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Ok, let's put this one to bed people. Even the guys who made the car don't know the answer to this (well...), so lets put it to the vote...

 

What are the differences in horse power between the different models of 300ZX?

  • Replies 47
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as above 76 members have voted

  1. 1. as above

    • They are all 276bhp (because of the agreement in Japan)
      0
    • They are all 280bhp, and any quotes of 300 are in PS
      5
    • The Jap and UK are 280, while the yanks go one better with 300
      8
    • Early models are 300, but later ones are 280 due to emissions
      5
    • Manual TTs are 300 while auto TTs are 280 cos of the autobox
      6
    • Japs are 300 (cos they craazy) and the rest are 280
      5
    • Who cares it's a mighty fine car and you can mod it to 300 easily
      47

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The only thing i know is that the company stopped producing them over here due to emisions but continued to sell the zed in the states. also the states had a full drop top version.

Some Facts :

 

    The US Model are 300bhp, the claimed output of UK and JAP is 280

    Autos have Smaller Turbo's compared to Manuals

    VVT was removed in 1995 with is stated as reducing power to 280

    There was a gentlemans agreement to limit cars to 280bhp, which did not apply to the US.

    Most other High performance cars that claimed 280 to meet the agreement, are actually more powerfull

    Despite BHP differences stated, Torque always remains the same

 

    Black zeds are indeed far superior to all others

From what I heard.

 

Japanese have 280bhp,

US manual has 300bhp auto 280bhp,

Europe has 300bhp (but evidence suggests 280bhp)

Some Facts :

 

 

    Despite BHP differences stated, Torque always remains the same

 

 

well thats a contradiction of terms if you understand how bhp & torque are calculated :rolleyes:

well thats a contradiction of terms if you understand how bhp & torque are calculated :rolleyes:

 

Exactly ;) ...that point on the list says it all really.

well thats a contradiction of terms if you understand how bhp & torque are calculated :rolleyes:

 

I think he's just saying that regardless of what power is *quoted*, the torque figure is the same. Kind of implying that the claimed power was just to keep the cars within import / export rules, regardless of what they actually put out.

 

Anyway, how many people have put a stock car on a dyno? It'd be interesting to see...

 

Mark

    Black zeds are indeed far superior to all others

 

This is the only true fact...

You forgot the option :-

 

"Black has the most BHP"

 

;)

 

 

So it don't matter then. Get a re-spray and your there........

Any decent body shops around?

 

HMMMmmmmmm! the darkside is certainly looking better every day :dance:

And just to throw the spanner in the works, are these FWbhp figures or RWbhp.......:confused: any one know the true answer. :cool:

 

Viniboy you are correct.......get a Re-spray.......:bow: :tongue:

dyno1.jpg

 

found this on the internet amoung a few other dyno results, the tt seams to loom around 260 standard, but who cares, its still quick, and its a zed, and i still dont own one yet lol

well thats a contradiction of terms if you understand how bhp & torque are calculated :rolleyes:

 

??? with all the different turbos, fuelling revisions, vvt etc etc. you will get a different rpm value for your calculation giving different power figures, no?

After 12 years the figures mean nothing anyway, you need to have your car dynoed to truly know, then that figure is still open to dispute as we have seen on here before :D

After 12 years the figures mean nothing anyway, you need to have your car dynoed to truly know, then that figure is still open to dispute as we have seen on here before :D

 

 

YEAH! and whatever you get you know you have now got a faster website now to talk about it.

 

TT.tinternet...... :tongue:

 

Well done Mike

Eh ?? Auto turbos smaller than manual turbos thats not right is it. Baggins tells me that auto turbos are more powerful. Is he wrong ?? :confused: :confused:

  • Author

fraid so mate. autos have Garrett T25s and manuals have T28s. Something to do with the different gearing in the autobox and quicker spool-up. or sommat.

they both have T25's, autos have a different AR which spool up quicker but give less peak bhp, the cams are different also to compensate for this.

fraid so mate. autos have Garrett T25s and manuals have T28s. Something to do with the different gearing in the autobox and quicker spool-up. or sommat.

 

I put Garrett T28's on my car and they are much bigger than the standard manual Turbo. + they are 5 stud instead of 4. The auto and manual tubs look the same to me when you hold em side by side I couldn't see any difference.

+ if manuals are more powerful than auto's how come autos always do the best 1/4 mile times?

I put Garrett T28's on my car and they are much bigger than the standard manual Turbo. + they are 5 stud instead of 4. The auto and manual tubs look the same to me when you hold em side by side I couldn't see any difference.

+ if manuals are more powerful than auto's how come autos always do the best 1/4 mile times?

 

Autos have 0.54 a/r turbine housings

Manuals have 0.63 a/r turbine housings

 

This gives Auto's a reduced peak power, but lower down in the rev range for quicker spool up.

 

They made changes to the ECU and cam profiles to make up for loss.

 

Autos have 240 degree intake cams & 248 degree exhaust cams.

Manuals have 248 degree cams for both intake & exhaust.

An old boy who has worked for nissan in Bromsgrove for years tells me the import is 300 pony's an the uk is 280!! Who give's a monkey's eh, i love it :dance: It's mot time though, ask me if i love it next week!! :nelson:

Autos have 0.54 a/r turbine housings

Manuals have 0.63 a/r turbine housings

 

This gives Auto's a reduced peak power, but lower down in the rev range for quicker spool up.

 

They made changes to the ECU and cam profiles to make up for loss.

 

Autos have 240 degree intake cams & 248 degree exhaust cams.

Manuals have 248 degree cams for both intake & exhaust.

 

So are you telling me that without a micrometer you can spot the difference, Because I held both in my hands and like I said they look the same and most defo nothing like the T28's. You wouldn't even tell the cams appart unless you mesured em.

So are you telling me that without a micrometer you can spot the difference, Because I held both in my hands and like I said they look the same and most defo nothing like the T28's. You wouldn't even tell the cams appart unless you mesured em.

 

 

they are smaller :p

 

even if you dynoed a stock z it wouldnt be a true reading aftert 12years or more cars loose performance so no one will ever know! id say 280 throughout

+ if manuals are more powerful than auto's how come autos always do the best 1/4 mile times?

 

Because you don't have to change gear ;) Plus you don't come off boost when the auto is shifting, so it's back on the power harder and faster than a manual (kinda, anyway).

 

A lot of bracket racers are auto for that reason, easier to be consistant, and quicker than shifting a manual (plus with a turbo you can have a really high stall speed, and build big boost before even moving if you hold the brakes and rev it up to just before the stall point).

 

'course, "proper" dragsters are manuals :D (Well.. not much like a normal manual gearbox, admittedly.. :rofl: )

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