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| Vic |
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I think that I read somewhere that some underdrive kits can cause the power steering to be a little stiffer at low RPM.
_________________ 5.6L of carbon footprint. |
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| Aaron_EF8 |
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[quote=MrLandau]Aaron, the ASP website lists the single underdrive pulley that BPT sells as 25% underdriven on everything. The Ford Racing kit is only 22% on the altenator and 14% on the waterpump - this is using larger than stock alternator and waterpump pullies. The crankshaft pulley you have is much smaller than the Ford Racing set fitted to Barry_V's Love boat DC.
Shane[/quote] Ah ok, I wasn't sure on the size of the FRPP crank pulley. Vic - There isn't a difference in steering effort, having wider tyres, or slightly under-inflated tyres will make a lot more of a difference than the pulley. Regarding the AU harmonic balancer issues, could you bolt an e-series style balancer and pulley onto an AU motor, and use they pullies that way? |
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| XR6boi |
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can u get underdrive pulleys for a 4 liter 6? ive got an El xr6 i want to put them on?
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| millard455 |
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{USERNAME} wrote: can u get underdrive pulleys for a 4 liter 6? ive got an El xr6 i want to put them on? hell, that has to be the biggest thread mine Ive seen 
_________________ EL XR8 SERIES 2, 5SPD, HOT CHILLI RED, 200 ODD RWKW OF V8 FUN AND GAMES |
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| WARMACHINE |
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Tbh it should be made a sticky as theres no real guide for e series V8's, i suppose the search button works but it would be good to have a guide.
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| kato |
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I installed the BPT 3 piece set a few years ago, I think it's a worthwhile gain with no major side effects apart from low voltage at idle, which cures itself above 1500rpm, the motor revs freer & smoother with the pulleys on...
 Josh
_________________ EF XR8 5spd: 302ci /178rwkw |
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| harddriver |
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do u have pics of how both pullies set look?
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| ba_xr6bw |
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I Wana put an underdrive kit on my ba , does any 1 no if there's any side affects for the ba ? And what's a good brand ??
_________________ BANNED USER |
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| Johnson stroker |
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post it in 6 cyl if its a 6 cyl based question, my advice, talk to CMS. check the sponsors list here.
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| Willy |
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Hi All,
Does anyone know what the effect is (if any) of an underdrive system when using the airconditioner, let's say, on an EB V8? Since that pulley has not been changed, its drive should not be affected, but has anyone noticed any appreciable increase of operating temp when running the air conditioner? Odd thing: Some people here swear by underdrives, but others say they are not necessary. Will.
_________________ 1994 Black Pearl ED Fairmont V8 |
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| blue_oval_power |
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Does it make anymore power by changing the under drive pulleys?
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| XFWAGON |
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{USERNAME} wrote: Hi All, Does anyone know what the effect is (if any) of an underdrive system when using the airconditioner, let's say, on an EB V8? Since that pulley has not been changed, its drive should not be affected, but has anyone noticed any appreciable increase of operating temp when running the air conditioner? Odd thing: Some people here swear by underdrives, but others say they are not necessary. Will. I've never experienced any issues when using the A/C. And I would definitely swear by them. One of the most noticeable gains you will feel, thermo fan conversion and underdrives. {USERNAME} wrote: Does it make anymore power by changing the under drive pulleys? Yes. I'm not sure how much but some people have claimed 10-14hp. |
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| blue_oval_power |
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are there sets availible for au xr8?
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| Benny D |
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{USERNAME} wrote: are there sets availible for au xr8? nope. the au v8 motor is already underdriven from factory
_________________ BA XT V8. Ice Mint. 18" Speedys. XR6T LSD. Full Pacemaker twin 2 1/2inch Stainless Steel system. Custom CAI. Black XR interior with white trimming. Powerbond underdrive kit 25%. |
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| XR9UTE |
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AU's are not really underdriven like a set of aftermarket underdives. In fact after measurements it's barely any different to E-series. Unfortunately the AU's integrated crank pulley makes for difficulty in making as set.
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