I dont know anything about Honda engines, so I need a little help with something. A friend of mine bought a civic hatchback, and a jdm del sol b16a. He did the swap, and put DC header, Greddy exhaust, Aem short ram, ecu, lightweight flywheel, and an Exedy clutch. I saw him beat a low 13 second prelude in the 1/4, and that made me a little suspicous, so I went for ride in his car. We got on the freeway and all of his shifts were at around 10,500rpm's. The car pulled hard to about 10000 then it started to fall of faround 10500, but it was still pulling at 10500. At about 70 mph he downshifted and floored it and the front tires broke loose. So i looked his engine over really well. There is no nitrous and no forced induction of any kind. I noticed under hard acceleration there was some pinging, which may indicate higher compression. So my question is: Is it possible for a internally stock b16a with no valvetrain mods to rev that high? I dont believe it is. I would assume that the engine was built before he purchased it and he doesn't know what was done to it. He told me that I could tear it apart and check it out. What should I look for if I do take it apart. I dont want to strip the whole motor but at least look at the cylinder head and valvetrain.

 

hey man i got one two but its doesnt rev thats high i got 8500 but what kind of ecu would be my first question

 

your friend's b16 might not be stock (not stock internals and such), means he can rev higher without worries OR he's just revving it like crazy with a chipped ecu and not knowing it's destroying his motor.

 

Modified by CardDealer at 3:47 PM 11/17/2006

 

If it is stock and he is over revving his motor, it seems like it wouldn't keep making power all the way to 10500 rpm's. Also spinning his tires at 70 mph, and smoking a low 13 second prelude demonstrates he is putting out some serious power from that little motor. The prelude is the most built honda I have ever seen. With slicks it would be low 12 second car easy, and thats without the 125 shot of N20. And this "stock" b16a just pulls on him in every gear.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boost_guy &raquo;</TD></TR><TR><TD CLASS="quote">What should I look for if I do take it apart. I dont want to strip the whole motor but at least look at the cylinder head and valvetrain.</TD></TR></TABLE>
Take out the camshafts and have them measured at a machine shop.

To be making power at 10500 revs, those have to be some incredibly wild cams (with a built valvetrain to go along with them). The bottom end is more than likely built to withstand the high revs and to bump up the compression.