Just Dynoed the LSJ =)
Senior Member
Joined: 10-14-09
Posts: 2,279
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From: New Port Richey, Florida
Hmm. I thought you were supposed to see a little increase in boost if you only port the blower? It shouldn't be flowing less after being ported, it should flow more. Since this pumps air into the intake manifold, if your allowing more to be pumped into the same space shouldn't boost go up since it measure restriction? I have no idea if that's a 'good' number in terms of boost for your location / pulley but I don't think your supposed to see a decrease in boost after porting this blower (assuming its done right).
Guess I'm wrong, I dunno haha. What do people usually see for a drop from porting the blower only?
Did you do a dyno-run on this dyno before the mods? Cool numbers, take it to the drag strip!
Last edited by Mr.N00bLaR; Jan 23, 2011 at 01:11 AM.
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Joined: 04-26-10
Posts: 191
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From: Homestead, FL/fredneck, MD
i pulled on that dyno right before he did, i pulled 312. thats on the mods in my sig, swapping the k&n for a SRI(of unknown orgin). so it seemed to be about right for a dynojet.
It's just the cobalt gods rewarding him for sticking with the balt after all the bs it gave him
It's just the cobalt gods rewarding him for sticking with the balt after all the bs it gave him
True, there's gotta be less pressure at that area where air is being pushed out of the blower but I didn't think boost was measured there. I thought it was measured somewhere else in the mani (a place that would be unchanged by a blower only port) that would see an increase in pressure. It made sense (to me) because when you put a smaller pulley on (you get more air out similar to a port - in my head at least) you usually see an increase in psi unless you change the intake manifold / head / exhaust somehow.
Guess I'm wrong, I dunno haha. What do people usually see for a drop from porting the blower only?
Did you do a dyno-run on this dyno before the mods? Cool numbers, take it to the drag strip!
Guess I'm wrong, I dunno haha. What do people usually see for a drop from porting the blower only?
Did you do a dyno-run on this dyno before the mods? Cool numbers, take it to the drag strip!
something is wrong/good about your setup, either you don't know and we don't know, or you know and we don't know. no way a heat exchanger gives you 38hp+, something is up..... Not saying I don't believe you, just saying you have to be missing something.... stock at 240hp + some cooling mods? that is 60hp less than guys running big power mods on the lsj. I would poke around your car a bit.
something is wrong/good about your setup, either you don't know and we don't know, or you know and we don't know. no way a heat exchanger gives you 38hp+, something is up..... Not saying I don't believe you, just saying you have to be missing something.... stock at 240hp + some cooling mods? that is 60hp less than guys running big power mods on the lsj. I would poke around your car a bit.
if this is my case as well then if i take it to a mustang dyno it should be around the 210whp since they read lower numbers but then people will still not believe it. I really dont car if people do or dont. i just know the car runs very good for what and how it is right now.
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Joined: 04-26-10
Posts: 191
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From: Homestead, FL/fredneck, MD
if this is my case as well then if i take it to a mustang dyno it should be around the 210whp since they read lower numbers but then people will still not believe it. I really dont car if people do or dont. i just know the car runs very good for what and how it is right now.
yea true. and no joe didnt check the head as far as i know. i think the most we saw was the motor with no valve cover when we sawped to the black n polished one. it just looked very clean.
Senior Member
Joined: 10-06-05
Posts: 10,944
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From: Seneca, South Carolina
The inlet is usually where you want to focus your attention. The more air you can cram into the blower, the more power you can make. Been doing it in the cobra platform for a while now.
I'm surprised you saw an increase in boost at all to be honest. What are you revving to?
funny how most people just wont admit even when am showin a vis of it. so all the Dynos made that day where correct numbers except mine? lol believe it or not it doesnt matter to me as long as my car is doing fine.
Senior Member
Joined: 10-06-05
Posts: 10,944
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From: Seneca, South Carolina
I'm not claiming dyno problems. I'm just trying to figure out why your car defies the physics.
It's a fact that lower boost on the same pulley means you've free'd up where a restriction used to be, and that results in more power.
The stock blower with stock pulley on the stock exhaust makes 12psi @6500, and most dyno right above 200whp with a few hitting slightly higher numbers. But not as high as yours.
So do you understand why everyone is questioning your numbers? You made higher boost, which means a restriction somewhere, not more power, yet you made 240+whp. Do you have the torque on a graph anywhere?
It's a fact that lower boost on the same pulley means you've free'd up where a restriction used to be, and that results in more power.
The stock blower with stock pulley on the stock exhaust makes 12psi @6500, and most dyno right above 200whp with a few hitting slightly higher numbers. But not as high as yours.
So do you understand why everyone is questioning your numbers? You made higher boost, which means a restriction somewhere, not more power, yet you made 240+whp. Do you have the torque on a graph anywhere?
You have corrected and uncorrected numbers. The corrected numbers eliminated different factors such as you dynod in the winter so your numbers are higher because its cold out. Your corrected numbers will probably be in the high 220's depending on the dyno/how cold it was.
I'm not claiming dyno problems. I'm just trying to figure out why your car defies the physics.
It's a fact that lower boost on the same pulley means you've free'd up where a restriction used to be, and that results in more power.
The stock blower with stock pulley on the stock exhaust makes 12psi @6500, and most dyno right above 200whp with a few hitting slightly higher numbers. But not as high as yours.
So do you understand why everyone is questioning your numbers? You made higher boost, which means a restriction somewhere, not more power, yet you made 240+whp. Do you have the torque on a graph anywhere?
It's a fact that lower boost on the same pulley means you've free'd up where a restriction used to be, and that results in more power.
The stock blower with stock pulley on the stock exhaust makes 12psi @6500, and most dyno right above 200whp with a few hitting slightly higher numbers. But not as high as yours.
So do you understand why everyone is questioning your numbers? You made higher boost, which means a restriction somewhere, not more power, yet you made 240+whp. Do you have the torque on a graph anywhere?