I Want My Skyline To Rev

[illusiVe]

Hey guys/girls....there maybe one...

anyway. My ER34 is off the road for 3 months..along with my driving habits (guess why *cough*), Im wanting to make my engine alot more revvy (not so much past 7/8k) buy more from idle - redline speed.

Im already working on Lightweight flywheel + Carbon tailshaft + lightweight rims, and general weight removal throughout the car.

Just want to know engine wise, what can I do to make my engine rev alot faster.

My goal is 220RWKW, with as much reponse, torque etc i can get out of it. Its for the touge, the touge, the touge. So my biggest enemy is turbo lag.

I already have:

(although barely any of this is to do with engine response/revs)

3" Exhaust, Bride bucket seat, Carbon bonnet, coils.

[Faid]

Get a super responsive turbo, like the APEXi RX6 B. I have friend here with a S2 GTST with a RB 25 and that turbo, it moved like crazy. what i would suggest is getting your rotating assemly lightend, crank machining, lighter pistons, lightened pulleys, a good damper. get some cams to make the midrange - high end power, get a ECU that can control your VVT, thats about what i can pul out of the hat for you.

[paulr33]

just increase the average power everywhere

theres no need to rev to 8 or past it

7 is fine and plenty enough

do the basic bolt on mods and it will be fine

[Mr. Oizo]

reduce the reciprocating mass

so, as you said lightened flywheel, carbon tailshaft

also, im not sure if you can get lightweight pulleys for the rb25, but if you can, get some

are you rebuilding the engine internals?

[satanic]

Want revs huh? Just drop a PFC in it and set the rev limiter to 12,000rpm Your engine will love you for it...

Nah seriously,

* Pod

* Turbo Upgrade (hi-flow?)

* Cams

* ECU

* Fuel Setup

I wouldn't be too concerned with the weight reduction stuff... if you're aiming for 220rwkw; you'd be able to piece a setup together that will enable you to pull enough power to move that mass.

[paulr33]

if you are serious, which i dont think you are then

strip the boot interior

strip the rear seat interior

change the rear diff gears

heavy duty clutch

powerfc & boost kit & tune

hiflowed turbo

split dump exhaust

fuel pump

cold air intake kit

fmic

suspension complete overhaul (to get the power down)

-shocks, bushes, camber, castor for all 4 corners & pineapples for the rear

good rubber with suitable pressure

[rev210]

The question he is asking is quite a good one.

Notice he said 'not so much past 7/8k but, from idle to redline?

He's not trying to rev the motor to 14,000rpm. The goal is 220rwkw as a peak value.

Cover;

Reducion in rotational mass

Increasing the average power across the desired rpm range,

Reduction in total mass (power to weight)

and finally optimised gearing

is a short answer.

The power goal you have is sensible but, one last thing is getting an optimised response monster's power to the ground. You will need to look at tyres and suspension too.

PM for some more info if you like.

[mad082]

wind as much timing into it as possible. that will help.

[SimonR32]

more timing

less fuel

and a rb20 upgrade

[Munna1]

Stage 1 mods at my site (in sig) will get you around the 200rwkw mark with a freed up stock turbo so very responsive if you want your 220 go a GT-SS, 2530 or a APEXi RX6 B.

[BBQ]

300 Shot of Gas will make it Rev my friend !

[DazWah]

put a higher diff ratio, from memory r33 gtst are 4.3's i assume the r34s are the same. By putting a higher diff ratio engine should rev quicker.

[Abo Bob]

Manual R34 is 4.111, auto is 4.083.

Diff centres are interchangeable so if R33 GTST diffs really are 4.3 then that would work. Highway fuel economy will suck the higher you go though, actually economy generally.

[Gav]

Keep the clutch pedal depressed - I find the engine is extremely responsive to revving by doing this.

[R31Nismoid]

Keep the clutch pedal depressed - I find the engine is extremely responsive to revving by doing this.

lol, i had that happen, it was amazing

Anyhow, on topic, if you read the sticky FI Guide, you'd come along to this thread which covers more than just the topic at hand, but more surrounding issues aswell.

And old thread, but still a very very good one, so read the whole thread

http://www.skylinesaustralia.com/forums/in...?showtopic=9445

[scathing]

If you do decide to go for a rebuild, as well as getting lightened internals you might want to up the compression as well.

You only need low compression for big boost - if you're running low boost then a higher compression won't matter so much, but you'll pick up more power and response. Especially off-boost.

I don't know if it'll make the engine more willing to rev to redline, but it will make the engine pick up in the midrange (which is what you want for touge).

[SKY 34]

where did you get carbon drive shaft?

[illusiVe]

havent yet sky 34, just working towards it.

Rear of boot + rear seats/ rear interior are gone.

rear speakers are gone, passenger door internal pannels are gone,glove box is gone.

So would anything like cams/cam shafts help response?

If i did get a hi-flo, i wouldnt want too much that would increase lag.

ATM im more wanting to work on engine response throughout the rev range.

Gear ratio/diff ratio sounds awesome too.

i think what i want is the engine to rev faster, even if in neutral. i'd like to work on the engine to learn more. love to rev from idle-7/8k in 1 second... mmmmm F1 response.. u know what i mean..

i hope.

thanks for the other suggestions, open to more. will be looking at that thread as suggested.

[jeffworld2]

to blip the throttle in neutral, you need to lighten pulleys, flywheel etc, remove anything draining on the engines spin eg. the A/c and perhaps rebuild with lighter, fully balanced internals. I doubt it would be anything like what you are finding in gt4 though...

if you want to do it in gear, you need everything as above, but more power too. It can only rev as quick as it pulls.

or buy shit rear tyres

[The Mafia]

I like this thread.