to Email stroker man     Edit/Delete Message   Reply w/Quote
Fastford, i was thinking of n20 for my 408W, but i'm going to change cam' maybe manifold and carb, it would be cheaper to run n20, but getting the car just right, tuning fuel pressure, i decided not to do it, i like just brute power without power adders, so its a stuff decision to make on your car, let us know what you do.

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Mike Harris
Gearhead

Posts: 122
From: Oakfield, Ga USA
Registered: Jul 2002

posted 09-28-2002 08:26 AM     Click Here to See the Profile for Mike Harris   Click Here to Email Mike Harris     Edit/Delete Message   Reply w/Quote
"1. buy 1.7 rocker arms and install them myself"
Very little gain at all, you probably would not feel it.

"2. buy GT40P heads and pay for them to be installed
Without shaving the heads, you may very well lose some compression versus your stock heads. If you were doing other mods to go along with it, this might be a good idea. You'll have a good amount of money in it when you get someone else to do it.

"3. by a mild cam w/lifters and pay for installation"
You MAY see 12-15hp gain out of that with a perfect cam. Pretty expensive gain vs. value there.

"4. buy a 50hp shot of nitrous and install it myself"
Yes, i admit it....I am a nitrous junkie This is by far the best bang for the buck. You can find used system like this on the net all the time on alot of the mustang boards and they are relatively inexpensive. If you have forged pistons or even hyper-u's with the right gap you'll be able to do more than the 50HP shot. If that is the case, look for a Super Powershot System it goes from 50-125. One thing you may want to think about is that NOS's new sniper kit is only about $350 from places like Jeg's and Summit. It is adjustable from 50-150. Even if you only use the 50HP setting, that's just $7 per HP!!!
Hope this might help some.

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Mike Harris
MKZ Racing
home.isoa.net/~mharrisj

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Moneymaker
Administrator

Posts: 19704
From: Lyons, IL, USA
Registered: May 99

posted 09-30-2002 04:37 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
I personally am not of fan of the stuff, but to answer your question, Nitrous Oxide IS the best bang for the buck in your case.

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Alex Denysenko
Co-Administrator and Moderator/ non 65-66 Mustang owner sensitivity co-ordinator

NHRA/IHRA/SRA/MCA member
NHRA and IHRA SS/LA National Record Holder '00, '01, & '02
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Part time secret agent license #0089
Professional Manwhore
The Barry of BarrysGrrl

Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"

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MrWesson22
Gearhead

Posts: 1209
From: Dacula, GA
Registered: Sep 2000

posted 09-30-2002 10:23 PM     Click Here to See the Profile for MrWesson22   Click Here to Email MrWesson22     Edit/Delete Message   Reply w/Quote
What gears are you running?

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Neal

69 Gulfstream Aqua Grande
351C/4sp

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TomP
Gearhead

Posts: 4812
From: Delta BC Canada
Registered: Dec 99

posted 10-01-2002 01:27 AM     Click Here to See the Profile for TomP   Click Here to Email TomP     Edit/Delete Message   Reply w/Quote
the GT40P heads will be a nightmare for headers 'cause of the plug angle,earlier 351W heads or "normal" GT40's would be fine. The cam should be changed, i kinda liked the CompCam 280 Magnum on mild street 289-302's.

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Big D
Gearhead

Posts: 3680
From: WELLS, NEVADA
Registered: Nov 2000

posted 10-01-2002 06:01 AM     Click Here to See the Profile for Big D   Click Here to Email Big D     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by TomP:
the GT40P heads will be a nightmare for headers 'cause of the plug angle

You got that strait.. I have them on the 302 I just put in my '66,, and it aint pretty.. All you have to do is heat the hell out of them,, message a little with a 5' pry bar,, weld all the holes shut you created when heating them,, and they fit fine.. That's if you have another block on a stand that you can mount them on..

And,, you only have to take the headers off to change the plugs..

