'08 Diesel- SRT Conversion Plan - Page 2 - Jeep Garage - Jeep Forum

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  #13  
Old 07-02-2016, 11:53 PM
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Originally Posted by CobraMarty View Post
Actually you don't need to use the SRT knuckle. That is the whole point of what I am doing here. Similar to CB Engineering with the WK1nonSRT knuckle bolt on adapters to allow the use of bigger rotors and Wilwood calipers, I can use an adapter brackets which will bolt on to the WK1nonSRT knuckle and be able to use bigger diameter rotors and any or different calipers will be able to be bolted on. I will be able to use the stock WK1nonSRT calipers, WK1 SRT calipers, WK2nonSRT calipers or even WK2 SRT calipers or even some other caliper from another manufacture like Explorer 2 piston calipers.

WK1 SRT8 knuckles are made of 'unobtainium and expensivainium'. I do not and don't want to use them and don't have to use them. I can make a bolt on to the WK1nonSRT knuckle big brake setup for less than the cost of a set of used WK1 SRT knuckles. That is the point here.
Well good luck with that

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  #14  
Old 07-05-2016, 07:25 AM
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Re: '08 Diesel- SRT Conversion Plan

Parts ordered, should arrive in the next few days. Will mock up soon.
WK1nonSRT calipers and pads
WK2SRT 380mm (14.96") front rotor, ?not for US market

The real questions are-
Will the 380mm rotor and stock WK1nonSRT calipers fit under a set of rep 20" rims?
What is the WK2SRT rotor diameter? US market 350mm? other markets 380mm?
What is the real caliper mounting bolt hole dimension of WK1nonSRT knuckles? 6.5" or 5.16"?
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  #15  
Old 07-05-2016, 07:46 AM
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Originally Posted by CobraMarty View Post
Parts ordered, should arrive in the next few days. Will mock up soon.
WK1nonSRT calipers and pads
WK2SRT 380mm (14.96") front rotor, ?not for US market

The real questions are-
Will the 380mm rotor and stock WK1nonSRT calipers fit under a set of rep 20" rims?
What is the WK2SRT rotor diameter? US market 350mm? other markets 380mm?
What is the real caliper mounting bolt hole dimension of WK1nonSRT knuckles? 6.5" or 5.16"?
Yeah the wheels will fit but I believe you need the 20x10 ones. A lot of wk2 srt guys throw the wk1 srt reps on
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Old 07-05-2016, 08:04 AM
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Re: '08 Diesel- SRT Conversion Plan

Yeah I like the WK1 SRT wheels best. They 'are the SRT look'.

I was thinking of staggered, 20x9 front and 20x10 rears.
Do you think that the 20x9" fronts would fit over the bigger rotor?
Do most run 20x9 all around, 20x9front/20x10rear, or 20x10 all around?

Sorry for all the questions, and thanks for your input and help.
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  #17  
Old 07-05-2016, 02:05 PM
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Originally Posted by CobraMarty View Post
Yeah I like the WK1 SRT wheels best. They 'are the SRT look'.

I was thinking of staggered, 20x9 front and 20x10 rears.
Do you think that the 20x9" fronts would fit over the bigger rotor?
Do most run 20x9 all around, 20x9front/20x10rear, or 20x10 all around?

Sorry for all the questions, and thanks for your input and help.
No the 20x9 won't as it doesn't have the backspace.

I'd do 20x10 all around. On mine I run staggered lol
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Old 07-07-2016, 07:35 PM
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Re: '08 Diesel- SRT Conversion Plan

So got all the brake parts today.
All this because I think it just looks silly to see small rotors behind big rims.
Here WK1nonSRT 12.87" rotors behind 20" SRT rims.

The 380mm 15" '14 WK2SRT rotors fit right on to a WK1nonSRT wheel bearing and lugs.
The WK1nonSRT caliper barely fits over the 1.32" thick SRT rotor.
Need to space out the stock WK1nonSRT caliper 1.25" to clear the 15" rotor diameter. This will be done using an adapter bracket.

Braking improvement will be about 14% improvement.
Stock 13" rotor and 2" wide pads = 75.4 sq.in. brake swept area
SRT8 15" rotors and 1.95" wide pads = 85.92 sq.in. brake swept area which is 13.95% BSA.

More importantly the 15" rotor will significantly fill the 20" SRT rims. Only need just a bit over 17" inside diameter of the 20" rep SRT wheels. I think that it will even clear 20x9" rep SRT wheels as the stock caliper only moves outward 1.25" but stays in the same plane.

This should be able to be done for under $500 and you don't even have to break the brake lines or rebleed the brakes.

Rears might be next after the adapter bracket gets made.
They will be a bit tougher as the WK1nonSRT 12.6" rear rotors are solid and the '14 WK2SRT8 14" and 15" rear rotors are vented and thicker.
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