TSP ported TB 
TSP ported TB
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Joined: Apr 2004
Posts: 749
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From: Chandler, Arizona
I have been very skeptical of three of the mods everyone does.
1) Free Ram Air, I just don't see it, you are pulling air off the radiator, it's got to be hotter. I just raised the front of my airbox and sealed the back.
2) Ported TB: Just doesn't seem to be anything to be had here and you proved my hunch to be correct. Also, everyone tries to get the butterfly plate to 90 degrees. Tell you the truth, opening a valve from 85 to 90 degrees will not increase flow one bit.
3) Pulley: I'm sure this is worth a little bit, but not the 8 to 10 people claim. The lower inertia of the balancer is worth less than 1 hp in 4th gear. Worth more in the lower gears because the engine accelerates more quickly. However, I wasn't willing to sacrifice my A/c in Arizona.
So with cutout, Stainless Works headers through CATS, and a TSP 224R camshaft my car dynoed 381 hp today. That's right in line with other 224/header cars that have the above three mods.
1) Free Ram Air, I just don't see it, you are pulling air off the radiator, it's got to be hotter. I just raised the front of my airbox and sealed the back.
2) Ported TB: Just doesn't seem to be anything to be had here and you proved my hunch to be correct. Also, everyone tries to get the butterfly plate to 90 degrees. Tell you the truth, opening a valve from 85 to 90 degrees will not increase flow one bit.
3) Pulley: I'm sure this is worth a little bit, but not the 8 to 10 people claim. The lower inertia of the balancer is worth less than 1 hp in 4th gear. Worth more in the lower gears because the engine accelerates more quickly. However, I wasn't willing to sacrifice my A/c in Arizona.
So with cutout, Stainless Works headers through CATS, and a TSP 224R camshaft my car dynoed 381 hp today. That's right in line with other 224/header cars that have the above three mods.
!LS1 11 Second Club
Joined: Apr 2003
Posts: 7,133
Likes: 2
From: Miami
I gained 1 mph with each of the 3 items listed above, as they went on my mod list, for a total of 3 mph gained at the traps. Tangible gains.
Plus, I run AC in Miami (much needed) all the time with the pulley- no problems.
Plus, I run AC in Miami (much needed) all the time with the pulley- no problems.
TECH Enthusiast
Joined: Apr 2004
Posts: 749
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From: Chandler, Arizona
3 mph gain is right at 30 hp gain. So if I do these three things I'll put out 411 hp which would be extremely high for a stock head, 224 cammed car. I don't doubt that you picked up 3 mph, but they were probably different nights, different weather, and different track conditions. Too many variables. I would think that with a 224 cam and stock heads the most I've seen is around 390, so maybe 10 hp for all of the mods combined would be more realistic.
Thanks for the input on the A/C, that's good to know.
Thanks for the input on the A/C, that's good to know.
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Joined: Aug 2003
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Originally Posted by glennhl
I have been very skeptical of three of the mods everyone does.
1) Free Ram Air, I just don't see it, you are pulling air off the radiator, it's got to be hotter. I just raised the front of my airbox and sealed the back.
2) Ported TB: Just doesn't seem to be anything to be had here and you proved my hunch to be correct. Also, everyone tries to get the butterfly plate to 90 degrees. Tell you the truth, opening a valve from 85 to 90 degrees will not increase flow one bit.
3) Pulley: I'm sure this is worth a little bit, but not the 8 to 10 people claim. The lower inertia of the balancer is worth less than 1 hp in 4th gear. Worth more in the lower gears because the engine accelerates more quickly. However, I wasn't willing to sacrifice my A/c in Arizona.
So with cutout, Stainless Works headers through CATS, and a TSP 224R camshaft my car dynoed 381 hp today. That's right in line with other 224/header cars that have the above three mods.
1) Free Ram Air, I just don't see it, you are pulling air off the radiator, it's got to be hotter. I just raised the front of my airbox and sealed the back.
