Guest gprix1 Posted November 11, 2003 Share Posted November 11, 2003 Hey guys, I've got a '72 Z that I bought a couple of weeks ago with a turbo and Z280 HO motor. As I bought it, the car was pretty fast but I wanted to add some more performance. I was recommended to port and polish the intake and exhaust. We found out they used abrasive material to do it like gritty sand. So I got with my friend that tunes Hondas and we decided to try it ourselves. We got a bag of sandblasting sand and hooked up into the intake and started the car. We had to hold the gas so it would run. He wanted to let the engine suck in the sand through the intake so it would port it out and then push it out the ehxaust so it would port the exhaust manifold. I was worried that it might cause problems but he figured it'd be OK as long as we didn't make boost and it get sucked in the turbo. After running the car and letting it suck in sand we got about half way through a 25 lb bag. The engine was bucking and kicking and sounding really weird. We stopped and hooked the car back up normal and took off the sand supply. We tried to start it again and it was really hard. Once started it couldn't idle and kept making weird noises. We took it out and drove it and it started to make scraping and knocking noises. Help! I need to get this going as it's my only transportation and I don't have a way to get to work. Can anyone tell me what to do! My buddy only does Hondas so he doesn't know much about Nissan cars. Quote Link to comment Share on other sites More sharing options...
Guest ON3GO Posted November 11, 2003 Share Posted November 11, 2003 umm.... your not.. umm you shouldnt do that... what did you think sand would would do to your pistons, rods, cylinder walls, valves, seals, rings, and everything else. mike Quote Link to comment Share on other sites More sharing options...
Guest gprix1 Posted November 11, 2003 Share Posted November 11, 2003 ON3GO, I just got off the phone with my friend after your post and he said that their were rings or ring-valves or something like that kept that seperated from those things you mentioned and that would definately NOT be the problem. He's done a lot of mod's on cars so I pretty much trust him on this. Quote Link to comment Share on other sites More sharing options...
Guest ON3GO Posted November 11, 2003 Share Posted November 11, 2003 well the rings kinda do but not sand and etc. if its running evreyrthing is moving... i dunno man.. i would open the motor up and hceck it all out. mike Quote Link to comment Share on other sites More sharing options...
yo2001 Posted November 11, 2003 Share Posted November 11, 2003 Old. Quote Link to comment Share on other sites More sharing options...
EvilRufusKay Posted November 11, 2003 Share Posted November 11, 2003 Duuuuuude................. When intakes or anything are "polished" they have been removed from the car and are CLEANED afterward. Your engine needs to be rebuilt.... do not listen to your friend anymore bad...bad...bad Quote Link to comment Share on other sites More sharing options...
Guest ON3GO Posted November 11, 2003 Share Posted November 11, 2003 sorry dude like i said.. you just cant do that... it doesnt work that way. mike Quote Link to comment Share on other sites More sharing options...
JMortensen Posted November 11, 2003 Share Posted November 11, 2003 Please tell me this is BS... please... Jon Quote Link to comment Share on other sites More sharing options...
inZane 240 Posted November 11, 2003 Share Posted November 11, 2003 It is Quote Link to comment Share on other sites More sharing options...
denny411 Posted November 11, 2003 Share Posted November 11, 2003 I`m not really in to flaming, but if this story IS true... the person that suggested to run sand through the intake should never be allowed to touch a car again.Much less work on one. Quote Link to comment Share on other sites More sharing options...
Guest Smooth Operator Posted November 11, 2003 Share Posted November 11, 2003 Quote Link to comment Share on other sites More sharing options...
David K Posted November 11, 2003 Share Posted November 11, 2003 Geezus you guys just got played like a bunch of fools. This was on the Subaru forums more than a year ago! gprix1 just copy and pasted, waste of bandwidth. Quote Link to comment Share on other sites More sharing options...
Guest Nic-Rebel450CA Posted November 11, 2003 Share Posted November 11, 2003 Of course that is BS, think about it. 2.8 liters is just a tad bit larger than a 2 liter bottle of Soda. Once you got that much sand in the cylinders would all be completely full and the pistons wouldnt have anywhere to go. Not to mention the fact that the pistons are never all the way down together so you probably wouldnt even get half that amount in before a couple of the cylinders were filled. I think a moderator should talk to this fellow and remind him that this site is for serious discussions and troubleshooting. If you want to tell jokes, at least put it in the non-tech forum. Quote Link to comment Share on other sites More sharing options...
Tim240z Posted November 11, 2003 Share Posted November 11, 2003 Topic moved. Quote Link to comment Share on other sites More sharing options...
Guest BigWhyteDude Posted November 11, 2003 Share Posted November 11, 2003 "umm.... your not.. umm you shouldnt do that... " haha that got me laughing Mike Quote Link to comment Share on other sites More sharing options...
Guest gprix1 Posted November 11, 2003 Share Posted November 11, 2003 Yes, this story is BS. I saw it on another forum and thought it was pretty funny. Yes, this is a SeRiOuS forum so I'll let ya'll know right now that YES, I was pullin' your leg and sorry for wasting your precious bandwidth with a non-serious post on a technical forum. Ya gotta admit though, it's not too far from what's out there. For example, I recently saw at the dragstrip a honda civic with a HUGE FMIC and a 20G turbo. I was quite impressed with the setup and it was all very shiny. I asked the owner of the car, "what are you using for fuel management?" and he just gave me a confused look. I changed the question, "Have you upgraded the fuel injectors?" The answer "No, that is stock". I walked away trying to visualize the extreme detonation condition being created by the over-taxed 250cc injectors. Quote Link to comment Share on other sites More sharing options...
Mike kZ Posted November 11, 2003 Share Posted November 11, 2003 Yes' date=' this story is BS. I saw it on another forum and thought it was pretty funny. Yes, this is a [b']SeRiOuS[/b] forum so I'll let ya'll know right now that YES, I was pullin' your leg and sorry for wasting your precious bandwidth with a non-serious post on a technical forum. Ya gotta admit though, it's not too far from what's out there. For example, I recently saw at the dragstrip a honda civic with a HUGE FMIC and a 20G turbo. I was quite impressed with the setup and it was all very shiny. I asked the owner of the car, "what are you using for fuel management?" and he just gave me a confused look. I changed the question, "Have you upgraded the fuel injectors?" The answer "No, that is stock". I walked away trying to visualize the extreme detonation condition being created by the over-taxed 250cc injectors. It's alright to post this kind of thing, but post it in it's PROPER FORUM! DO NOT post a joke in a tech forum! Quote Link to comment Share on other sites More sharing options...
Guest Z-rific Posted November 11, 2003 Share Posted November 11, 2003 A Z280 HO engine? Whatever. Anyway, I find this to be annoying as hell. It's not funny. It's very immature. It has no place at HybridZ. If this was a funny post at another forum, then post it as such. Don't post it as if it were your own question, then try to keep it going by responding to Mike's post. Thanks, gprix, for trying to make this forum more like the Honda forums. Quote Link to comment Share on other sites More sharing options...
auxilary Posted November 11, 2003 Share Posted November 11, 2003 hehe rick, read this from the actual post about a year ago. there was also a dufus who put bbs into the intake Quote Link to comment Share on other sites More sharing options...
Datsun660z Posted November 12, 2003 Share Posted November 12, 2003 You Know What This Forum is just getting way too SeRiOuS For ME I don't have fun reading this forum anymore, what a shame. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.