on brand-tuning screw-ups

[darkblu]

ok, is it just me or are some of the brand-tuned cars' tunings totally, and i mean _totally_ screwed up?

take the nismo 400r for example - this car's stock transmition is so wrong it took me 2 days and a couple of lost championships to get it to any meaningful level of performance. and i mean just the transmition (the car has enough stock hp's under the hood)

so what do i find so fundamentally wrong with the 400r?

first and foremost, it's a 5gear tranny - a bit non-conventional for such power input as the one produced by the car's stock engine.

so apparenty the logic behind that stock final ratio of 4.111 was to compensate for those really long gears.

in practice the car would hardly go beyond 230km/h! that's a 395hp skyline gt-r we're talking about!

so, after quite some tampering and blown races here's my present setup (i have not touched the power block at all)

1. a racing exhaust (the car's engine is way too volumous turbo for a semi-racing one)
2. transmition: fully customisable, ratios - auto 10, final ratio - 2.5 (that's the smallest possible ratio for this setup)
3. tripple plate clutch, racing flywheel

now the car speeds up reasonably.

so does anybody else have any better ideas for extracting the full potential out of this otherwise fine car?

 

[Scaff]

Personally I love the 400r as it is, stock I find it a blinding car, with a great spread of torque. An amazing car around the twistier tracks.

For the record the 400r was built (all 99 of them) with a five speed box, so its hardly PDs fault on that front, rather thats how NISMO built them.

NISMO 400r info

Additionally the 400r was built principally to demonstrate the handling prowess of the car, rather than outright v-max.

Of course if it does not suit you then thats fine, each to his or her own. however that doesn't strictly speaking mean that PD screwed the car up, just that the car in its standard form may not be right for you (it certainly is for me).

Regards

Scaff

BTW - How do you know what the stock ratios are? If its by fitting a FC transmission you should be aware that the default ratios on an FC box are not the same as the default values with no gearbox upgrade fitted.

 

[GM]

The Nismo 400R is brilliant, although I find it a little slow, great handling though 👍

 

[darkblu]

BTW - How do you know what the stock ratios are? If its by fitting a FC transmission you should be aware that the default ratios on an FC box are not the same as the default values with no gearbox upgrade fitted.

hmm, that could be it. i have no memories whether i first drove the car and then dissatisfied with its performance bought the FC box or i went right away with the modification.. the perils of late night gt sessions. but you're right - i totally forgot that FC comes with its own defaults. i'll try it tonight with stock and see what its original transmition was like.

but still a gears ratio at auto 10 and final ratio at 2.5 goes very well with this nismo .. for my liking : )

ps: thanks for the 400r history link!

 

[Scaff]

hmm, that could be it. i have no memories whether i first drove the car and then dissatisfied with its performance bought the FC box or i went right away with the modification.. the perils of late night gt sessions. but you're right - i totally forgot that FC comes with its own defaults. i'll try it tonight with stock and see what its original transmition was like.

but still a gears ratio at auto 10 and final ratio at 2.5 goes very well with this nismo .. for my liking : )

ps: thanks for the 400r history link!

No problem at all.

According to the link it should do 0-60mph in around 4 secs and v-max at 196mph, might have to give than a go on the stock car when I get a chance.

Regards

Scaff

 

[zefff]

Shifting early helps too...study the torque curve and you'll see why. The downside of a RB28DETT We really could do with mappable ECU in GT5 me thinks!

 

[Scaff]

Shifting early helps too...study the torque curve and you'll see why. The downside of a RB28DETT We really could do with mappable ECU in GT5 me thinks!

Quite agree, shifting early is certainly needed with this car, and mappable ECUs would get my vote in GT5.

Scaff

 

[darkblu]

i should really cut on those late night gt sessions.. i stand corrected and i take back practically everything i said about the 400r - with very exhaustive transmission tuning and testing i performed tonight i could not produce a vmax more than 1km/h above the stock tranny, and it totally trounces my vmax-oriented setup at 1st gear. yes, the stock has a certain deficiency at 3rd, and particularly 4th gear (namely, early power cut off)), but as you guys noted nothing that some early shifting could not remedy. bottomline being, i should give up those late night tunings.

 

[zefff]

Quite agree, shifting early is certainly needed with this car, and mappable ECUs would get my vote in GT5.

Scaff

Hahaha! So its not just me who dreams of being able to set rpm limits, choose when and how turbos spool with anti-lag systems, seqential or simultaneous spool on a twin turbo, adjusting and fine tuning variable valve timings or VTEC/MIVEC cam switch timings. I would also love to see bore and stroke able to be implented individually for each car so its not just a displacement increase but a choice of wether to bore or stroke or both and by how much....ahh I cant wait for GT8 when just buying everthing will not neccessarily make the best car!

Sorry to go off topic but the Nismo 400R made me think of these things.

 

[darkblu]

Sorry to go off topic but the Nismo 400R made me think of these things.

nah, it's a good tangent. further alogn it, it would be great if you could get maps from real-life ecu's and use them in-game. too bad those racing ecu's have secure comm channels : )

 

[zefff]

They would be in the game anyway, or at least approximations just like every other characteristic for when you aquire a new standard car.