Drivetrain Link/List of mods for S to increase HP?
Agreed. But, when you're to the stage 3 part...hell, might as well spend it!
by saying: if i knew then what i know now i would't have spent the money on the cai. i purchased the cai thinking i was getting some hp gain. if i thought it was just a cool sound making thingy i would have spent the money elsewhere....though i do admit, it's harmonic interplay with the milltek is pleasing!
i may speak for a minority of this minority by saying: if i knew then what i know now i would't have spent the money on the cai. i purchased the cai thinking i was getting some hp gain. if i thought it was just a cool sound making thingy i would have spent the money elsewhere....though i do admit, it's harmonic interplay with the milltek is pleasing!
by saying: if i knew then what i know now i would't have spent the money on the cai. i purchased the cai thinking i was getting some hp gain. if i thought it was just a cool sound making thingy i would have spent the money elsewhere....though i do admit, it's harmonic interplay with the milltek is pleasing!
Here's the way in which I see it. I come from the old school(it's all relative) of modding. In the old days, one of the standards we used for mods was the cost limit of $100 per horsepower. If it was over this, blah. Under, you were in good shape. Now I know the rule gets broken for parts that work as a system, yada, yada, but it's a good gauge. So here we go. (install costs are not usually included, as everyone has different aptitudes)
Pulley - Approx 15hp about $115. So $7.60 per HP. Great.
Cam - Lately seen at 10hp About $400 $40 per hp. Good.
You get to CAI's you're at 2-3hp at $200-$300. At the limit.
Header - Probably 10hp+ depending on brand. $200-$1000. Could be great to good.
Injectors - needed to make power, no payback.
Head - 15-30+ depending on brand. Could be $66/good to crap.
So you see where I'm going. I could fine tune a list like this if everyone agrees what mods make what power etc. It's hard to make the list accurate when someone claims 25ft.lbs. for an intake.
Pulley - Approx 15hp about $115. So $7.60 per HP. Great.
Cam - Lately seen at 10hp About $400 $40 per hp. Good.
You get to CAI's you're at 2-3hp at $200-$300. At the limit.
Header - Probably 10hp+ depending on brand. $200-$1000. Could be great to good.
Injectors - needed to make power, no payback.
Head - 15-30+ depending on brand. Could be $66/good to crap.
So you see where I'm going. I could fine tune a list like this if everyone agrees what mods make what power etc. It's hard to make the list accurate when someone claims 25ft.lbs. for an intake.
So I can get a pulley that makes a pretty good gain and NOT have to get software?
Is there a quick link to the different pulleys?
I already have the CAI and I am not going to replace the exhaust
6th Gear
Joined: Aug 2007
Posts: 1,798
Likes: 11
From: CT
I can list off just about all of the pulleys I think:
11%
Forge
15%:
Webb
Helix
Craven Speed
Mini Mania
Palo Uber
KMT
Mini Madness
Alta
Palo Uber
Dinan (although that is general sold with a system)
16%
M7
17%
Helix
Craven Speed
Alta
19%
Mini Madness
Helix
Alta
I think that is all of them. Just Google the different makes or look them up in the vendor directory. And know, there really isn't a best pulley, they are all clamp on style. Some of them use as few as three bolts and some use as many as 6 bolts. The Alta v2 clamps on with a collar first and then the pulley attaches to the collar. Others use a hub which is held to the shaft by the same bolts that hold the pulley to the hub. Neither one of these designs are "better" just different ways of accomplish the same thing.
11%
Forge
15%:
Webb
Helix
Craven Speed
Mini Mania
Palo Uber
KMT
Mini Madness
Alta
Palo Uber
Dinan (although that is general sold with a system)
16%
M7
17%
Helix
Craven Speed
Alta
19%
Mini Madness
Helix
Alta
I think that is all of them. Just Google the different makes or look them up in the vendor directory. And know, there really isn't a best pulley, they are all clamp on style. Some of them use as few as three bolts and some use as many as 6 bolts. The Alta v2 clamps on with a collar first and then the pulley attaches to the collar. Others use a hub which is held to the shaft by the same bolts that hold the pulley to the hub. Neither one of these designs are "better" just different ways of accomplish the same thing.
Last edited by Some Guy; Jul 22, 2008 at 09:36 PM.
I can list off just about all of the pulleys I think:
15%:
Webb
Helix
Craven Speed
Mini Mania
Palo Uber
KMT
Mini Madness
Alta
Palo Uber
Dinan (although that is general sold with a system)
16%
M7
17%
Helix
Craven Speed
Alta
19%
Mini Madness
Helix
Alta
I think that is all of them. Just google the different makes or look them up in the vendor directory.
15%:
Webb
Helix
Craven Speed
Mini Mania
Palo Uber
KMT
Mini Madness
Alta
Palo Uber
Dinan (although that is general sold with a system)
16%
M7
17%
Helix
Craven Speed
Alta
19%
Mini Madness
Helix
Alta
I think that is all of them. Just google the different makes or look them up in the vendor directory.
5th Gear
Joined: May 2008
Posts: 855
Likes: 0
The pulley, cam, tune could yield 30-40hp and increased TQ across the whole rev range.
OK, so I already have a CAI on the car when I bought it.
It sounds like the best mods are
1. 15 or 17% pulley
2. One ball exhaust mod
3. Cold spark plugs (what does this do, and is a specific model better than others?)
4. Cams
5. ECU tune
Not sure if I will end up doing #4, 5, ECU might be a bit too much money and I am not sure I want to crack the engine to do cams (unless there is some super easy way to do it). Do the spark plugs really do anything?