2) Ported TB: Just doesn't seem to be anything to be had here and you proved my hunch to be correct. Also, everyone tries to get the butterfly plate to 90 degrees. Tell you the truth, opening a valve from 85 to 90 degrees will not increase flow one bit.
3) Pulley: I'm sure this is worth a little bit, but not the 8 to 10 people claim. The lower inertia of the balancer is worth less than 1 hp in 4th gear. Worth more in the lower gears because the engine accelerates more quickly. However, I wasn't willing to sacrifice my A/c in Arizona.
So with cutout, Stainless Works headers through CATS, and a TSP 224R camshaft my car dynoed 381 hp today. That's right in line with other 224/header cars that have the above three mods.
So with cutout, Stainless Works headers through CATS, and a TSP 224R camshaft my car dynoed 381 hp today. That's right in line with other 224/header cars that have the above three mods
Trending Topics
Pulley: I'm sure this is worth a little bit, but not the 8 to 10 people claim. The lower inertia of the balancer is worth less than 1 hp in 4th gear. Worth more in the lower gears because the engine accelerates more quickly. However, I wasn't willing to sacrifice my A/c in Arizona.
pulley helped me out about a tenth in the quater
pulley helped me out about a tenth in the quater
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I think with a car that has not had a tune, the ported TB leans it out and therefore increases HP. But If your A/F is already good and you have to retune for the extra air, there are no gains.
!LS1 11 Second Club
Joined: Apr 2003
Posts: 7,133
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From: Miami
Originally Posted by glennhl
3 mph gain is right at 30 hp gain. So if I do these three things I'll put out 411 hp which would be extremely high for a stock head, 224 cammed car. I don't doubt that you picked up 3 mph, but they were probably different nights, different weather, and different track conditions. Too many variables. I would think that with a 224 cam and stock heads the most I've seen is around 390, so maybe 10 hp for all of the mods combined would be more realistic.
Thanks for the input on the A/C, that's good to know.
Thanks for the input on the A/C, that's good to know.
Originally Posted by glennhl
3) Pulley: I'm sure this is worth a little bit, but not the 8 to 10 people claim. The lower inertia of the balancer is worth less than 1 hp in 4th gear. Worth more in the lower gears because the engine accelerates more quickly. However, I wasn't willing to sacrifice my A/c in Arizona.
So with cutout, Stainless Works headers through CATS, and a TSP 224R camshaft my car dynoed 381 hp today. That's right in line with other 224/header cars that have the above three mods.
So with cutout, Stainless Works headers through CATS, and a TSP 224R camshaft my car dynoed 381 hp today. That's right in line with other 224/header cars that have the above three mods.
You need to get a 25% march pulley and put it against a stock pulley and look at the differences. They work. 6-10 hp is 6-10 hp it's just a negligable gain, nothing that you are gonna feel SOTP.
Also you could go Dyno your car again on the same dyno and get totally different numbers. That show that your TB did show some gains. But there are too many dyno sheets showing about a 6 RWHP gain average for a Well Ported TB And you are one of the only people running around saying that they got no gains from a ported TB. Either you got a bad unit, innacurate dyno or Just 6 rwhp is really hard to track with any small atmospheric change you could gain or lose 6 rwhp in a heart beat.
Throttle bodies are a good mod, once you've done almost all the other bolt on's. Also most people know that ported TB's show better gains with cammed cars than with stock cammed cars.
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Joined: Mar 2002
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From: ft worth tx
Originally Posted by glennhl
3 mph gain is right at 30 hp gain. So if I do these three things I'll put out 411 hp which would be extremely high for a stock head, 224 cammed car. I don't doubt that you picked up 3 mph, but they were probably different nights, different weather, and different track conditions. Too many variables. I would think that with a 224 cam and stock heads the most I've seen is around 390, so maybe 10 hp for all of the mods combined would be more realistic.
Thanks for the input on the A/C, that's good to know.
Thanks for the input on the A/C, that's good to know.
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Joined: Apr 2004
Posts: 749
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From: Chandler, Arizona
You guys are talking me into the pulley and ported tb with all your posts. So what are the downsides to these mods. Remember I live in AZ so overheating is always a concern. Are there any driveability issues with the ported TB?
