|
08-29-2009, 06:55 PM | #201 | |||||
4v>3v>2v
Join Date: Jun 2004
Location: Pacific Northwest
Posts: 727
|
Re: Under Drive Pulleys..and the problems they cause.
Quote:
Quote:
Bill, you know NA SVT wrote that silly post just so I can illustrate the copy and paste method without having to re-write everything. I'll give it a try and see how it works. Quote:
Argument 4: I’ve seen oil pumps fail with stock dampers. Answer: Sure, it happens. The oil pumps are a marginal design from the factory. Increasing RPM beyond the factory limited 6800 RPM or installing power adders (nitrous, blowers, turbo) are just a couple examples of things that can increase engine harmonics. That is not a reason to install an inferior product that further jeopardizes your engine. Quote:
Argument 2: “I’ve run a Steeda small damper aggressively for a long time and have had no problems” Answer: That’s not impossible. Varying production tolerances will make some oil pump gears more durable than others. Most people don’t want to find out the hard way. Quote:
Argument 3: We risk engine damage any time we install an aftermarket performance part on our cars. Answer: In some cases that may be true but for the most part it simply is not. H-beam rods, forged pistons, hardened oil pump gears, ATI damper, billet oil pump gears, intake and exhaust mods and tunes. The list goes on and on. Even things like nitrous and supercharging are relatively safe when applied properly. And the inherent risk in their use is a little more tempting when we’re talking 100+ horsepower gains VS 3 - 5 hp for an under drive damper. I'll just re-post the whole thing as it gets buried in the stack. And Todd, it would be nice if you would stop grouping the fluid filled damper in with all other small dampers as if they are one in the same. Whether you realize it or not, that is how your posts are interpreted. It should be made clear it is different even if it is not reccomended. |
|||||
09-02-2009, 01:14 AM | #202 | |
Registered User
Join Date: Nov 2007
Location: Greenville, SC
Posts: 2,554
|
Re: Under Drive Pulleys..and the problems they cause.
Quote:
Theres some good information!
__________________
03 white Mach1 JLT RAI | 1/2 spacer | Catback | 4.56s 7.76@87.8mph |
|
09-06-2009, 05:10 PM | #203 |
Doug aka "TK"
Join Date: Nov 2007
Location: Goldsboro, NC
Posts: 584
|
Re: Under Drive Pulleys..and the problems they cause.
CobraR
$49 Alternator Pulley = http://www.summitracing.com/parts/MCH-116/ $79 Power Steering pump Pulley = http://www.summitracing.com/parts/MCH-640/ Anyone figured out the safe way to ensure the EWP warning light works when it goes out!?
__________________
'03 Black Mach1 w/IUP - 5spd - 306rwhp 312rwtq - SCT Tuner ~ Air diverter ~ 1/2" Intake Spacer ~ CnL 85mm Maf & Trueflow pipe 18" Bullitts 255-40 & 295-35 ~ 10% Tint ~ Painted Calipers ~ Magnaflow Cat-back 3.5" Rolled Tips ~ '03 Cobra IRS ~ H&R/Eibach springs w/Bilstiens ~ FRPP 4.10 gears Mac Pro-Chamber ~ Hurst Short Throw Shifter ~ '01 Cobra Bumper w/Mach Chin spoiler WISH LIST:Full Length SFC's // 4pc March Pulleys // Ported Intake Manifold // Custom grind Cams |
09-16-2009, 09:19 PM | #204 |
Doug aka "TK"
Join Date: Nov 2007
Location: Goldsboro, NC
Posts: 584
|
Re: Under Drive Pulleys..and the problems they cause.
For those running the CobraR Alt & PS pulley:
do i have to get a shorter belt? what size?
__________________
'03 Black Mach1 w/IUP - 5spd - 306rwhp 312rwtq - SCT Tuner ~ Air diverter ~ 1/2" Intake Spacer ~ CnL 85mm Maf & Trueflow pipe 18" Bullitts 255-40 & 295-35 ~ 10% Tint ~ Painted Calipers ~ Magnaflow Cat-back 3.5" Rolled Tips ~ '03 Cobra IRS ~ H&R/Eibach springs w/Bilstiens ~ FRPP 4.10 gears Mac Pro-Chamber ~ Hurst Short Throw Shifter ~ '01 Cobra Bumper w/Mach Chin spoiler WISH LIST:Full Length SFC's // 4pc March Pulleys // Ported Intake Manifold // Custom grind Cams |
09-16-2009, 10:42 PM | #205 |
4v>3v>2v
Join Date: Jun 2004
Location: Pacific Northwest
Posts: 727
|
Re: Under Drive Pulleys..and the problems they cause.