It sounds like the best mods are
1. 15 or 17% pulley
2. One ball exhaust mod
3. Cold spark plugs (what does this do, and is a specific model better than others?)
4. Cams
5. ECU tune
Not sure if I will end up doing #4, 5, ECU might be a bit too much money and I am not sure I want to crack the engine to do cams (unless there is some super easy way to do it). Do the spark plugs really do anything?
OK, so I already have a CAI on the car when I bought it.
It sounds like the best mods are
1. 15 or 17% pulley
2. One ball exhaust mod
3. Cold spark plugs (what does this do, and is a specific model better than others?)
4. Cams
5. ECU tune
Not sure if I will end up doing #4, 5, ECU might be a bit too much money and I am not sure I want to crack the engine to do cams (unless there is some super easy way to do it). Do the spark plugs really do anything?
It sounds like the best mods are
1. 15 or 17% pulley
2. One ball exhaust mod
3. Cold spark plugs (what does this do, and is a specific model better than others?)
4. Cams
5. ECU tune
Not sure if I will end up doing #4, 5, ECU might be a bit too much money and I am not sure I want to crack the engine to do cams (unless there is some super easy way to do it). Do the spark plugs really do anything?
not much cracking to do, it's an overhead cam
we picked up 4 ft. lbs of torque just with plugs the other day
Which specific plugs and why do they work?
tune $350
Plugs $40
We have different ones for different sets of mods. These seem to work even better than the NGKs
yes it will work
will it be optimised? NO
I did ride in Colin's car today which was tuned before he dropped in the cam/header combo and it was running really well. We still plan to put it on the dyno here soon
hi,
great info nitro, thanks
a Dinan may be in my future, i have heard it will pass CARB etc,
does anyone in this thread know if the M7 strut bar clears the Dinan CAI top?
thanks in advance.
boxcars
great info nitro, thanks
a Dinan may be in my future, i have heard it will pass CARB etc,
does anyone in this thread know if the M7 strut bar clears the Dinan CAI top?
thanks in advance.
boxcars
5th Gear
Joined: May 2008
Posts: 855
Likes: 0
Needless to say, it's not on the car now, and waiting to be traded for something else.
Well this isn't the best thread for the M7 FSB...but since its already started I may as well add that I have this bar as well and on an 05' I did have a gap problem when I first put it on the car. But, after doing the water trick and weighting the hood shut with water softener salt bags and a week of heat cycling with normal driving it now looks normal, the insulation molded it self too the bar. No more gap, I still have my underhood insulation, and it looks great. Does the bar itself do much? I doubt it, but I like it anyway, and it doesn't hurt anything...at least not on my car. All I bought it for was the anti-shrooms and a little extra bling.
Also it clears my JCW intake by 10mm or so.
Also it clears my JCW intake by 10mm or so.
how to optimise?
1st Gear
Joined: Mar 2007
Posts: 45
Likes: 0
I can list off just about all of the pulleys I think:
11%
Forge
15%:
Webb
Helix
Craven Speed
Mini Mania
Palo Uber
KMT
Mini Madness
Alta
Palo Uber
Dinan (although that is general sold with a system)
16%
M7
17%
Helix
Craven Speed
Alta
19%
Mini Madness
Helix
Alta
I think that is all of them. Just Google the different makes or look them up in the vendor directory. And know, there really isn't a best pulley, they are all clamp on style. Some of them use as few as three bolts and some use as many as 6 bolts. The Alta v2 clamps on with a collar first and then the pulley attaches to the collar. Others use a hub which is held to the shaft by the same bolts that hold the pulley to the hub. Neither one of these designs are "better" just different ways of accomplish the same thing.
11%
Forge
15%:
Webb
Helix
Craven Speed
Mini Mania
Palo Uber
KMT
Mini Madness
Alta
Palo Uber
Dinan (although that is general sold with a system)
16%
M7
17%
Helix
Craven Speed
Alta
19%
Mini Madness
Helix
Alta
I think that is all of them. Just Google the different makes or look them up in the vendor directory. And know, there really isn't a best pulley, they are all clamp on style. Some of them use as few as three bolts and some use as many as 6 bolts. The Alta v2 clamps on with a collar first and then the pulley attaches to the collar. Others use a hub which is held to the shaft by the same bolts that hold the pulley to the hub. Neither one of these designs are "better" just different ways of accomplish the same thing.
11%
Forge
JCW size:
KMT
15%:
Webb
Helix
Craven Speed
Mini Mania
Palo Uber
KMT
Mini Madness
Alta
Palo Uber
Dinan (although that is general sold with a system)
16%
M7
17%
Helix
Craven Speed
Alta
KMT
19%
Mini Madness
Helix
Alta
KMT
I repair your list as my knowledge about the pulley market.
4th Gear
Joined: Feb 2008
Posts: 304
Likes: 1
From: Nashvegas
If you have not yet done the pulley upgrade, 15% is the best upgrade according to many on this board. Anything above that seems to put too much stress on the engine and may shorten engine life. Anything lower, and you are not maximizing the potential gain from going to the trouble of jacking the friggin' engine out of the car to get to the pulley.
One ball vs After market exhaust
Here is a quick (not) guide to some of the R53 exhausts out there:
https://www.northamericanmotoring.co...ad.php?t=23789
One ball vs After market exhaust
Here is a quick (not) guide to some of the R53 exhausts out there:
https://www.northamericanmotoring.co...ad.php?t=23789
4th Gear
Joined: Feb 2008
Posts: 304
Likes: 1
From: Nashvegas
One of NAM's strengths is the vast amount of historical discussions on different mods.
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