BRAD D

this is where I got the 62 fuel value from, but I can't copy the chart from SDS If you know your injector flow rate then the RPM FUEL CHART will give the approximate RPM FUEL value to enter for your engine. You also need to know the engine displacement to use this chart. Injector flow rate is in cc's per minute. If your flow rate is in pounds per hour, multiply by 10 to convert to cc's per minute. For example a 30 lb/hr injector would convert to roughly 300cc/min. Take your engine displacement and divide by the number of cylinders to get your displacement per cylinder. Cross your injector flow rate with your displacement per cylinder to find your RPM FUEL value. Enter this value right from idle rpm to redline rpm as a starting point. This chart is applicable for gasoline. If you are using Methanol, double the fuel value in the box. The value from the RPM FUEL CHART will often be roughly 20% too high at low rpm's and roughly 20% too low at high rpm's, so it is best to monitor the air/fuel ratio with a mixture meter, then make fine adjustments to get the best mixture at all rpm's. If you don't know the flow rate of your injectors, you could assume a flow rate of around 200 to 250cc/min on normally aspirated engines. On turbo engines flow rates vary, and are usually between 300 to 400cc/min. If you estimate that the flow rate is too high, then the mixture will end up to be too lean, because the RPM FUEL value from the RPM FUEL CHART would be too low. A mixture meter will help when flow rate is unknown, and be careful not to run lean under high throttle and high RPM. If you find the engine stumbles at medium or full throttle, then this means that the RPM FUEL values are either too low(lean condition) or too high(over-rich), so just keep making adjustments to the RPM FUEL values until the engine will tolerate full throttle. RPM FUEL CHART APPROXIMATE RPM FUEL VALUES vs CYLINDER DISPLACEMENT AND INJECTOR FLOW RATE

I dont know, thew just say a RB26DETT swap but in what a 240sx? Do they know how to do in in a Z??? I think it would cost 2-4K more but who knows??

I have a question too, for the RPM fuel values why do people stay with the same number for a range of 1000 RPM or so? Why not go up nice a # or two each 250 RPM? like a slope not stairs? My injector value worked out to be 62, so you -20% at the lower RPM then +20% at the Higher RPM.

I'm just setting mine up too

get the NEW install manual from the SDS web page, it is a lot better than the old one.

Hey Hey, GrayZee Im in Winnipeg too 8)

a long time ago.... I took the diff out of a 85 200sx Turbo sand blasted and painted it up and tossed it in, not thinking about it being a 4.11. I just wanted to get the thing running ratio did not matter to me at the time. 8) Sorry this just came to me when I saw a for sale ad for one ...I wonder if it will be a good ratio for the RB??? this weekend I hope to get it running

Mike are you sure you want to section your struts? Having the car too low will not help you get out of the hole (60 foot).

Thanks guys if I need help getting some I will let you know.

Bleed it, could have air in the line or a bad master and or slave

yes I made made and installed my oilpan, Just one tip load up the bolt holes with silicone sp? I had a leak from two bolts but now it is O.K . I guess the oil can find its way past the 1/4" thick flange arount the bolts.

I would try another, It could be a flaw in the part Who knows It dose look smooth in one spot like it did not shear there any rust on it, from old damage in the crack?

OK, I might of ran my Z a wee bit rich with the old SDS and fouled up the plugs, went to the parts store to get some new NGK PFR6A-11's but they can not find any or any to cross over to?!?! So I cleaned them up a bit and got the RB running again but I would like some new plugs Any ideas?

look here http://www.hybridz.org/phpBB2/viewtopic.php?t=23179

I think the RB26 mounts that Rick sells will bolt up to any RB block, but I could be wrong.

Thanks for the info I hope I can do the same for the Tilton unit

I ordered a 7/8" tilton I hope it will work I just need around a 1/4" more travle on the slave Thanks

Stony, what is the fastest 60' time you have pulled? There are some guys pulling 1.8-1.9's on vary small tires. others pulling 9's in the 1/4 with stock stub axles?!? I wonder if some thing went wrong with your set up ie: the stubs got side loaded or ther were flawed to start with? I dont know, just some ideas Do you have another stub to throw in? by the way thanks for the tip.

cool it also looks like the hole floor pan was swaped too or just in the rear.

Thanks for the help, I think you are right about the 260/280's having bigger master cyl's Now I just have to tap in this new 7/8" unit. I wonder what fittings I will need and will I beable to use the stock line??

yes I adjusted the rod all the way out but still no, my slave has reads 3/4 on the side of it. Maybe I did not bleed it well enough? I orderd a Tilton 7/8" unit just in case. I think the pedal is going all the way to the floor

O.k I orderd a Tilton 7/8" master cyl that is what the T56 guys use. Is it just a bolt up?

That is too bad, I thought it would hold up Hey Stony what clutch master cyl are you using? Mine dose not fully push in my O.S twin plate, can not put it in gear when it is running.

Thanks, I will try that. I also think that there is a swap that the chevy guys do that might help.

My car is running, and the clutch is not fully engaging. I am using a RB25 clutch slave, and an OS twin plate clutch hooked up to th e stock clutch master cylinder. What master cylinder can i swap in to give my clutch slave more travel? My slave cylinder says 3/4 on the side of it...