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5.0 mustang performance add ons and questions

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Old 11-30-2009, 05:13 PM   #1
mstangblue123
 
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Thumbs up 5.0 mustang performance add ons and questions

I want to acheive about 350 wheel horsepower and it is a daily driver.
with these mods do i need to have i dyno tuned or what are other things that i can do to make it faster HERE IS WHAT I HAVE-

I have a 1990 Mustang LX 5.0 72K original miles. The auto trans has been rebult within the last 5k miles.

here are the mods INSTALLED
-shift kit
-K&N intake
-Flowmasters

I just bought NEED to be installed
-Gt40P intake manifold
-GT40 Cobra Cylinder HEads
-BBK shorty headers
-3:73 gears
-

Thanks
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Old 11-30-2009, 05:45 PM   #2
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with those mods, you'll need 10psi of boost to achieve 350whp
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Old 11-30-2009, 06:07 PM   #3
lxman1
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Yep, you might be close to around 250 rwhp with those mods.
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Old 11-30-2009, 06:21 PM   #4
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what other mods can I get, but still keep my car reliable and a daily......Forced induction and nitrous is not an option......if i cannot acheive that then what can I realisticly acheive?

I also have been told to get a bigger throttle body such as 65 or 75mm and i was thinking of getting a venom chip which claims to add 50hp or so....and possibly a an e303 cam --let me know what other performance options I have.....

I have heard that the intake manifold will give me about 15ish hp and anywhere from 40-60hp from cobra cylinder heads and 10-15hp from headers and exhaust...is any of this true?

Thanks

Last edited by mstangblue123; 11-30-2009 at 06:22 PM. Reason: .
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Old 11-30-2009, 06:58 PM   #5
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you need a better H/C/I to hit the 300 rwhp mark along with a dyno tune
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Old 11-30-2009, 07:03 PM   #6
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haha what is H/C/I? and would a performance chip really help me out that much?
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Old 11-30-2009, 08:26 PM   #7
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Quote:
Originally Posted by mstangblue123 View Post
haha what is H/C/I? and would a performance chip really help me out that much?
Heads/cam/intake and no
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91 mustang 5.0 lx,306 shortblock,E-303 cam,ported and polished E7's,rebuilt stock T-5,bbk E/L shorty headers,with their 2 1/2" o/r H-pipes,70 mm maf,3G alt.,upr adj. upper c/a's 3:73 gears. race weight with driver:3260,only a 100 lbs. more than the 85

85 mustang: rest in piece

Best time 13.7@ 102 mph 2.074 60' on street tires(in the '85)
Best time 14.3@ 96 mph 2.13 60' on street tires(in the '91)
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Old 11-30-2009, 09:56 PM   #8
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Quote:
Originally Posted by mstangblue123 View Post
haha what is H/C/I? and would a performance chip really help me out that much?
Expect to easily spend a few thousand in parts alone if you want to reach those goals. You won't make those numbers without some serious work - and even with these parts, I doubt you'll reach that number. You might as well sell all the parts you've accumulated and start from scratch if you're serious about that mark, because it's going to take ALOT to get a stock block 5.0 into that territory.
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Old 12-01-2009, 09:20 AM   #9
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If i cannot reach that goal then that is fine for now.....I do not think that I am off to a bad start with
--cobra gt40 cylinder heads
-gt40p intake manifold
- flowmaster EXhaust
-K&n intake
-BBK headers
-3:73 (even though these don't add to hp)

I hope to soon have a bigger throttle body, and performance chip.....i am unsure of what those mods will put me at..... i might possibly buy a cam...what would be a good cam for low to midrange power??? I want something that will accelerate quickly and instantly..i don't need somehting that will add to top speed or top end performance....any help would be great......thanks
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Old 12-01-2009, 12:48 PM   #10
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dont spend your money on a chip,not worth it imo
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91 mustang 5.0 lx,306 shortblock,E-303 cam,ported and polished E7's,rebuilt stock T-5,bbk E/L shorty headers,with their 2 1/2" o/r H-pipes,70 mm maf,3G alt.,upr adj. upper c/a's 3:73 gears. race weight with driver:3260,only a 100 lbs. more than the 85

