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:eek: Looks fantastic! Somewhere, some designers are genius guys. Not yet ready for the test bench. I have to solve my cylinder sleeve problem and then (more difficult) to find a dyno shop that accept engines above 300hp (don't smile Sandy I am in France :o )

Hi Simon Your fuel fitting looks very small in order to supply your fuel pump. It looks like a 4-AN that is used to connect a fuel return line coming from the fuel pressure regulator (when it is used). Common practice for AC Cobra is to use at least 8-AN braided hose from the tank to the fuel...

One of the best American car with a famous number ;) (the one that win at Reims in 1965 giving by this way the world GT class championship to Carroll Shelby)

Good idea Howard! In the same way, one of my friends had installed a radical system. In his engine, oil pressure is controlled by a pressure switch that is in serial connection with his ignition box. If the oil pressure goes down below 1psi (not sure about the value), the engine cut off...

Sandy, your engine looks very nice! I see that you have a special "Boss style" water pump and a serious oil pump support. I don't see your alternator but it is may be installed at the transmission side. Regarding your interesting oil diagram, I have few comments. Be sure that it's not a critic...

Hi Doug, Back to the dry sump design. I agree with the majority of previous answers, dry sump is only interesting for the track with racing tires that will allow strong lateral accelerations. Forget it for a street use even if from time to time you go to the track, it is not a cheap deal :o ...

Hello Jean Phi du Gard Thanks for your welcome and the quick forum members presentation ;) I have noted the great spirit (even if I don't understand everything :o ) of this nice forum. As you, I am studying mechanical problems plus American language :p: . I note also that you are lucky enough...

Sorry Doug to be out of subject in your topic but I will try tomorrow to make an appropriate answer to your question about the dry sump system that is also an interesting design ;)

You are right Russ, test bench is a pragmatic approach. However, in order to take full advantage of each different arrangements, we have to adapt an to find (by different tests) the best camshaft adjustment for each configuration. According to my small experience on 4 cylinder motorcycle...

When exhaust gas are going in the pipe, they are pushing in front but also they are pulling at the rear side (creation of vaccum area). This phenomena allows to open the inlet valve before the TDC despite the piston is going up to initiate the inlet gas movement. As better is the "extraction...

Sandy, when you try to empty quickly a bottle of water, you give a circular movement at the bottle that will create a mini wirlpool inside to accelerate the empty operation. Exhaust pipe circular arrangement follows this basic principle. Whatever your induction system (carbs or injection) this...

Mark, you have at least 2 qualities: courteous and indulgent. Thanks for your welcome :chug:

Hi Pat As you say, interesting subject! Thanks Russ for the right link where we can find some interesting point of view: It is a common agreement that exhaust pipes must be grouped by 180°. However, in order to have the best "pulse-extractor effect " as mentioned by JCoop, it is necessary to...

The paddock

Some very nice cars

Hi Dennis You can find a large lexan (or polycarbonate) sheet on e-Bay: eBay: POLYCARBONATE Full Sheet 3/16" x 48" x 96" Clr (item 7545630070 end time Nov-04-06 11:27:58 PST) Smaller sheets are also available. Lexan solution is a cheap and light way to replace a rear glass. I have do it on...

Hi Sandy As you say, a new RDI bloc requires some workshop operations. However, when I receive it, the deck elevation as well the camshaft bearings was at the finished values and cylinder sleeves was without any protusion. Only cylinder bores and crankshaft bearings was at semi-finished values...

Dear all members Bad new, I am a french guy without GT40 :o However, I have built a coupe Daytona replica with a 302 SBF and I love race engines. It means that I have a lot of similar point of view with GT40s forum's members. I find this forum by chance (thanks Doug) when I was looking for...

Hello CliffBeer As you say, a flat crank can be working as well on a Ford or Ferrari engine. (by this way, I learn that the Lancia Thema was equipped with a different crankshaft than the 328 Ferrari). Independently of the crankshaft balancing, the main difference is coming from ignition order...

Hello Doug First of them, thank you for your warm welcome in the GT40s forum;) Regarding the Australian cylinder heads Cleveland type, they have a great reputation in the racer's world and they are very close with the best Brodix or Yates. I believe that the main difference is only made by the...