Riceburner Posted January 18, 2013 Posted January 18, 2013 Whoa! What's this beast going into Pete? What's the head and induction going to be? Quote
peter mc Posted January 18, 2013 Author Posted January 18, 2013 Gareth it has a p90 with all the gear and latest water mods and port work and has the big port manifold from japan and new big OER carbs , has SW race pipes with our mods to the sec pipes 3 in exh ,,, whats it all for , to be dam fast at targa Quote
zed74 Posted January 19, 2013 Posted January 19, 2013 Gareth it has a p90 with all the gear and latest water mods and port work and has the big port manifold from japan and new big OER carbs , has SW race pipes with our mods to the sec pipes 3 in exh ,,, whats it all for , to be dam fast at targa Will he need a bigger tank Peter? Be good to see him take some time back off that blue Ford perena supercar! Quote
luvemfast Posted January 19, 2013 Posted January 19, 2013 Oh good job! That's where it's heading. Datsun for the win Quote
d3c0y Posted January 22, 2013 Posted January 22, 2013 Did you go 48 OERs for this one? Everyone's got an L34 now and mine isnt even running haha. Quote
peter mc Posted January 22, 2013 Author Posted January 22, 2013 HAHAH get it finished its been in the engine bay for month's yes its got new OER 47mm carbs , i really want it to pull from idle Quote
d3c0y Posted January 22, 2013 Posted January 22, 2013 i haven't been home for the last two weekends and now i will have to take the engine out myself this weekend without scratching the rockercover! nervy stuff. Be interesting to see the difference from the 47s to the Weber 50s Quote
NZeder Posted January 22, 2013 Posted January 22, 2013 We flow benched oer 47 and mikuni 44 there was nothing in it....but that is a flow bench. The oer 47 are a straight bore body the mikuni 44 are not. Now if the Webber are doc SP type ie race carb with no idle chocks then they will be tappered bore so will out flow the oer 47. But it does depend on other factors if the engine will gain from the differences in flow from each carb. Quote
peter mc Posted January 23, 2013 Author Posted January 23, 2013 HI NZeder i have done the test on them all and know the 44s stop making power well before the 47 in the test day we did the 44 made 298 and the 47 made 349 same engine no other change the 50mm carbs made the same but did not pull off the bottom as well , best over all torque was from the 47mm carbs with 42 mm chokes best power was with 46 chokes . this test was with a 89 88.5 motor Quote
NZeder Posted January 23, 2013 Posted January 23, 2013 See goes to show that the flow bench will show x flow at y but like you have shown on your test day that does not equate to the same on an engine under load. One day we will get some oer 47 again..I put oer 47 on the old red 240z replacing some odd ball Weber 48 (non sp type but more like a standard 45 Weber but 48. I think of some Alfa or something) and that made a big difference to that car. I had no dyno back to back just seat of the pants feel and the dyno when setting up the 47's Quote
d3c0y Posted January 23, 2013 Posted January 23, 2013 At least 50 DCO webers are cheap and you've got 50s i guess haha Quote
peter mc Posted January 23, 2013 Author Posted January 23, 2013 jake i will be fitting them on my 3.4 TC as well for that reasoin, and i dont feel that i will be driving it around under 4000 rpm , much so the 50mm carbs will sute me just fine , but for the targa cars you need it to drive strong right off the bottom, and the 47s win that fight Quote
d3c0y Posted January 23, 2013 Posted January 23, 2013 So you are saying when I'm draging people off the lights, I just have to drop the clutch over 4000rpm right? Quote
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