1) Remove and measure your current belt with stock damper/pulley's.
2) Wrap a string around the damper and pulleys, leaving the tensioner in the relaxed position. Note the difference in inches between the string and your stock belt. 3) Install new pulleys, wrap string and get measurement. Subtract amount wrote down from step two and that is the new belt length you need. |
11-13-2009, 03:33 PM | #206 |
Doug aka "TK"
Join Date: Nov 2007
Location: Goldsboro, NC
Posts: 584
|
Re: Under Drive Pulleys..and the problems they cause.
Still debating the CobraR Alt & PS pulley's...
What kinda gains will I see from them!? You think it is worth the Cost? How hard is install?
__________________
'03 Black Mach1 w/IUP - 5spd - 306rwhp 312rwtq - SCT Tuner ~ Air diverter ~ 1/2" Intake Spacer ~ CnL 85mm Maf & Trueflow pipe 18" Bullitts 255-40 & 295-35 ~ 10% Tint ~ Painted Calipers ~ Magnaflow Cat-back 3.5" Rolled Tips ~ '03 Cobra IRS ~ H&R/Eibach springs w/Bilstiens ~ FRPP 4.10 gears Mac Pro-Chamber ~ Hurst Short Throw Shifter ~ '01 Cobra Bumper w/Mach Chin spoiler WISH LIST:Full Length SFC's // 4pc March Pulleys // Ported Intake Manifold // Custom grind Cams |
11-13-2009, 04:08 PM | #207 |
Registered User
Join Date: Nov 2007
Location: Greenville, SC
Posts: 2,554
|
Re: Under Drive Pulleys..and the problems they cause.
You would probably see no gains at all.
__________________
03 white Mach1 JLT RAI | 1/2 spacer | Catback | 4.56s 7.76@87.8mph |
11-13-2009, 05:09 PM | #208 |
The MODfather #7046
Join Date: Mar 2006
Location: Bloomsburg, PA
Posts: 1,360
|
Re: Under Drive Pulleys..and the problems they cause.
OMG, this thread is still going???
This is just people not able to make a "small" decision for themselves....and/or some people just love to argue no matter what. BOTTOM LINE.... If your spooked, or have second thoughts about it, Don't run them!!!! 99% of the time it's only gonna net ya under 10hp anyways. I don't think 10hp is even gonna get you half a 10th in the quater. Yes, some of us have had them on for years with no issues but, If your not as confident as some of us, JUST DON"T BUY THEM... Sorry to be prick but how many of these threads are we gonna have over the years????? The results never change...the arguments never change.
__________________
R-code17815 2003 Mach1 6-spd. Black Black Sunshine... The never ending "Work in Progress" RTCTTFMF |
11-14-2009, 01:38 PM | #209 |
4v>3v>2v
Join Date: Jun 2004
Location: Pacific Northwest
Posts: 727
|
Re: Under Drive Pulleys..and the problems they cause.
I believe he's talking about the pullies, not the balancer. Accessory pullies dont have any issues that would cause concern other than the alternator not charging until the engine reaches 1800'ish RPM.
The alt and PS pullies will probably net you about 3 - 5 horsepower. For some people that can be substantial. From a cost per dollar standpoint it is right in line or better than most other mods. At a certain point in the quest for more horsepower it becomes more about many small improvements. |
11-14-2009, 05:57 PM | #210 | |
Registered User
Join Date: Nov 2007
Location: Greenville, SC
Posts: 2,554
|
Re: Under Drive Pulleys..and the problems they cause.
Quote:
__________________
03 white Mach1 JLT RAI | 1/2 spacer | Catback | 4.56s 7.76@87.8mph |
|
12-12-2009, 07:57 PM | #211 |
Registered User
Join Date: Nov 2009
Location: The Other Side Of The Bridge , CA
Posts: 397
|
Re: Under Drive Pulleys..and the problems they cause.
Thanks for clearing this up I was going to buy them but now forget it. 15 HP is not worth the headache.
