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sdoolin |
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#1
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Member ![]() ![]() Group: Members Posts: 414 Joined: 1-May 14 From: LouKY Member No.: 17,299 Region Association: None ![]() |
Yep, I am building a 2056. Have ordered very nearly a complete 2056 engine kit from Type IV Store (LN Engineering). Some questions (I have searched and read MANY threads)...
I have a "spare" 1976 VW Bus short block (no cyl. heads). Assume this will work for a starting point? Issues with oil dipstick? The bus was an automatic so I assume once I remove the "flex plate" that the flywheel from by 914 engine (in car) will bolt up to the crank without issues? Any issues with engine carrier? The bus used a "moustache bar" for mounting to the frame and I am hoping that the cases from the bus/914 are the same for engine mounting? Will re-use existing Crank/rods New crank/rod bearings Will re-use existing cylinders (overbored) KB 96 mm flat topped pistons with Hastings rings Webcam cam (9130 kit from Type IV Store) Type IV Store pushrods, pushrod ends, parkerized lifters, rocker shafts Type IV Store cam bearings Re-use rockers from bus engine? Not sure about this... HAM (Len Hoffman) RS+ spec cylinder heads New Oil pump from Type IV Store New clutch & pressure plate. Re-use flywheel from 914 engine (in the car) Dellorto Dual 40mm carbs, CB Perf manifolds & linkage SSI heat exchangers & Bursch exhaust New fuel pump - will run return lines (have CFR SS Lines in car now and will re-use) Not sure what dizzy to run? I believe I need to check/verify deck height and valve clearance (I know how, just not positive this is required for a 2056 build). I have read a few threads about "setting" compression ration, but do not understand it yet? Anyone have a compression ratio for dummies guide? Anything else I'm missing? Progress so far... ![]() |
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sdoolin |
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#2
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Member ![]() ![]() Group: Members Posts: 414 Joined: 1-May 14 From: LouKY Member No.: 17,299 Region Association: None ![]() |
Having measured deck-height over the weekend I (naturally) have questions. I used the tool pictured previously with the calibrated screw. The directions indicate 1 full turn = 1mm (which I measured and verified).
On cyls 1 & 2 I get a deck height measurement of 1mm using the calibrated screw, and some stacked up feeler gauges yield the same measurement. Did not measure the other side yet. I can tell that actual deck height is just a bit less since that calibrated screw (and feeler gauges) rock the piston ever so slightly. But - I am comfortable (for now) with a repeatable measurement of 1.0 mm (.039). Plugging bore (96mm), stroke (71mm), deck height (.039) and chamber volume (55.2) into the CB Perf. engine calculator it yields a CR of 9.3 - 1. Is that too much? When I first began this project a couple of months ago Jake posted a quick reply that I'm using pretty much all the right bits and pieces and I should se the CR at 9.0 - 1. I tend to believe that guy. Without starting a flame war (if you are just going to bash JR, or this build don't bother posting) - how do we feel about a CR just a tad higher than 9.0 - 1? I'd love to bolt up the short block without any shims under the jugs and leave this CR alone, but am interested in experienced opinions from those who have done this (or a similar) build. All meaningful replies much appreciated. |
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Lo-Fi Version | Time is now: 12th March 2025 - 08:16 PM |
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