Southfl.02.ss,
There is a horsepower estimator located at: http://www.speedworldmotorplex.com/calc.htm
Plug in 115, then 118 with a 3500 pound weight and you'll see a 34 hp increase needed to gain those 3 mph.
Southfl.02.ss,
There is a horsepower estimator located at: http://www.speedworldmotorplex.com/calc.htm
Plug in 115, then 118 with a 3500 pound weight and you'll see a 34 hp increase needed to gain those 3 mph.
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Joined: Mar 2002
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From: ft worth tx
Originally Posted by davered00ss
I think with a car that has not had a tune, the ported TB leans it out and therefore increases HP. But If your A/F is already good and you have to retune for the extra air, there are no gains.
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Joined: Apr 2003
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From: Miami
Originally Posted by glennhl
You guys are talking me into the pulley and ported tb with all your posts. So what are the downsides to these mods. Remember I live in AZ so overheating is always a concern. Are there any driveability issues with the ported TB?
Southfl.02.ss,
There is a horsepower estimator located at: http://www.speedworldmotorplex.com/calc.htm
Plug in 115, then 118 with a 3500 pound weight and you'll see a 34 hp increase needed to gain those 3 mph.
Southfl.02.ss,
There is a horsepower estimator located at: http://www.speedworldmotorplex.com/calc.htm
Plug in 115, then 118 with a 3500 pound weight and you'll see a 34 hp increase needed to gain those 3 mph.
Let's put it this way. I had stuffed a 231/237 cam in there (large cam at the time) with stock heads and stock TB. It responded very well to the Super Sucker Ram Air and the Jantzer ported TB which came after the cam swap.
So, as mentioned by someone else in this thread, Ported TB gains are more significant for Cammed applications when compared to stock internal applications. I did not gain 30hp, but the mph increase was significant enough (due to better intake when going down the track).
After being tuned for the cam and stock TB, when I bolted on the ported TB, I did have some cold start idle issues. After the head swap the car was retuned and things are fine again.
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Joined: Apr 2003
Posts: 791
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From: Tulsa, Ok
Originally Posted by glennhl
You guys are talking me into the pulley and ported tb with all your posts. So what are the downsides to these mods. Remember I live in AZ so overheating is always a concern. Are there any driveability issues with the ported TB?
i don't think there is a downside to the pulley either. i guess if you had a stereo system you might need the charging. i have never had any problems with over heating sitting in dallas traffic for 2 hours (in a 440rwhp car). this was with the AC blowing ice cold as well. my temps never got above 182* either.
both of these mods, i believe, have proven themselves over and over to be good mods.
Staging Lane
Joined: Feb 2004
Posts: 66
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[QUOTE=glennhl]You guys are talking me into the pulley and ported tb with all your posts. So what are the downsides to these mods. Remember I live in AZ so overheating is always a concern.
I live in El Paso, TX a couple hours away (temps are similiar 100-115+ in the summer) I have a pulley, ported throttle body, and a cam (110 LSA) and I have no issues except the 91 octane gas (run electron blue 116 octane every so often to help with that). Nice mods at a low price. Go for it. If for some odd reason you do not like the results keep your stock stuff and change back.
I live in El Paso, TX a couple hours away (temps are similiar 100-115+ in the summer) I have a pulley, ported throttle body, and a cam (110 LSA) and I have no issues except the 91 octane gas (run electron blue 116 octane every so often to help with that). Nice mods at a low price. Go for it. If for some odd reason you do not like the results keep your stock stuff and change back.
Originally Posted by glennhl
1) Free Ram Air, I just don't see it, you are pulling air off the radiator, it's got to be hotter. I just raised the front of my airbox and sealed the back.
I really don't think it'll hurt though - it's all in your head.
Launching!
Joined: Nov 2002
Posts: 257
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From: Fort Carson, CO
Originally Posted by Unusual T/A
The tb does not lean things out.