3000 GT questions

I am curently debating on getting a 3000 GT, I looked at the different year models and I don't really see any major difference between the early and late models. other than the 20hp extra juice were there any significant changes to the proformance or the car and if so what year. And what is the max power I could get out of the stock internals?

Read the FAQ

i love mine. i have a 94 sl...its not hard to drive its the first car i really learned stick on so i beat up the clutch pretty nicely. its getting fixed now though it needs a new clutch and transmission pieces but once its fixed it will be good. its actually really good on gas, but i've heard that other people say its not good for gas mileage. other than the repairs im having done now i havent had a problem with it. and that was only bc it has a lot of miles and is 11 years old.

i love mine. i have a 94 sl...its not hard to drive its the first car i really learned stick on so i beat up the clutch pretty nicely. its getting fixed now though it needs a new clutch and transmission pieces but once its fixed it will be good. its actually really good on gas, but i've heard that other people say its not good for gas mileage. other than the repairs im having done now i havent had a problem with it. and that was only bc it has a lot of miles and is 11 years old.

i love mine. i have a 94 sl...its not hard to drive its the first car i really learned stick on so i beat up the clutch pretty nicely. its getting fixed now though it needs a new clutch and transmission pieces but once its fixed it will be good. its actually really good on gas, but i've heard that other people say its not good for gas mileage. other than the repairs im having done now i havent had a problem with it. and that was only bc it has a lot of miles and is 11 years old.

thers really no horsepower diff between years. the first gens can be upped to the other gens power by removing a small restrictor in a vac line running to the turbos. (free boost mod)

other than that, 93 and over has a few internal upgrades and in 94 i think they changed to she short block. the 99s have improved lash adjusters. Theres other little mechanical differences too, but nothing major. read the FAQ.

correct any wrong info

the base models got bumped down to 160HP after 1996, but pretty much you said it all

PS: 91-93 VR4s are 5-speed, 94+ is a 6

PS: 91-93 VR4s are 5-speed, 94+ is a 6
I know that they renforced the bottom end in 95 was the 6 speed stronger than the 5speed?

huh???? are you talkin about in 93 when they upgraded the pistons, and crank, etc...????

I've heard the 6 speeds are better, butr I really don't know how true that is...

also as years went up, the weight of the car drop little by little, like for example 91 sl 3524 lbs and 99 sl is 3263. not much but better then nothing...

also as years when up, the weight of the car drop little by little, like for example 91 sl 3524 lbs and 99 sl is 3263. not much but better then nothing...
you must be talking about the NA cars because the turbo AWD cars had a curb weight of 3700-3800lbs, or at leased that is what I have read.

yup yup, awd is around 3700-800, but what more crazy is the 4000lb spyder, but if you care for weight i pick a 96 stealth tt weighting about 3600lb :iceslolan

ok, as far as actual internals go, the 93+ all have 4 bolt main with forged rods and forged crankshaft, and 25-spline trannnies (although the 93 is a 5-speed and the 94+ are 6-speeds). The 91-92's have 2-bolt mains with forged rods and cast crankshaft, and an 18-spline 5-speed tranny. Some people claim that the 5-speed gearing is superior to the 6-speed gearing, unless your trapping over 120 mph in the 1/4 mile then its vice versa. And as said above, the extra 20 hp is from the restrictive nipple in the boost solenoid that is easily removable in the 1st gens. All the other differences are body and some accessory differences among the years This is all related to the TTs.

As far as N/A's go, all N/A's came with a 2-bolt main block. However, they all share the TT internals for corresponding years. In other words, the 91-92 cars have cast crankshaft and forged rods, and the 93+ cars have forged crankshaft and forged rods. All rods in all cars and models are the same. The trannies correspond to the years as well as far as 18 and 25 spline goes.

And for you newbies, forged are better internals than cast, and a higher spline is better on a tranny.

However, in 97, Mitsu decided to go with SOHC heads on the base models, which dropped the horsepower down to 161 if i remember correctly, which was stated above as well.

Oh, and the TT pistons are different from the N/A pistons as the TT's are 8:1 and the N/A's are 10:1 because the 8:1's are safer to run with the turbos.

I think that about covers all the major mechanical differences.

What is the maxamum power potential of the 3000GT vr4 with just bolt-ons, I am talking about the 94+ with the 4 bolt engines. How much boost can saftly get them to run?? I have seen stock a block 300zx run 1.3bar pushing out 630hp, and they are going to try 1.6 bar. I think the 3000GT can handle more since it has 8 to 1 CR vs the 8.5 to 1 of the 300zx. Has anyone seen a hot stock block buildup on a 3000GT?

I can't imagine that that figure woiuld be to hard to reach with just bolt on's Just really comes down as with anything to how deep your pockets are!!

What is the maxamum power potential of the 3000GT vr4 with just bolt-ons, I am talking about the 94+ with the 4 bolt engines. How much boost can saftly get them to run?? I have seen stock a block 300zx run 1.3bar pushing out 630hp, and they are going to try 1.6 bar. I think the 3000GT can handle more since it has 8 to 1 CR vs the 8.5 to 1 of the 300zx. Has anyone seen a hot stock block buildup on a 3000GT?

doesn't matter what year the vr-4 is, even the 91-the first half of 92 with the weaker engines are still rated easily to hold 600+ hp. As far as bolt ons, its all dependent on how much money you are willing to spend. The stock turbos are crappy compared to the 300ZX, in which if you want to make more than 425 bhp, then you will need to upgrade turbos and fuel. So once again, it all depends on what you consider "bolt ons"

doesn't matter what year the vr-4 is, even the 91-the first half of 92 with the weaker engines are still rated easily to hold 600+ hp. As far as bolt ons, its all dependent on how much money you are willing to spend. The stock turbos are crappy compared to the 300ZX, in which if you want to make more than 425 bhp, then you will need to upgrade turbos and fuel. So once again, it all depends on what you consider "bolt ons"

