Over heating?

Ultra Violet · #1 10-02-2006, 03:44 PM

Ok so i am talking to a friend of mine who used to own a 1992 N/A 300zx about if he knows anyone who has one up for sale. He says puzzled " why do you want one of them " i tell him its a beautiful car i would love to start on a tuner that will make eyes pop ! lol he says " the Vg30s are shit , with cooling . mine i had to run a bigger cooling kit and better fans when i got to about 450 hp ."

so are they really that bad with over heating ?

also from what i remeber when i was younger my mom had a 1990 N/A 300zx and the dealer told us to get rid of the thing before 90k . sure enough at around 80k miles it started knocking alot !

If anyone can through in some insite to this that would rock

1viadrft · #2 10-02-2006, 04:19 PM

Your friend had an NA Z32 making 450HP? That's a load of crap... he lied to you about his HP. ask him for a dyno sheet next time you see him. As far as over-heating??? Even highly modified-well maintained NA Z32's are still using the stock radiator or a slighly bigger Maxima radiator.

I have only had one time where my NA Z32 overheated (and I live in the desert) and that was because my heater hoses were busting and I was loosing coolant. Bigger radiators are not necessary on a VG30DE. Just plain ol' maintenance. Electric fans would be great to free up some power though.

Maintenance is the main key for the Z32 and all cars for that matter. My NA Z32 is running close to 125K miles and is still running strong.

DeleriousZ · #3 10-02-2006, 04:37 PM

i think your buddy needs a good kick in the balls for thinking that he's making 450hp on an n/a vg30...

Eclipsewhipping · #4 10-02-2006, 07:03 PM

The dealer just wanted to sell your mom another car. i know many Z's turbo and N/A that are running smoothley at well over100k

Ultra Violet · #5 10-03-2006, 07:15 AM

AHH i wouldn't think he is lieing because he just finished his 3 year projects on his Civic he drop a k20 bullet proof running 9.0.1 with a t70 turbo and he is hitting in the range of 750hp @ 20 PSI he isn't done dyno testing but i seen the sheets for that . needless to say he isn't talk talk talk . i have seen picture of it and all the work he does on his cars in the past. but another thing . does it make a differents if the injectors are top or side? what year did it change over?

k3smostwanted · #6 10-03-2006, 11:29 AM

overheating is not really an issue with the VG. they run fairly cool and have no trouble staying at a decent temperature as long as everything in the cooling system is working properly and you upgrade the radiator at the proper time in the path of modifying. do NOT put an electric fan on a TT until they have been proven to keep things cool. as of right now, nobody has designed an electric fan kit for the VG that is as effective or more effective than the stock clutch fan and shroud set-up.

on the other hand, heat is an issue...but not overheating, temperature in the engine bay get really hot due to the lack of room and lack of venting in the hood. this just amounts in the wiring harness not lasting decades and premature sensor failure.

Ultra Violet · #7 10-03-2006, 11:54 AM

Quote:

Originally Posted by k3smostwanted

overheating is not really an issue with the VG. they run fairly cool and have no trouble staying at a decent temperature as long as everything in the cooling system is working properly and you upgrade the radiator at the proper time in the path of modifying. do NOT put an electric fan on a TT until they have been proven to keep things cool. as of right now, nobody has designed an electric fan kit for the VG that is as effective or more effective than the stock clutch fan and shroud set-up.

on the other hand, heat is an issue...but not overheating, temperature in the engine bay get really hot due to the lack of room and lack of venting in the hood. this just amounts in the wiring harness not lasting decades and premature sensor failure.

Ok i can live with that then

doberman_52 · #8 10-03-2006, 01:49 PM

The only time that i have ever seen one come close to overheating is after a motor swap and we screwed up a brand new thermostat.otherwise when a friend screwed his up when runing like 20 -30 psi and fried the rings, now when he does 90 for a little bit his gets pretty warm and thats a 95 turbo

DeleriousZ · #9 10-03-2006, 01:56 PM

he's running on a fried engine? that's kind of silly...

k3smostwanted · #10 10-03-2006, 02:22 PM

Quote:

Originally Posted by DeleriousZ

he's running on a fried engine? that's kind of silly...

let me guess...that 20-30psi was on pump fuel and stock turbos too.

1viadrft · #11 10-03-2006, 03:12 PM

Quote:

Originally Posted by Ultra Violet

AHH i wouldn't think he is lieing because he just finished his 3 year projects on his Civic he drop a k20 bullet proof running 9.0.1 with a t70 turbo and he is hitting in the range of 750hp @ 20 PSI he isn't done dyno testing but i seen the sheets for that . needless to say he isn't talk talk talk . i have seen picture of it and all the work he does on his cars in the past. but another thing . does it make a differents if the injectors are top or side? what year did it change over?

I'm still calling BS...

What mods does he have?

Ultra Violet · #12 10-03-2006, 06:35 PM

I met the him/ chris about 3 years ago right after the got rid of it and it was a beautiful car he even did sund cmps with it and he ran high 10s with it also i seen the picture of that to. but doesn't matter ! main thing i would like to know what are the main problems to exspect from the Z32s so i can get right on them

doberman_52 · #13 10-03-2006, 11:43 PM

He is parting it out aoon but doesnt have a lot of money, i would guess that is why he runs it with fried rings, stupid, but works for him. I'm sure it was pump gas and most of his parts are stock so I would guess they were stock turbos, that is actually an 85 turbo not a 95, he is also now in college, another money issue.

DeleriousZ · #14 10-04-2006, 12:01 AM

Quote:

Originally Posted by doberman_52

He is parting it out aoon but doesnt have a lot of money, i would guess that is why he runs it with fried rings, stupid, but works for him. I'm sure it was pump gas and most of his parts are stock so I would guess they were stock turbos, that is actually an 85 turbo not a 95, he is also now in college, another money issue.

wow he must REALLY be poor if he can't fix up a z31 lol.... poor car doesn't deserve a fate like that

k3smostwanted · #15 10-04-2006, 01:45 AM

Quote:

Originally Posted by DeleriousZ

wow he must REALLY be poor if he can't fix up a z31 lol.... poor car doesn't deserve a fate like that

wow...20-30psi on a stock T25 Z31 turbo. i don't even think it will flow that much air but reguardless, talk about out of efficiency.

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