Mine is a carburated (GA16DS) b13, so no ECU to limit the rpms :thumbdwn: .... the engine has some mods, for example: lightweight flywheel, crankshaft, pulleys, performance cams, twin 40mm webers, among others.Mod_That_Sentra said:Do you have a modified ecu? The stock ecu has a rev limiter of 6900 rpm. When you buy a JWT ECU, they raise the rev limit to 7300 rpms. But if you are reving that high and breaking the connecting rods, then, well, you should be able to figure that one out. It also depends on what engine mods you have. But, do a forum search cause I know this has been discussed before.
Apparently you have a steep learning curve. Broken rods on 3 occasions shold more than tell you it is not safe! And hae you dynoed your car to see what kind of power you are making up there. I would imagine that the power is falling off up there so there is little to no dvantage to raising the red-line. As stated the stroke needs to match the intended RPM range. In this case the motor is better suited to turbocharging.Master_Sentra said:Thx for your comments Wes, they are really appreciated. I’m pretty sure that the GA16DE and the GA16DS have the same connecting rods so maybe that would be the safe limit. The thing is that I’m using stock valves and valve springs and they seem to work well for those revs. I haven’t had any valve problems yet.
Why have I let it rev that high on more than one occasion? Cause even at 8000 rpms (sometimes a little bit more), on 1st, 2nd and 3rd gear at the ¼ mile the car seems to respond well.
And I’m starting to suspect that those revs are not healthy for my engine , so I would like to know the reason why only 7300 rpms are safe, why not more??, can I use forged internals??…. or based or your experience what would you recommend?
How many times do we have to say the same thing? Turbo has already been mentioned twice. In the tech section we TRY to keep it BS free so recommending kitchen utensils and saying the same thing others said isn't necessary...jswatson said:Did you put a Honda engine in their or something? The GA16 does have a little torque. USE IT. Get a turbo kit if you want to maximize its potential. If you want super high revs go get a Spoon or a Wankel. :thumbdwn:
hahahahaha...... I would love to install a turbo but the problem is that it´s a carburated motor remember????, and if you know how to do it, please advice cause if it's possible (reliable) I'll be glad to do it.wes said:How many times do we have to say the same thing? Turbo has already been mentioned twice. In the tech section we TRY to keep it BS free so recommending kitchen utensils and saying the same thing others said isn't necessary...