__________________
2003 Black Mach 1 stock motor with 11,000 miles. Bassani cat x-pipe and Borla Stingers catback. 18 inch Black Saleen Style Wheels with G-Force TA's, 265 35's front and 295 35's rear,Cobra rear spoiler, HR Super Sport springs, caster/camber plates, subframe connectors. Tinted front and back lights and black 40th Ann. emblems. |
12-14-2009, 11:16 PM | #212 |
Registered User
Join Date: Oct 2008
Location: Reno, NV
Posts: 472
|
Re: Under Drive Pulleys..and the problems they cause.
More like 3-6 hp.
__________________
'03 Automatic. No silencer, K&N FIPK, 3450# race weight, drag radials, cat back, custom tune, alum. driveshaft, intake spacer, raised scoop, underdrive pulleys, larger subframe connectors, synthetic engine oil, removed front sway bar, battery to trunk, 2.06 60', 12.99 @ 107.4 |
12-14-2009, 11:39 PM | #213 |
AUTOMACHTIC
Join Date: Oct 2007
Location: RTP/ N.C.
Posts: 4,813
|
Re: Under Drive Pulleys..and the problems they cause.
Mine were installed and Dynoed the same day 10hp and 12tq been on 2 yrs now BUT the rev limiter is set to 6,200 and an Auto dont miss shifts and using a cast crank !
__________________
UPGRADES...Tokico Illuminas Borla SS Catback , Steeda Underdrives , Strut Brace , HPM Lower K Brace , L /C Arms , U /C Arms , HPM PanHard Bar, K&N FRPK 2, GOODYEAR GT1 , MRT- H-Pipe , JLT VaporTraps , SLP-12'" Tips! , FRPP Shorty 1 5/8 Headers , Brembo D/S & PBR D/S Rotors ,FRPP Alum.DS ,Roys 3/8 Spacer , SVT Focus 255 pump SCTsw Chip PRO-DYNOjet NA 300.01hp /315tq (Auto) ,Innovate W/B ,Compucar Wet Kit (90jet) + Heater and E Gauge * 360 hp/385tq 12.5 -1/4 @112 |
12-15-2009, 07:17 PM | #214 |
Registered User
Join Date: Dec 2007
Location: beavercreek, oh
Posts: 4,695
|
Re: Under Drive Pulleys..and the problems they cause.
|
12-15-2009, 10:06 PM | #215 |
Registered User
Join Date: Oct 2008
Location: Reno, NV
Posts: 472
|
Re: Under Drive Pulleys..and the problems they cause.
Mine didn't seem to help much, didn't dyno them though.
__________________
'03 Automatic. No silencer, K&N FIPK, 3450# race weight, drag radials, cat back, custom tune, alum. driveshaft, intake spacer, raised scoop, underdrive pulleys, larger subframe connectors, synthetic engine oil, removed front sway bar, battery to trunk, 2.06 60', 12.99 @ 107.4 |
12-16-2009, 02:09 AM | #216 |
Nitrous Junkie
Join Date: Jul 2003
Location: Ohio
Posts: 7,299
|
Re: Under Drive Pulleys..and the problems they cause.
What spark plugs can I run with underdrive pulleys???
__________________
Phil PRB Machining, LLC http://www.prbmachining-absdeleteman...com/index.html Performance mods by Jeff Chambers, the owner/tuner of CRT Performance in Norwalk, Ohio http://www.crt-performance.com/ |
12-20-2009, 07:55 PM | #217 |
FOR SALE
Join Date: Jul 2008
Location: Bel Air, Maryland
Posts: 733
|
Re: Under Drive Pulleys..and the problems they cause.
off topic....
has anyone had any trouble with udp recently.... i mean that are sfi approved steeda is anyway |
12-20-2009, 10:07 PM | #218 |
Big Daddy
Join Date: Sep 2007
Location: Lawrenceburg, Ky.
Posts: 322
|
Re: Under Drive Pulleys..and the problems they cause.
I'm running the Steeda balancer, Steeda W/P pulley, Cobra R Alt. pulley, and Cobra R P/S pulley without any problems whatsoever.
__________________
Custom cams spec'd by nasvt,Accufab t-body, ported short runner by nasvt,Roy's 3/4" intake spacer,JLT RAI,AFM 10" filter,PMAS 95mm Velocity Maf,Stewart water pump,Even-flow cooling mod,Steeda UD damper,Steeda wp pulley,Cobra R alt. & p/s pulleys,ARH 1.750" Lt's & off road X-pipe,Magnaflow catback,Fidanza aluminum flywheel,fidanza 2.1 clutch and lightweight billet pressure plate, FRPP aluminum d/s. 345rwhp & 340rwtq with 98 cobra cams.....numbers with new cams coming soon! |
12-21-2009, 03:19 AM | #219 | |
Registered User
Join Date: Jun 2004
Location: Madera, CA
Posts: 7,687
|
Re: Under Drive Pulleys..and the problems they cause.
