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| adrian collins |
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Hi there can any one help me or tell me what are the best mods for my ba xr8 ute to get more or better low down power or better take off as it feels like it's quite sluggish but really screams throughout rev range past about 2500-3000rpm then she is really going
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| the sam |
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Welcome to the boss motor.
They are renowned for lacking low-speed grunt. Some good torquey extractors and 3.7s or 3.9 diff gears should help it launch a bit better.
_________________ LOW, LOUD AND LUMPY |
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| XR9UTE |
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and some underdrives and a flash tune.
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| adrian collins |
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Hi there yeah it's either pretty shot down low or it's good down low and really good and torquey when up higher in rev range, at the moment I have hm extractors high flo cats and stainless twin 2 1/2" to 3" back to twin 2 1/2" cat back, under drive pulleys capa flash tuner standard tunes with box, ss big mouth throttle body, growled cold air intake what sort of power will all this make roughly if any one has similar, also been looking into difillipo big boy cat back
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| XR9UTE |
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Oh, you already have all that. Short of upping the compression(like a 290) or supercharging about the only thing you can do now is the gears. The Big boy system will not help matters I'm afraid, you really need the comp and cams of the 290 to warrant that.
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| Benny D |
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want more power down low. stick either a 3v or a coyote into it.
_________________ 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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| the sam |
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{USERNAME} wrote: want more power down low. stick either a 3v or a coyote into it. Affordability might come into question on this one....
_________________ LOW, LOUD AND LUMPY |
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| Burns |
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Age: 35 Posts: 540 Joined: 9th Aug 2007 Ride: FG Ute, ED XR8 Sprint, GPZ900R Location: Leopold, Geelong |
Is it manual or auto?
My 240rwkw 6 Speed manual XR8 hauls a*** off the line and it still has factory diff gears
_________________ The Past: EF Fairmont, EL Fairmont 5.0, HR Special, NF Fairlane 5.0, GSX 250-F, BA II XR8, VS3 Ute, VS2 L67 Calais |
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| adrian collins |
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oh yeah its the 4 speed auto have driven same ute with 6 speed as more go take off and low down torque also will a custom dyno tune to suit will that improve it heaps or not?
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| Burns |
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Age: 35 Posts: 540 Joined: 9th Aug 2007 Ride: FG Ute, ED XR8 Sprint, GPZ900R Location: Leopold, Geelong |
yeah it will help but you will probably still want more, diff gears probably a good option for you then, 3.9's would probably be a good match for a 4 speed, just depends on wether thats what you want to do. You could also look at getting a hi-stall for your auto but it's probably something you dont want to stat messing with and havent heard of anyone putting a hi-stall in with the boss motor and unsure wether it provided good gains. Hopefuly someone can shed some light
_________________ The Past: EF Fairmont, EL Fairmont 5.0, HR Special, NF Fairlane 5.0, GSX 250-F, BA II XR8, VS3 Ute, VS2 L67 Calais |
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| EBXR8380 |
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Gears for sure, hi stall converter even 500 rpm higher will help ...
Talk to the guys at Bluepower... Make sure you get a reputable hi stall converter or you'll have issues, they can be fussy!!! Run a good cooler... Maybe change cam timing ??? But must be done by someone who knows what he's doing...
_________________ As in ZOOM 126 edition |
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| AUXR8 2 |
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get incontact with Herrod Motorsport one of the Best afa v8 gear goes.....
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| adrian collins |
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hi there just wondering if some one can tell me if a set of intake cam gears that advance the intake cams 4 degrees what sort of power will it make extra kws, alo will i have to get dyno tune to run these
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| data_mine |
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{USERNAME} wrote: hi there just wondering if some one can tell me if a set of intake cam gears that advance the intake cams 4 degrees what sort of power will it make extra kws, alo will i have to get dyno tune to run these Not worth it. Unless you can do all the labour and tuning yourself. (i.e. essentially free) As already said, with the 4 speed auto, diff gears 3.9 or 4.11 will get it boogying.
_________________ 1998 DL LTD in Sparkling Burgundy, daily, 302W, stereo, slow |
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| adrian collins |
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If j installedthem my self would j have to tune or would the computer pick it up and run it self
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