427 LS7/T56 in Z4
- Thread starter v8z4
- Start date
Update:
Finishing up the hydraulic rack/hydroboost booster/wilwood clutch master install.
The parts list includes:
- the hydraulic rack from a Z4M roadster (never could find a Z4M coupe rack)
- the lf30 PS pump/PS tank from a 330i
- hydroboost (hydraulic brake booster) from a 2004 Suburban
- brake master cylinder from a 2004 C5 Corvette
- Mason steel clutch pedal
- Wilwood short stroke 7/8" bore clutch master
This is about the last major thing that needs to happen before the engine swap (obviously will have to do fuel lines/wiring/etc when the motor goes in). Projecting to swap around Christmas
Finishing up the hydraulic rack/hydroboost booster/wilwood clutch master install.
The parts list includes:
- the hydraulic rack from a Z4M roadster (never could find a Z4M coupe rack)
- the lf30 PS pump/PS tank from a 330i
- hydroboost (hydraulic brake booster) from a 2004 Suburban
- brake master cylinder from a 2004 C5 Corvette
- Mason steel clutch pedal
- Wilwood short stroke 7/8" bore clutch master
This is about the last major thing that needs to happen before the engine swap (obviously will have to do fuel lines/wiring/etc when the motor goes in). Projecting to swap around Christmas
1066 Country
... and I thought it couldn't get any better.
I can guarantee you the stock 300mm front discs won't be up to the job as I found their overheating limits quite quickly just with a stock 230 brake motor & ended up changing for the E46 325mm carriers.
With what you'll have under the hood, minimum will likely be //M brakes & while you're there likely to be worth undertaking a full suspension swap given the extra weight, especially as you'd have to change the hubs to fit the floating //M brakes
I can guarantee you the stock 300mm front discs won't be up to the job as I found their overheating limits quite quickly just with a stock 230 brake motor & ended up changing for the E46 325mm carriers.
With what you'll have under the hood, minimum will likely be //M brakes & while you're there likely to be worth undertaking a full suspension swap given the extra weight, especially as you'd have to change the hubs to fit the floating //M brakes
I already have the M3 rear rotors (and calipers) on the car from when I did the M3 rearend swap.
The plan is to wait it out and find a good used set of 340mm CSL rotors for the front. Then I'll go get the Porsche 996 calipers front and rear.
I'm in the middle of (almost done if I can find some time between work, school, and family) converting to a GM Hydroboost (hydraulic booster from a 3/4 Tahoe) and C5 Vette master cylinder.
The plan is to wait it out and find a good used set of 340mm CSL rotors for the front. Then I'll go get the Porsche 996 calipers front and rear.
I'm in the middle of (almost done if I can find some time between work, school, and family) converting to a GM Hydroboost (hydraulic booster from a 3/4 Tahoe) and C5 Vette master cylinder.
pokeybritches
Member
v8z4 said:
Will the 996 calipers not fit the Z4M rotors? They are 345 mm.
http://www.turnermotorsport.com/p-1518-cross-drilled-floating-brake-rotors-front-e46-m3-cslzcp.aspx
It was my understanding that the Z4M has the M3 CSL calipers and rotors.
pokeybritches said:
Yes they will fit. The CSL rotors are 345mm x 28mm (same as the Z4M), I just mistyped them. That is the rotor that I plan to use and are an eventual upgrade, however for now I'd rather spend $2000 (by the time I buy 996 calipers, CSL rotors, and caliper adapter brackets) on the engine swap as the car does "stop".
Well, things are advancing fast now. I found a buyer for the 2.5i/5speed that is in the car, so I'll be pulling it this weekend ('do the money dance.....' :yeah: ).
Pistons are being sent off today to get coated and should be back mid next week. I'll then pack the heads, pistons, main and head studs into a box to ship to CA for work. The heads are getting a stg2 CNC port/polish, new valves, springs, etc. The pistons and studs go to the Darton so they can bore/hone the block after they dry sleeve it. HOPE to have the heads and block in hand by end of September. Then its balance the rotating assembly and assemble. Actually looks like I might be ahead of the "Christmas swap schedule".
In the mean time, I'll use the 5.3 block/heads to mock up motor/trans mounts, run wires, make lines, etc. The goal is to have 100% of the "car work" finished before the 427 gets finished. That way I just bolt parts on, stick the engine in, and go play.
Pistons are being sent off today to get coated and should be back mid next week. I'll then pack the heads, pistons, main and head studs into a box to ship to CA for work. The heads are getting a stg2 CNC port/polish, new valves, springs, etc. The pistons and studs go to the Darton so they can bore/hone the block after they dry sleeve it. HOPE to have the heads and block in hand by end of September. Then its balance the rotating assembly and assemble. Actually looks like I might be ahead of the "Christmas swap schedule".
In the mean time, I'll use the 5.3 block/heads to mock up motor/trans mounts, run wires, make lines, etc. The goal is to have 100% of the "car work" finished before the 427 gets finished. That way I just bolt parts on, stick the engine in, and go play.
pokeybritches
Member
Awesome news!
One thing you may want to budget for is an OS Giken diff. Lots of torque can overwhelm the M3 diff and cause it to act like an open diff. Many of the high horsepower HPF M3's swap in the OS Giken.
[youtube]DtscBk9NfN8[/youtube]
One thing you may want to budget for is an OS Giken diff. Lots of torque can overwhelm the M3 diff and cause it to act like an open diff. Many of the high horsepower HPF M3's swap in the OS Giken.
[youtube]DtscBk9NfN8[/youtube]
pokeybritches
Member
Good stuff... really impressed with your build. It's probably the most long range and exotic build I've seen in a Z4.