Quote:
I guess going through your old oil with a fine tooth comb upon oil changes? Never thought of that one?
__________________
Current Stable: NO stangs.....DON'T F'ING remind me. Previous stangs: 2003 Mineral Grey Cobra Vert 1965 Factory GT K Code Coupe - mostly original and numbers matching. 14.9 (best) GONE BUT NOT FORGOTTEN!! 2003 MACh 1 AB - MINE!..SLP LM1s, PHP Spacer, and a CAI, that wont' stop whistling. 2004 MACh 1 DSG - PHP spacer, BOrla Stingers, K and N CAI, Tune, X-pipe, 1" 1-piece raised shaker...yadda yadda. |
|
12-21-2009, 06:10 AM | #220 | |
Big Daddy
Join Date: Sep 2007
Location: Lawrenceburg, Ky.
Posts: 322
|
Re: Under Drive Pulleys..and the problems they cause.
Quote:
I was worried that running the underdrive Steeda damper in combination with the Cobra-R alternator pulley would cause battery charging probems, but none whatsoever. In Sean Hyland's book, he of course reccomends staying away from underdrive pulleys, but then in the back of the book he has a series of engine recipes for different horsepower levels. Every one of these recipes includes the Steeda damper....what kind of sense does that make?...lol.
__________________
Custom cams spec'd by nasvt,Accufab t-body, ported short runner by nasvt,Roy's 3/4" intake spacer,JLT RAI,AFM 10" filter,PMAS 95mm Velocity Maf,Stewart water pump,Even-flow cooling mod,Steeda UD damper,Steeda wp pulley,Cobra R alt. & p/s pulleys,ARH 1.750" Lt's & off road X-pipe,Magnaflow catback,Fidanza aluminum flywheel,fidanza 2.1 clutch and lightweight billet pressure plate, FRPP aluminum d/s. 345rwhp & 340rwtq with 98 cobra cams.....numbers with new cams coming soon! |
|
12-22-2009, 07:21 PM | #221 |
Mach Underhood
Join Date: Jan 2007
Location: FL
Posts: 1,677
|
Re: Under Drive Pulleys..and the problems they cause.
I have a March FluidDamper for sale.....
__________________
Stock 4.6 4V, Cobra Cammed: 11.63@117.84 - N/A T45 / 4.56 / Drag Radials - N/A 4V Video |
01-03-2010, 03:35 AM | #222 |
Registered User
Join Date: Mar 2007
Location: ox,CA
Posts: 177
|
Re: Under Drive Pulleys..and the problems they cause.
First of all sorry for adding onto to this tread, but I haven't seen this yet. How would a lighter flywheel affect engine with UDP's and/or without them?? just curious.
__________________
usual bolt on's |
01-03-2010, 07:18 AM | #223 |
Big Daddy
Join Date: Sep 2007
Location: Lawrenceburg, Ky.
Posts: 322
|
Re: Under Drive Pulleys..and the problems they cause.
No problems here
__________________
Custom cams spec'd by nasvt,Accufab t-body, ported short runner by nasvt,Roy's 3/4" intake spacer,JLT RAI,AFM 10" filter,PMAS 95mm Velocity Maf,Stewart water pump,Even-flow cooling mod,Steeda UD damper,Steeda wp pulley,Cobra R alt. & p/s pulleys,ARH 1.750" Lt's & off road X-pipe,Magnaflow catback,Fidanza aluminum flywheel,fidanza 2.1 clutch and lightweight billet pressure plate, FRPP aluminum d/s. 345rwhp & 340rwtq with 98 cobra cams.....numbers with new cams coming soon! |
01-03-2010, 03:46 PM | #224 |
Registered User
Join Date: Mar 2007
Location: ox,CA
Posts: 177
|
Re: Under Drive Pulleys..and the problems they cause.
alum fly what's the weight on that thing? did you notice any difference on the torque loss?
__________________
usual bolt on's |
01-08-2010, 05:08 AM | #225 |
4v>3v>2v
Join Date: Jun 2004
Location: Pacific Northwest
Posts: 727
|
Re: Under Drive Pulleys..and the problems they cause.
|
Currently Active Users Viewing This Thread: 2 (0 members and 2 guests) | |
|
|