z1 head on a z6 block.. all Z6 ex coupe components except head.. it falls on its face at 5200.. i got the vx ecu but im 2 hours from the car.. will this make a diff when i get home?? it just hits like a rev limit when Z6 vtec should kick in..

vx ecu = the fix or did i **** something up?? car runs smooth till 5000

travis

 

no one has ever seen this or tried it or anything?? is honda tech missing its tech??

 

That car would fall on its face anyway... LOL

That car came with like 90 Flywheel horsepower... I honestly dont know how to fix your problem... But your just better off with a stock Vx everything if you really think that car is gonna make any power... Especially with the STOCK Ecu... LOL

Good luck tho...

 

The VX doesnt have Vtec, it has Vtec-E. E for economy. Vtec doesnt hit like a regular vtec head would. It works by only oopening the the intake (correct me if I'm wrong) valve half way and once vtec hits, it opens as much as it can. Regular vtec works by opening the valve fully all the time and at the engaging point, the Vtec lobe on the cam pushes the valve even further, letting more air into the motor...

Its kinda similar, but not really. The VX has a gas saver vtec. It's not a good idea to use that head for anything more than commuting... It's not a race head...

 

ya i did some research.. it was runnin 11.3:1 compression.. grabbed a Y8 head and im good to go!! car runs mint

 

looks like you got your answer but just some info...

The z1 head is pretty different then other D series head, noticeably it has roller rockers, it also uses vtec-e which out of vtec uses only 12 valves and 1 intake valve slightly opening, when vtec comes in at about 2500rpms the 4th valve is open...pretty much to give you power to pass on the highway :-P If you were to use the vx ecu (PO7) you'd also need to connect the egr, egr control box and 5-wire O2 sensor or you'll get a CEL, the VX has an additional harness plug on the right shock town to incorporate these...which also means you'd have to do some repining at the ECU to get it to work properly...the VX and HX are great motors but they have there place and its not for performance you are probably looking for, they also have smaller ports then the other D series motors...great motors for fuel economy! I was able to get 40-50mpg easily with my VX and now my VX swapped Del Sol...

If you have no use for the VX z1 head I might take it off your hands, shoot me a pm if you want to work out a deal,

HTH Matt