Is this power safe?

Muscle GT

Muscle GT

Well-Known Member
#1
#1
So I researched this a lot last year, but I guess I was wrong. To answer questions off the bat, here is what I'm running:

-4.6 block with stock internals
-Vortech V2 S-trim
-Vortech Fuel pump 255lph
-3.25 pulley
-Intercooled

+ all other bolts ons and whatnot.

Currently putting down 371rwhp/368rwtq @ 10psi

I thought through my research that I would be able to conservatively put down around 425rwhp with stock internals... please correct me if I am wrong here. I thought I had read that through a lot of threads and stuff, but maybe I was just naive and didn't think about internals? :smash:

Anyway, I called the performance shop I use and they said they don't suggest putting anymore power on the block because its not safe. What I wanted to do was upgrade my fuel pumps (possibly adding the Boost-a-pump) and switch to a smaller pulley to hopefully make some more boost/more power. When I tuned it originally at MM, Joe said the fuel pump wasn't strong enough to make more power with the pulley I had.

What do you guys think? Thanks for any help/advice you can provide :)
 
N

NYstang

Well-Known Member
#4
#4
agreed, a lot is the tune- the general rule Ive heard for 99-04 4.6's is that 400rwhp is the safe point. beyond that, you start walking a thinner line and need a better and better tune.

how many lbs of boost are you pushing? it sounds like theres a few other things you could do(inlet/plenum, headers, exhaust) that could increase the power a bit, without stressing the engine under more boost.
 
Muscle GT

Muscle GT

Well-Known Member
#5
#5
Jims01 - Wow! That's amazing. Yeah i agree with you on the driver part as well. I dont rip my stang to pieces everyday of the week. It's my daily driver, so I take very good care of it

MR99SVTCOBRA & NYstang - good to know. currently pushing 10 pounds, but I know its capable of more with a smaller pulley. And especially since it's intercooled; that definitely helps. And yeah i got all exhaust and intake stuff done. Everything but headers - pain to install and I already love my exhaust setup
 
MineralGray02K

MineralGray02K

Administrator
Staff member
#7
#7
The tune is extremely important. My stock 2V block is 444 rwhp...... I'm probably on borrowed time but I have a safe tune. I also have a Vortech 255 pump but I added a 40AMP Kenne Bell BAP without having to swap out the 255 pump.

Sansone Ford did my tune FYI. You can contact 03Sonic here to talk to him if you want. Mustang Magic is good and on the forum here too.
 
Muscle GT

Muscle GT

Well-Known Member
#8
#8
MineralGray02K said:
The tune is extremely important. My stock 2V block is 444 rwhp...... I'm probably on borrowed time but I have a safe tune. I also have a Vortech 255 pump but I added a 40AMP Kenne Bell BAP without having to swap out the 255 pump.

Sansone Ford did my tune FYI. You can contact 03Sonic here to talk to him if you want. Mustang Magic is good and on the forum here too.
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Awesome! Thanks a lot Mike, I appreciate the help. Just sent you a PM as well
 
SVTommy

SVTommy

Active Member
#10
#10
I ran a pro charger with 366 rwhp at 10 psi for 35k miles on a stock 4.6 02 gt. I actually tried to blow it up at the track and it just kept running strong. Had a great tune
 
Muscle GT

Muscle GT

Well-Known Member
#11
#11
dsblk93gt said:
I'd get a KB BAP and like Alex said there are ways to improve power without raising the boost levels.
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Yeah I think i may go the BAP avenue. I'd loveee to do cams or longtubes but both installs are pretty involved from what I've seen and I don't have extra cash to thrown down on an install right now. I'm only a college student, gotta work with what I got ya know

Thanks for the help!
 
R

roush360r

Member
#13
#13
well i got 364hp 376tq and just under 100k miles on it. it can take more just go easy on timing and play it safe with a/f. i plan on putting cams in soon and more boost hopefully thatll put me about 420whp, if it lets go it lets go. but if your tuner says you need to upgrade the fuel system then i would. one wot pull with a lack of fuel will melt you down really quick.
 
Rob04Mach1

Rob04Mach1

Well-Known Member
#14
#14
My 99 Procharged GT had 384/384 at @ 8psi with a very safe street tune.
But then again it already had @ 60K on it when I put the Procharger on so I didnt want to push it :p
 
Chuckie B

Chuckie B

Well-Known Member
#15
#15
I'd say do the BAP, pulley & better tune...im @ 395rwhp and 433tq @ 10psi and Kenne Bells tune....so obv with me saying that and other people chime'ing in saying they've run more hp. go for it.

ps...when i take my car out...i drive my car like i stole it:3gears: with no motor issues.
 
Muscle GT

Muscle GT

Well-Known Member
#16
#16
Chuckie B said:
I'd say do the BAP, pulley & better tune...im @ 395rwhp and 433tq @ 10psi and Kenne Bells tune....so obv with me saying that and other people chime'ing in saying they've run more hp. go for it.

ps...when i take my car out...i drive my car like i stole it:3gears: with no motor issues.
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LOL sounds good

Thanks everyone for the responses! It's a huge help!
 
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