Somebody Kick Me..

Don

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64FalconF-16
Gearhead

Posts: 191
From: Republic Of Texas!! Temporarily living in KY
Registered: Feb 2002

posted 10-01-2002 07:33 AM     Click Here to See the Profile for 64FalconF-16   Click Here to Email 64FalconF-16     Edit/Delete Message   Reply w/Quote
You can buy the shorty headers that are made to fit 40P heads too. I'll bet for a ton extra in cash you can get the long tubes.

The problem with a 50 shot of N20 is you will want to got faster. Next thing you know you are pumping the full 150 shot in. Then, Your motor scatters. How much money did you spend?

The key is controlling yourself. As we all know. Speed is addicting and makes us do crazy things that cost $$$$ in the end to learn a lesson. If you can live with a 50 - 75 shot of N20 then do it. Watch out for that temptation to push it a little further without getting your motor right $$$ first.

my .02 worth.

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64 Pro-Street Falcon
351C 4V 8.1s in 1/8
79 Ford Bronco 4 X 4 Lifted 6"
400 9.9s in 1/8
70 Plymouth Cuda'
440 Magnum. 2600#
Race Car 6.90 in 1/8

[This message has been edited by 64FalconF-16 (edited 10-01-2002).]

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Mike Harris
Gearhead

Posts: 122
From: Oakfield, Ga USA
Registered: Jul 2002

posted 10-01-2002 03:17 PM     Click Here to See the Profile for Mike Harris   Click Here to Email Mike Harris     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by 64FalconF-16:
The problem with a 50 shot of N20 is you will want to got faster. Next thing you know you are pumping the full 150 shot in. Then, Your motor scatters. How much money did you spend?

Well, I am unfamiliar with his motor set-up, don't know if the pistons are forged, hyper-u's, or cast....but as long as they are not cast, it wouldn't make a hill of beans if 150 got sprayed on it. Nitrous has gotten a bad wrap over the years from alot of people that know nothing about it, trying to use it in large quantities and getting no help. Lots of people tried to run more than a 50 shot on cast pistons and had them fail as well as hyper-u's without the right gap. Alot of that can be overcome with tricks of the trade and knowledge on tuning. If you don't know then someone does so ask for help. If you have forged pistons and toast them or puke the motor with a 150 shot....you did not do your homework. People do all kinds of research for the best cam, intake, heads, etc, etc....but then get nitrous and expect to just put it on auto pilot. For the most part, the kits from NOS and others work fine out of the box on applications to 150 IF the person reads ALL the instructions and takes the time to learn a little about the stuff to begin with. I have a guy with a 93 Mustang with the stock bottom end (came with hyper-u's that year) that has over 70,000 miles on it, runs a 200 shot on it, and has never been in the motor to fix a thing. Drives it everyday. He races it a couple times a month at the strip and has been doing this for 2 years now. It is all how you apply it and tune it. It's kind of like someone buying a cam they see in a magazine with huge numbers and think they will get a big increase. It goes in and the car won't get out of its own way. Then you hear "That such-and-such cam is a piece of crap, don't get it", instead of, "I didn't look at the big picture and see what all was involved in selecting the right cam." No, large shots of juice is not for everyone, but the 50-150 range stuff is basic and for the power gains versus cost is hard to beat. Anyone who questions their level of knowledge on a kit can always ask for help, though alot of people don't like to. You have boards such as this, as well as the manufacturers to get help from and racers at the local tracks. Most people are willing to give help, even if they don't divulge all their secrets.

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Mike Harris
MKZ Racing
home.isoa.net/~mharrisj

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CometGT1974
Gearhead

Posts: 181
From: Asheville, NC USA
Registered: Jan 2002

posted 10-01-2002 05:51 PM     Click Here to See the Profile for CometGT1974   Click Here to Email CometGT1974     Edit/Delete Message   Reply w/Quote
I'm with Mike on this one.....go with the juice!!!!!

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