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This A.U engine has 250 rwkw and runs all day...It can run much more than than that ...Very quick throttle responce due to 9.2 compression.. Expect 300 rwkw when trans is uo to the task but as it is its very quick..
Then there's this car making 360 rwkw without N20 [its hasn't been on dyno with n20] 
I stress this is a std motor with cutom turbo cam and double valve springs, AU head bolts. The head has NOT came off this engine... 
_________________ As in ZOOM 126 edition |
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| ebs_4l |
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what brand double valve springs are they?? when i was looking into some crow doubles i found the i.d to be too small which meant machining of the valve spring boss around the guide...
_________________ EB 4L, 8.4:1, R154, GT4202r, 4in exhaust, Greenslade Engineering exhaust manifold, plenum chamber, 90mm throttle, Garrett W2A cooler, Surecam custom, autronic SM4, Bosch 120lb, Crane HI-6, LX-92, LM-1, Turbosmart Reg, 2x bosch 044, turbosmart 48 gate. 470kw+ @ 18PSI |
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| IMPRTETA |
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i used crow doubles fitted with no probs at all.
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| fritzz |
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{USERNAME} wrote: off the top of my head, im 95% sure tehres a standard engine holding well over 450rwhp over here... well last i heard it was stock. EB at that.
yeh its a 200,000+km engine with a n/a dev 5 head and cam making 460rwhp on 12psi
_________________ # 1997 EL Falcon GLI - 600+rwkw |
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| ebs_4l |
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what was the part number imprteta?? the ones i was looking at had an i.d of .906" from memory.. im extremely happy with the singles that i selected, they have a good seat pressure and a better spring rate than the doubles from memory...
you arent confusing doubles with the damper coils are you????
_________________ EB 4L, 8.4:1, R154, GT4202r, 4in exhaust, Greenslade Engineering exhaust manifold, plenum chamber, 90mm throttle, Garrett W2A cooler, Surecam custom, autronic SM4, Bosch 120lb, Crane HI-6, LX-92, LM-1, Turbosmart Reg, 2x bosch 044, turbosmart 48 gate. 470kw+ @ 18PSI |
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| fritzz |
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http://www.crowcams.com.au/templates/Ca ... -OHC.shtml
Part no. 7333-12
_________________ # 1997 EL Falcon GLI - 600+rwkw |
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| willygrice |
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{USERNAME} wrote: This A.U engine has 250 rwkw and runs all day...It can run much more than than that ...Very quick throttle responce due to 9.2 compression.. Expect 300 rwkw when trans is uo to the task but as it is its very quick..
Then there's this car making 360 rwkw without N20 [its hasn't been on dyno with n20] I stress this is a std motor with cutom turbo cam and double valve springs, AU head bolts. The head has NOT came off this engine... Cool an EB/ED with a front bar to suit the intercooler
_________________ I dont care how fast your car is, mine goes faster through the bush. |
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| IMPRTETA |
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yeh ill see if i can dig up the part number. could of been the coil dampeners i was thinkin of.....
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| EBXR8380 |
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The a2a intercooler was replaced with water 2 air as in last shot...
_________________ As in ZOOM 126 edition |
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| ebs_4l |
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fritzz, i am aware crow list double springs for them, but did you lookup the spring specs, the inner spring i.d is .810" which is smaller than the lower spring boss on the falcon head, which measures in at .945" therefore, the inner spring will be resting on top of the 2-3mm high alloy spring locating boss, rather than sitting on the hardened steel washer that the spring is meant to sit on. what this means is that to fit these springs, you will need to have that boss machined down, and possibly a hardened washer with a smaller i.d also.
dont beleive everything you read (unless i wrote it) LOL
_________________ EB 4L, 8.4:1, R154, GT4202r, 4in exhaust, Greenslade Engineering exhaust manifold, plenum chamber, 90mm throttle, Garrett W2A cooler, Surecam custom, autronic SM4, Bosch 120lb, Crane HI-6, LX-92, LM-1, Turbosmart Reg, 2x bosch 044, turbosmart 48 gate. 470kw+ @ 18PSI |
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| fritzz |
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lol yeh i wouldnt have a clue about them, i was just seeing if u new about them
_________________ # 1997 EL Falcon GLI - 600+rwkw |
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| EBXR8380 |
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The springs fitted to Michael's engine are doubles .. XR6T with spring on in side...
Doubles generally have better harmonic stability over whole range...It's not so much rpm where springs are rquired stronger. Ithe boost aginst spring.. Being PSI there would be 3 or 4 square inches per valve at 15 PSI boost that add up... Against valve spring....
_________________ As in ZOOM 126 edition |
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| ebs_4l |
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on the 6 there is about 2.7sqin of inlet valve area, which means at 15psi boost, you are putting 40lb extra load against the spring
_________________ EB 4L, 8.4:1, R154, GT4202r, 4in exhaust, Greenslade Engineering exhaust manifold, plenum chamber, 90mm throttle, Garrett W2A cooler, Surecam custom, autronic SM4, Bosch 120lb, Crane HI-6, LX-92, LM-1, Turbosmart Reg, 2x bosch 044, turbosmart 48 gate. 470kw+ @ 18PSI |
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| IMPRTETA |
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just pulled my rocker cover off to check my springs there doubles, part no.7333-12. the factory under spring washer actually has a step that the inner spring sits on, so no machining required. i also used there retainers and collets. hope it helps.
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