I am talking about the real deal here not just a K&N filter, and a shiny exaust. New fuel pump, injectors, intercooler, streetable torbos, exaust, intake, ECU, boost control, cooling, ignition, intake, hotter cam, turbo timer, water injection, underdrive pullys, and a small shot of wet NOS (35-50hp to make sure I can spool my turbos very quickly). I am looking to spend about 7-8k in upgrades. I know I can get 500-600hp on a 300zx with the same mods, but I think I can get more with the 3000GT because of its 8:1 CR and apperently very strong internals. I think the only reason the 300zx makes as much hp stock is because it seems to me that the 3000GT runs a much colder cam, and smaller turbos (I think) making peak torque at only 2500 RPM! What would the drivetrain need to be able to handle that kind of power?

Well I seriously suggest you read the FAQ, as many of your questions have been answered in there. As well teh search button helps a great deal to. But as far as making 5-600AWHP, it can be done for 7-8k, but you will need to choose parts wisely. PLENTY of people have 4-500AWHP cars that are in the low 12s/11s. That is pretty easily done (all things considered...obviously you need to buy the parts, keep it running, and tune it right). But once you start looking at 600AWHP the club grows smaller. Not to say its uncommon, I'm just saying this is where the parts get to be more $$$

Anyway, as far as the drivetrain. With that much power you'll definantly need a better clutch. Lighter flywheel isn't a bad idea either. A CF driveshaft is a great investment for $1k. Lighter wheels wouldn't hurt either. Basically the bitch of it is our transfer cases suck, there are brackets being designed/sold that help, but anything you can do to put less stress on them...the better. That is one of the main issues with our platform and high hp applications.

To see what a 3000GT should be running under their hood, check out Ray Pampena's 830-something horsepower VR-4.

SOHC are also 9:1 compresion, and if you want to go DOHC you have to swap engines, not just heads. The engines are completely different, but still 6g72's.

Well if I am going to potentialy be facing driveline probkems, I think I'll save myself alot of time and money and keep the stock turbos on, if I set my hp goals at say 450hp would I still be endangering the stock drivetrain? How much hp can the stock torbos handle? Does anybody sell a high proformence rebuild kit for the center diff?

Well if I am going to potentialy be facing driveline probkems, I think I'll save myself alot of time and money and keep the stock turbos on, if I set my hp goals at say 450hp would I still be endangering the stock drivetrain? How much hp can the stock torbos handle? Does anybody sell a high proformence rebuild kit for the center diff?

Stock turbos can't handle so much, I think the fastest time of stock turbos is 12ish.

Well if I am going to potentialy be facing driveline probkems, I think I'll save myself alot of time and money and keep the stock turbos on, if I set my hp goals at say 450hp would I still be endangering the stock drivetrain? How much hp can the stock torbos handle? Does anybody sell a high proformence rebuild kit for the center diff?

If you can get 450hp out of the stock turbo congratulations, it will be very difficult if not impossible. You will deffinatly need n2o.

There are no center diff upgrades.

If you want 450hp, I'd say go with 13t's.

If you want 450hp, I'd say go with 13t's.

or 15g's or dr650r's if you want them to bolt right up.

So what is the limit of the stock torbos?? Since there is no center diff upgrade how much hp can I run without making it a ticking timebomb.

So what is the limit of the stock torbos?? Since there is no center diff upgrade how much hp can I run without making it a ticking timebomb.

ray is running 830 awhp with his, he has mostly had engine issues

sorry that I'm knida late about this, but If you mean stock internals (with turbo upgrades I think, etc...) some guy on TT.net (not sure bout that it was tt.net) got like 700 or 750 RWHP out of his z with rebuilt stock internals... if K3's comes by, I'm sure he can clear it up...

Yea when it comes to making massive HP without any drivetrain/engine internals mods the 300zx and Supra are gods of the street. I love them, but they don't have AWD and that is somthing I really like, i just wish the 3000GT had that kind of drivetrain strenth it would rule the streets, and none would dare challange it :-) But at leased the DSM guys have the Evo for drag racing, but I will always love the style and personality of the 3000 even if I cannot make it into a nine second car.

Yea when it comes to making massive HP without any drivetrain/engine internals mods the 300zx and Supra are gods of the street. I love them, but they don't have AWD and that is somthing I really like, i just wish the 3000GT had that kind of drivetrain strenth it would rule the streets, and none would dare challange it :-) But at leased the DSM guys have the Evo for drag racing, but I will always love the style and personality of the 3000 even if I cannot make it into a nine second car.

the only weak link in the 3/S's drivetrain is the transfer case. ZX's and supra's dont don't have the same design because their engine is mounted transversly, and they are RWD. Usually the biggest problem for the transfer cases are on the launch, but they now make a metal cage for them that holds them in place. Of course with that, you will need solid motor mounts to keep both the engine and the transfer case mounted still so stress is taken off of them.

Anyways, when you start talking about a 9 second car, the reason you don't see 3/S's in the 9's is because you dont see people putting that much money into their cars. The people that i know with 9 second supras have put well over 50 grand into their car, not including the price they bought the car at. If done right, a 3/S can make it into the 10's with 10K. 15G's have yielded high ten's with the right set up, and those aren't very big turbos. I think its only a matter of time before the 3/S platform starts putting record breaking times down.