510six Posted August 9, 2008 Report Share Posted August 9, 2008 -------------------------------------------------------------------------------- Currently , the L28/30 stroker uses a dual fuel system with 35% of the total fuel being methanol provided via two 1600cc injectors on the intake tubing. The "main" fuel system is gasoline (crappy CA 91 oct) with six 72lb injectors , the car at 17 psi with the T67 makes 440rwh and about 440 fpt and delivers 24-25 mpg on the freeway. http://www.cardomain.com/ride/2071134 The new system will use either 370cc or 240cc injectors on the main gasoline fuel rail, and the fuel milage and idle will improve with the smaller injectors and 87 rather than 91 oct can be used. A second stainless steel fuel rail using six 160lb methanol compatable injectors will be used with two Bosch 044 pumps providing the fuel from a 3 gallon plastic fuel cell. The fuel will switch from gasoline to methanol under boost thanks to the secondary injector control from the AEM EMS which also provides sequetial injection to the main fuel rail. This should provide better power under boost with no intercooler being needed and being able to lean the mixture to 15-1 or so for highway travel and with the .50 overdrive from the six speed should give impressive mileage. 500 rear wheel horsepower with 20-22 psi with the T67 using 90% methanol under boost shouldn`t be a problem as over 440 rwh was possible with 35% methanol. At the drag strip a small shot of nitrous will be used to make 600 rwh or so. http://www.msdfuelinjection.com/efi_accessories.html Quote Link to comment
Icehouse Posted August 10, 2008 Report Share Posted August 10, 2008 What is your goal for the quarter mile? 10's is damn fast already, especially for a dime!! Quote Link to comment
510six Posted August 10, 2008 Author Report Share Posted August 10, 2008 I would be happy to run mid 10`s:D After talking with my engine builder/fuel injection guru. E85 is avalable less than 3 miles from the house and E85 is not as corrosive as methanol and will require a simpler (and cheaper) fuel system. The main reason methanol was used was it`s high octain value and high latent heat of evaporation , ethanol has a lower octain rating and a correspondingly lower ability to take heat out of the intake charge. However, as I am not using an intercooler( I should say I am using a chemical rather than a physical intercooler) E85 at 100% provides actually should cool better than the 35% methanol currently being used. E85 is also 105 octain which is actually better than the numbers with 35% methanol. Quote Link to comment
datzenmike Posted August 10, 2008 Report Share Posted August 10, 2008 Get an inter cooler.(as well) One time buy, no moving parts, nothing to top up, fully automatic operation, finds extra hp for free. Quote Link to comment
510six Posted August 10, 2008 Author Report Share Posted August 10, 2008 Get an inter cooler.(as well) One time buy, no moving parts, nothing to top up, fully automatic operation, finds extra hp for free. There is really no room for an intercooler, with the methanol temps below ambient are the norm. This is a datalog from the AEM it shows the air temps dropping below 50* on an 80* day @ 14.5 psi with a T67. Quote Link to comment
510six Posted October 8, 2008 Author Report Share Posted October 8, 2008 A pic of a 12 injector N42 intake, now it`s getting the stainless steel fuel rail fabricated and the fuel system plumbed . The new N42 cylinder head is being ported and flowed and the bottom end is at the machine shop, then it`s the small matter of tuning the car .:rolleyes: Quote Link to comment
b210in Posted October 8, 2008 Report Share Posted October 8, 2008 your car is really cool, who did the custom adapter to mate the t56? Quote Link to comment
heirfaus Posted October 8, 2008 Report Share Posted October 8, 2008 I am very curious, what's the ID of the intake runners on that manifold? Quote Link to comment
Bleach Posted October 8, 2008 Report Share Posted October 8, 2008 I am very curious, what's the ID of the intake runners on that manifold? Just the runners? The manifold itself is an N47. I can see the stamp on it in the picture. That is the kind of rare 1975 only Z manifold. (non-California) Quote Link to comment
heirfaus Posted October 8, 2008 Report Share Posted October 8, 2008 Just the runners? The manifold itself is an N47. I can see the stamp on it in the picture. That is the kind of rare 1975 only Z manifold. (non-California) :lol:, I was actually wondering about the Inside Diameter... Quote Link to comment
510six Posted October 9, 2008 Author Report Share Posted October 9, 2008 The inside diameter of the rails has been ported to 34mm. The T56 adaptor was made by a friend of mine , if your thinking about putting a T56 behind an L motor the Z32 5 speed is a cheaper and easier option. Quote Link to comment
510six Posted January 24, 2009 Author Report Share Posted January 24, 2009 I just got the manifold back from the welder/ machinist the "gasoline" fuel rail is mounted . It was mounted in such a way as to clear the "E85" stainless fuel rail, which has to be mounted to clear the port nitrous system. The fuel/ nitrous system plumbing is going to be a bit involved to say the least. Here are the flow numbers from the port/chamber work on the N42 head. Quote Link to comment
510six Posted March 28, 2009 Author Report Share Posted March 28, 2009 This is the 12 injector manifold mounted in the car. Quote Link to comment
thisismatt Posted March 28, 2009 Report Share Posted March 28, 2009 That's nice work - it looks factory Quote Link to comment
808DA6 Posted March 28, 2009 Report Share Posted March 28, 2009 MEAN!!!!! Frikken MEAN!!!!! Never seen anything like this...at least not in the circles that I cruise. What engine management is going to control the beast? (forgive me if its listed above.) -Brian Quote Link to comment
510six Posted March 29, 2009 Author Report Share Posted March 29, 2009 MEAN!!!!! Frikken MEAN!!!!! Never seen anything like this...at least not in the circles that I cruise. What engine management is going to control the beast? (forgive me if its listed above.) -Brian The engine managment is AEM, a 1040 computer with a custom wiring harness. AEM has the capability for controll of staged injectors. http://forum.aempower.com/forum/index.php Quote Link to comment
hacked521 Posted March 31, 2009 Report Share Posted March 31, 2009 can you say holy s#!+ !!! thats awesome man, making that much horsepower and still get good mileage. My dad and I were planning on running a somewhat similar setup but on a new generation chevy small block in our chevy II. how hard is it to do the programming on this type of deal? Quote Link to comment
Skib Posted March 31, 2009 Report Share Posted March 31, 2009 that 510 is delightfully evil :D Quote Link to comment
510six Posted March 31, 2009 Author Report Share Posted March 31, 2009 can you say holy s#!+ !!! thats awesome man, making that much horsepower and still get good mileage. My dad and I were planning on running a somewhat similar setup but on a new generation chevy small block in our chevy II. how hard is it to do the programming on this type of deal? The programing and the wiring are quite involved , the AEM "tune" is being done by a good friend of mine. The final tune will be done on the dyno after quite a bit of street tuning .To do a dual fuel system gets expensive with seperate fuel lines pumps, regulator and fuel cell. Quote Link to comment
510six Posted April 25, 2009 Author Report Share Posted April 25, 2009 The new motor was started a couple of days ago and will be broken in on a 1-2 psi tune with the AEM , after the motor is broken in the AEM injector driver will be wired into the ECM and the E85 fuel system will be street tuned before finishing up on the dyno. Then it's the PITA of plumbing the nitrous around the E85 fuel rail and street tuning it. Quote Link to comment
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