Ralph Wiggum Moar Powar Babeh Lifetime Members 19,323 Member For: 19y 4m 28d Gender: Male Location: Perth Posted 22/04/15 07:58 AM Share Posted 22/04/15 07:58 AM Hub dyno will read higher again. You haven't lost any power. The larger diameter wheels reduce the ramp rate when running the car up on the dyno it reads lower. Link to comment Share on other sites More sharing options...
ratter Member 6,793 Member For: 18y 8m 24d Gender: Male Location: @ my laptop Posted 22/04/15 08:02 AM Share Posted 22/04/15 08:02 AM diameter may be the same depending on what tyre was used but weight placement will be different with the 20's, but either diameter change or weight placement change will affect the reading because it affects how the car accelerates on the road/track Link to comment Share on other sites More sharing options...
singh87 Member 50 Member For: 11y 7m 1d Gender: Male Posted 22/04/15 08:27 AM Author Share Posted 22/04/15 08:27 AM So is mean I havent lost any power is the wheels or tyres mak diff.. Link to comment Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,323 Member For: 19y 4m 28d Gender: Male Location: Perth Posted 22/04/15 08:28 AM Share Posted 22/04/15 08:28 AM Yes is means that. 3 Link to comment Share on other sites More sharing options...
ratter Member 6,793 Member For: 18y 8m 24d Gender: Male Location: @ my laptop Posted 22/04/15 08:32 AM Share Posted 22/04/15 08:32 AM didn't your dyno guy explain any of this to you? Link to comment Share on other sites More sharing options...
singh87 Member 50 Member For: 11y 7m 1d Gender: Male Posted 22/04/15 08:41 AM Author Share Posted 22/04/15 08:41 AM He said bigger and wider tyres mak dyno read low , bt u havent loss any power, they r sticky to rollers. Link to comment Share on other sites More sharing options...
Bizkets is Drunk? Too heavy needs boost Member 5,929 Member For: 11y 6m 14d Gender: Male Location: Adelaide Posted 22/04/15 08:51 AM Share Posted 22/04/15 08:51 AM They are sticky to rollers? Link to comment Share on other sites More sharing options...
barnz Member 3,047 Member For: 11y 3m Gender: Male Location: Brisbane Posted 22/04/15 09:15 AM Share Posted 22/04/15 09:15 AM I have just put my 19's back on cause 1 of the 20's has a slow leak which turned out to be a crack on the inside edge if the rim, 2 cracks infact. Frankly I was over the way it drove on 20's anyway.Car feels same same power wise, in fact if anything the wider 20's gave the illusion of more power as they spun easier than the 245 19's due to cheap rubber vs decent rubber.Maybe don't get caught up in numbers and see how it feels with both as Ralph said. Link to comment Share on other sites More sharing options...
masda74 To Loud Gold Donating Members 4,112 Member For: 13y 2m 21d Gender: Male Location: WA, Perth Posted 22/04/15 11:54 AM Share Posted 22/04/15 11:54 AM Far out, after reading all that I feel like I am Chinese now.Confusing alright. Link to comment Share on other sites More sharing options...
(Locky) Member 85 Member For: 11y 1m 18d Gender: Male Posted 22/04/15 12:38 PM Share Posted 22/04/15 12:38 PM You ford guys are to strung up on a figure A dyno is a tuning too.. will get a big change in peak power readings with a range od changes likebrand of dynomode of the runambient temp reading (or in some cases not connected and makes higher figure)tyres, a semi slick will read lower than a 2 year old china special tyre back to backAs said above the sticky fresh tyres may read lower on a dyno, but may just be an effect on the dyno or the added grip may even make you faster 1/4 mile time if that floats your boatDont get hing up on a peak power though either way.... Area under the curve will be a better car 2 Link to comment Share on other sites More sharing options...
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