I hope you guys found this as interesting as I did. Xcessive Nissan 240 KA24DE Cast Intake Manifold This manifold is MINT, and like new condition. for every 1000 rpm you want to move the peak torque above 6000.ġ3 + 2.6 = 15.6 in is our Ideal Intake LegnthĪnd that's pretty much all that I got through, I know that cams and overlap and what not still play a roll in this but these are just general measurements which are fine by me. for every 1000 rpm that you want to move the peak torque below 6000. High flow design incorporated to get as much air into each. Home Store About us Video The Black Mamba. Our race inlet manifold is made of 6061 aluminum with billet flanges, and fully TIG welded. Your TB diameter (overbored or not) dictates your intake diameter.Īdd the 25% (0.6) to the original diameter(2.4)Ī suggested starting point for the length of a tube with peak torque at 6000 rpm is 13 in. The Black Mamba Rotary Bug is a unique combination that has been constantly evolving over the years. The ideal diameter for an intake is when the intake has 25% more cross-sectional area than the TB's bore cross-sectional area. If it isn't or there is a MAP drop at WOT, then your TB is still too small. The MAP should be equal to, or close to, atmospheric pressure. The best way to find out if your TB is too small for your IM plenum is to determine what the intake manifold absolute pressure (MAP) sensor is reading (in the plenum) when you are at full throttle ( or wide open throttle (WOT) ) while the car is accelerating using a datalogger. The plenum volume is critical on N/A engines, and a basic rule of thumb is: The smaller the plenum, the lower the rpm range, and bigger means higher rpm. So if we want peak torque at 4500 rpm at 65% VE for an KA, VE = 0.65 V is the velocity of the air flow in the IM plenum for resonance (usually estimated at 180 ft/sec max.) You can calculate the ideal runner diameter by the equation: 5YRS 4. order) CN KingTec Racing (Wuxi) Co., Ltd. So, for instance, if peak torque should occur at 4,500 rpm the total runner length should be 178mm + (5.5 x 43mm) = 415mm. Turbo Parts Stainless Steel Headers Exhaust Manifold for Nissan 240SX KA24DE Engine Turbo T25 T28 59.00-99.00 / piece 30.0 pieces (Min. Will Directly Fit Stock OEM Throttle Body. Intake Manifold for Nissan 240SX 91-98 S13 S14 KA24DE (Dual Cam Motor) Hardware Included. Our KA24DE manifold is made with our own designed runners for better flow and fit. Nissan S13 S14 KA24DE 1989-98 Cast Aluminum Intake Manifold. You add 43mm to the runner length for every 1000 rpm that you want the peak torque to occur before the 10,000 rpm. Xcessive Nissan 240SX, KA24DE Intake Manifold. The general rule is that you should begin with a runner length of 178mm for a 10,000 rpm peak torque location, from the intake opening to the plenum chamber. I came across some very interesting information that I thought I'd share. Now in when I was looking around from stuff on how to determine Intake Manifold sizing and what not. So I figured I'd put them all in one thread to reduce the amount of, "KA24DE Aftermarket Intake Manifold," Threads. In the process I did a search on here and have noticed that there are quite a number of threads asking about aftermarket manifolds made for the KA24DE. I just recently(last night), became interested in the designing of intake manifolds.
0 Comments
Leave a Reply. |