Stock Block

laxdman20 · Feb 16, 2006

I just installed a vortech V-2 sq with anderson power pipe. I droped it off at the tuners and he told me that I was probably looking at around 370-375rwhp. Well I just got a call yesterday saying that its making 408 rwhp and 415 ft. lbs. of torque. But at 4700 rpms my 38 # hr. injectors (the ones from vortech) are at 100% duty cycle, so he wants to throw 60 #hr's in there because of the power I want to make down the road. What I really want to know is how much power can I get out of this stock block and stock internals before I have to start worrying?

2002BLGT · Feb 16, 2006

laxdman20 said:
I just installed a vortech V-2 sq with anderson power pipe. I droped it off at the tuners and he told me that I was probably looking at around 370-375rwhp. Well I just got a call yesterday saying that its making 408 rwhp and 415 ft. lbs. of torque. But at 4700 rpms my 38 # hr. injectors (the ones from vortech) are at 100% duty cycle, so he wants to throw 60 #hr's in there because of the power I want to make down the road. What I really want to know is how much power can I get out of this stock block and stock internals before I have to start worrying?

hey , where you at in Va , dont know about all that , the 38s should be good to close to 450rwhp or more , I have seen cars with blowers and 30 lbs injectors go 380rwhp before before they were maxed out so I dont see how they are maxed out that soon .....if anything just step up to 42 they will definitely be enough , oh and to answer the question 400-420 is about the limit on stock internals ....

Kuestone · Feb 16, 2006

Step up to 42 lb injectors and get a richer tune to lower power to about 400 thats pretty much max safe hp on stock block well you could go a lil more no more then 430 but more then 400 and id worry everytime i punch it.

laxdman20 · Feb 16, 2006

Im up in alexandria. And the car is down at Excessive Motorsports in Manassas.

back_in_black · Feb 16, 2006

I would go up to the 60's, I did, and yes over 400 and you are pushing it !

03ghoststang · Feb 16, 2006

yeah 400 is the max even on a good tune at that power level is pushing it, all it takes is for something to go wrong and there goes your stock block. So i would start to save up for froged internals or forged short block

reddrgn01gt · Feb 16, 2006

You really don't want to go over 80% duty cycle with injectors. If you plan on making more power in the future get the 60s. You can always tune for less fuel but you can't for more. Just my .02.

laxdman20 · Feb 16, 2006

Well does anybody know a good brand of forged internals, cause it sounds like im gonna need them fairly soon.

sgarlic · Feb 16, 2006

There isn't a max HP the block can handle. It depends on the tune. As you have probably read, there are people making nearly 500 on the stock block with great tunes. There are also those who've blown up the stocker running less than 400 with crappy tunes, bouncing the rev limiter, etc. You're on borrowed time running a supercharger or turbocharger on stock internals period.. whether it's 6psi, 9psi, 14psi, etc.. just don't kid yourself and think just because you're around 400 that you're safe. Every blown application should realize this, and have a plan to forge down the road.

Bottom line, don't be surprised or dissapointed if you blow the stock engine up.. they aren't made for the kind of power most of us desire.

03GTconv · Feb 16, 2006

laxdman20 said:
Well does anybody know a good brand of forged internals, cause it sounds like im gonna need them fairly soon.

Yeah get on ebay and look for the seller SPEEDYPARTS, he has every forged internal setup for your 4.6, i suggest goin with his 4.6 281ci conversion to 302ci forged.

03GTconv · Feb 16, 2006

Yeah go to ebay and look up the seller speedyparts, he has every forged application for your 4.6 and 5.0. I suggest goin with the 4.6 281ci conversion to a 302ci, itll run u around 1900.00 if u wanna go cheaper u can get a forged setup for around 1000.00

2003 Mustang GT Prem Conv.
Charcoal Grey
246.5 RWHP 289.3 RWTQ
MAC CAI
bbk 75mm TB
C&L Plenum w/spacer
C&L 85mm Maf
SLP Loudmouth C/B
Diablo Predator
Eibach Sport Springs
2001 Cobra Front Bumper
Mach1 Chin spoiler
2004 Cobra Rear Bumber

Just added and Not Dynoed
BBK Ceramic LongTubes
BBk O/R H-Pipe

mineralgray2002 · Feb 16, 2006

Can you keep the stock block if you get forged internals? or do you need to get a new block with it? im new to the forced induction stuff and im looking at getting a blower really soon i just need to find out what else ill need to make it work fine without a worry of blowing it up

ADRENLN · Feb 16, 2006

your actual block is fine, you just have to forge the internals. some just buy a whole built block cause it is put together professionally which is what i plan to do

mineralgray2002 · Feb 16, 2006

which vortech blower whines the most? ive been looking at a kenne bell 1.7 because they are supposed to be like the best, but prices are to high so now i want the obnoxious whining sound from under the hood but still enough power to make it worth the money, im tryin to keep it with stock internals until i can get the money for the forged shortblock. What all rearend parts will have to be upgraded?

laxdman20 · Feb 19, 2006

mineralgray2002 said:
which vortech blower whines the most? What all rearend parts will have to be upgraded?

I dont know which one whines the most, but the V-1 has a pretty loud whine to it. Espically at idle. For the read end, you should upgrade your gears to some 373's or some 410's depending on what you want. I have 373's and love them. You can get away with not upgrading your axles as long as you arent going to be using any type of slicks, but I would plan on upgrading the axles anyway.

Mike97gt · Feb 19, 2006

get the 60's 100 percent duty cycle is BAD. you don't want to end up running lean.

BTW those good to X horsepower things like this injector is good till 400. that stuff is just a guide. some setups will need a bigger injector at a lower power level.

sil_stang02 · Feb 19, 2006

laxdman20 said:
I just installed a vortech V-2 sq with anderson power pipe. I droped it off at the tuners and he told me that I was probably looking at around 370-375rwhp. Well I just got a call yesterday saying that its making 408 rwhp and 415 ft. lbs. of torque. But at 4700 rpms my 38 # hr. injectors (the ones from vortech) are at 100% duty cycle, so he wants to throw 60 #hr's in there because of the power I want to make down the road. What I really want to know is how much power can I get out of this stock block and stock internals before I have to start worrying?

Hey man, I live here in fredericksburg va, how much did the shop charge you for the installation and tune?

laxdman20 · Feb 19, 2006

sil_stang02 said:
Hey man, I live here in fredericksburg va, how much did the shop charge you for the installation and tune?

Well the chip, programing it and the dyno pulls came out to around $600. But we decided to try the 42 # hr injectors and they worked just fine. It came out to $1052. I dont know what my numbers are yet. Excessive called up my buddy at work to tell him the numbers and how much the bill was (casue he knows all the guys down there) and he looked at me and said, "Your bill was $1052 but I'm not gonna tell you what your numbers were, you'll have to see it to believe it." I'll post them when I get them... The suspence is killing me.

laxdman20 · Feb 20, 2006

Numbers are in. 413 rwhp and 413 ft lbs of torque.

Will Smith · Feb 20, 2006

laxdman20 said:
Im up in alexandria. And the car is down at Excessive Motorsports in Manassas.

man that place is the pits. good clean shop but the prices there are outragious. They wanted to charge me 500 bucks to install some 3.73's and i alreayd had everything needed for it.

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