85 mustang: rest in piece

Best time 13.7@ 102 mph 2.074 60' on street tires(in the '85)
Best time 14.3@ 96 mph 2.13 60' on street tires(in the '91)
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Old 12-01-2009, 12:55 PM   #11
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Quote:
Originally Posted by mustangsneverdie View Post
dont spend your money on a chip,not worth it imo
its not just opinion, its a fact. his car does not have enough stuff done to it to justify a chip. ESPECIALLY one thats bought on the internet.

the only chips that are worth a damn, are the ones that are custom tuned TO your car AT a dyno shop.
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Old 12-01-2009, 01:05 PM   #12
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I think you should do a LOT of research before you buy anything else.
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Old 12-01-2009, 02:12 PM   #13
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why is forced induction out of the question? you can have a reliable dd with a blower
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Old 12-01-2009, 07:17 PM   #14
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Anyone know where i can get a new AOD transmission? it needs to be able to handle 300hp
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Old 12-01-2009, 08:03 PM   #15
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ok, this is my two cents on everything...

-the mods you are going to install are good, im guessing along with the headers you are going to get a mid pipe of some kind, if you dont already have one
-i would definitely get a 65 or 70mm throttle body and a matching mass air meter
-as far as a cam, the e303 is pretty good for an off the shelf cam, obviously a custom grind is best... definitely flowtech, the link that was posted... is a good place to ask
-the AOD can handle 300hp if you just build it right, shift kit, stall converter and possibly bands and clutches, my cousin's 89 has a 347 stroker with a procharger and he has the aod, he also has a manual valve body...
-for the rear gears, 3.73's are great, i have 4.10's and i cant complain, i knew it would increase the highway cruising rpm... about 2000 at 60 mph.... just dont forget to have a speedo gear for the trans... i needed a 23 tooth, idk for sure what you would need with the 3.73's tho, there are charts out there to help you out

300 horses are possible with enough money lol, a set of injectors, 24lb, an adjustable fuel pressure regulator and 255lph fuel pump wouldnt be a bad idea once you have a good head/cam/intake set up... cant say anything bad about AFR heads... of course it would run about 1500 bucks for a set, but it would flow a lot better than the gt-40's

oh and dont get a chip, get it dyno tuned like everyone has said


i guess it was a different thread with the flowtech link so here you go http://www.flowtechinduction.com/
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With 2.73's
Best 1/4
15.647 @ 89.46 with a 0.25 R/T
Best 1/8
10.135 @ 71.77 with a 0.18 R/T

With 4.10's
Best 1/4
14.854 @93.7 with a -.074 REDLIGHT
Best 1/8
9.597 @ 74.01 with a .098 R/T

Last edited by Black89LX; 12-01-2009 at 08:09 PM. Reason: spelling
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Old 12-02-2009, 05:35 PM   #16
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Go with the TrickFlow stage 1 cam over the E303. It has a broader powerband and more duration on the exhaust side to help Ford heads breathe. Also, go with Magnaflow mufflers over the Flowmasters. They flow much better. A good set of headers and High flow H-pipe will help as well.
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1988 5.0 WC T5 LX HB (Original Owner)
Oxford white
Saddlebeige interior.
TF Track Heat
BBK 70MM TB
C&L 73MM MAF
24lb injectors
Trickflow TW heads with upgraded dual springs
TrickFlow stage 1 cam
Magnaflow Cat-back
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Old 12-02-2009, 07:00 PM   #17
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first off the E303 cam is trash dont let anyone tell you different. actually all letter cams rnt very good. yes i have one but i basically got it for free and didnt have time to find another. look into the comp extreme energy cams.

with those mods dont hope for much over 250rwhp. i have slightly better heads and a 5spd and only make 275rwhp. that aod is going to net you less hp.

a venom chip or any chip ordered from the internet will be the biggest waste of money. a n/a setup with stock parts does not need a "chip". yes i said stock because they come stock on a production vehicle.

also you will not come close to 350rwhp with a n/a 302. the trickflow topend kit will net you close to 300rwhp.

you need some sort of stroker to make 350rwhp

why is n2o out of the question? if used properly it is perfectly safe
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SVO GT40x Aluminum Heads, FRPP F303 Cam, Trick Flow Track Heat Intake w/ 3/8" spacer, 3.73s, Full Exhaust and Suspension

13.024 @ 105.8mph w/ 1.914 60' getting closer to 12s..

This Car is For Sale
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Old 12-02-2009, 07:00 PM
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