Chris Wilson Posted October 7, 2008 Share Posted October 7, 2008 I suspect work will be fairly spasmodic over this winter, with the large credit debts people have run up, and not having taken a proper holiday for over 18 years I have decided to cut back a bit and after finishing the Skyline engine that's taken up a bench and an engine stand for nearly 2 years start a new project. Once the RB26 is done (before Christmas, hopefully), I am thinking of putting a turbo set up on the 4-AGE Toyota engined Zeus. The engine needs a refresh anyway, so it's got to come out.The car is booked in to go down to Primary Designs (http://www.primarydesigns.co.uk) in the next 3 weeks to have an Inconel turbo manifold made, and the wastegate plumbing done. Turbo Dynamics are making a custom divided housing TO4 footprint turbo, and I have a new Tial 44mm wastegate. I will share a Motec M800 with the Skyline project. Currently the 4-AGE is in Formula Atlantic spec, at 1600 cc capacity, and about 200 BHP Compression is about 13 to 1. I'll drop that with some custom pistons, to about 8.75 to 1, but am undecided about the make. I'd ideally choose Omega, but their lead times are still slow and unreliable, although the product is world class. The twin 48 DCOE Webers will come off, and I need to assess whether multiple throttle bodies can be packaged as easily as a single body on the end of a custom plenum. What I don't want to do is hack the bodywork about too much. It already has twin water rads, a Laminova oil to water heat exchanger and an oil to air heat exchanger. I think the cooling is OTT for the UK, so I will have a 1/4 height water rad made for the left side, the remaining 3/4 area in the LH duct will house an air to air IC. I should be able to run the outlet of the IC across the top of the transaxle, above the dampers, to the plenum. I am aiming for about 380 BHP, maybe a bit more on race fuel, revving to about 10,500 RPM. Cams are currently about 304 degree duration with over 10 mm lift, a bit wild, but with careful turbo sizing and the trick bottom end allowing the engine to rev hard, should be usable as is. The bottom end (TRD Formula Atlantic lightweight crank and Carillo rods in the strong seven rib late block) should also be OK as is. It's already dry sumped, I am hoping the oil pump will have the excess capacity to run the turbo oil feed to a ball bearing unit OK. I intend to do the costings this week, but as I want a closed wheel race car with a lot more grunt than I have it's either mod this or sell it and buy something else, which would be very expensive, and I like the Zeus's . Quote Link to comment Share on other sites More sharing options...
mikeyb10supra Posted October 7, 2008 Share Posted October 7, 2008 Get some pics up when its underway Chris, sounds interesting Quote Link to comment Share on other sites More sharing options...
Wez Posted October 7, 2008 Share Posted October 7, 2008 Quote Link to comment Share on other sites More sharing options...
RobSheffield Posted October 7, 2008 Share Posted October 7, 2008 Get some pics up when its underway Chris, sounds interesting Quote Link to comment Share on other sites More sharing options...
SteveR Posted October 7, 2008 Share Posted October 7, 2008 Zeus power! I love seeing the one at Llandow Chris, I take it that is your 'slow' one and this one is already quicker, soon to be quicker still? Quote Link to comment Share on other sites More sharing options...
Thorin Posted October 8, 2008 Share Posted October 8, 2008 Sounds cool. You going to be forking out to put it on an engine dyno for mapping Chris? If so we need video of it revving to 10,500rpm. Quote Link to comment Share on other sites More sharing options...
Ryan.G Posted October 8, 2008 Share Posted October 8, 2008 Chris, if you want to stick a proper ecu on that and get it setup on one of the engine dynos at aerltd / life racing. Then give us a shout Ryan Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted October 8, 2008 Author Share Posted October 8, 2008 Thanks Ryan, but already having an M800 and the fact that the calculations on costing I did last night have surprised, (read shocked), me, I won't be buying another ecu for it Quote Link to comment Share on other sites More sharing options...
Pete Posted October 8, 2008 Share Posted October 8, 2008 Thanks Ryan, but already having an M800 and the fact that the calculations on costing I did last night have surprised, (read shocked), me, I won't be buying another ecu for it I know that feeling. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted October 8, 2008 Author Share Posted October 8, 2008 We all feel the pain, a change of hobby to fishing seems OK until you get into fishing....every vice has its price Quote Link to comment Share on other sites More sharing options...
Pete Posted October 9, 2008 Share Posted October 9, 2008 We all feel the pain, a change of hobby to fishing seems OK until you get into fishing....every vice has its price I've never thought of that, but it's quite true. To achieve the pinnacle of anything requires lots of cash....unless you you're a Buddhist Monk and your hobby is meditating. Quote Link to comment Share on other sites More sharing options...
Thorin Posted October 10, 2008 Share Posted October 10, 2008 I've never thought of that, but it's quite true. To achieve the pinnacle of anything requires lots of cash....unless you you're a Buddhist Monk and your hobby is meditating. Havard is far from a monk, but his hobby sounds reasonably cheap. Quote Link to comment Share on other sites More sharing options...
Ark Posted October 10, 2008 Share Posted October 10, 2008 I've never thought of that, but it's quite true. To achieve the pinnacle of anything requires lots of cash....unless you you're a Buddhist Monk and your hobby is meditating. All those robes and razor blades...I dunno, could be pricey... Quote Link to comment Share on other sites More sharing options...
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