Hard Induction Piping - Benefits?

[Phil 34GTR]

I have done a lot of reading over the last few months to establish what I need to do to with my typical Stage 1 (PFC, exhaust, Apexi intake, EBC) modified 34GTR to achieve the following goals:

Maintain (as far as is possible) low end response provided by stock tubbies

Attain a "safe" 400-420 rwhp

I have deduced that I need to upgrade as follows:

Garrett -9's (or GTSS if only the Forex rate was circa Q108)

AFM's (Z32's or NIsmo)

Min 550cc (more like 600cc) injectors

Fuel pump (Nismo or Bosch)

Re-map and tune

My questions are (considering the added expenditure):

1. Is there any "real" benefit in fitting a full induction hard piping kit (e.g HKS SPF)?

2. Do I need to change the stock coil packs?

3. Have I missed anything else, given that I am not chasing high end hp (nor will be in the future)?

Any helpful comments would be very much appreciated.

[rtune]

I have done a lot of reading over the last few months to establish what I need to do to with my typical Stage 1 (PFC, exhaust, Apexi intake, EBC) modified 34GTR to achieve the following goals:

Maintain (as far as is possible) low end response provided by stock tubbies

Attain a "safe" 400-420 rwhp

I have deduced that I need to upgrade as follows:

Garrett -9's (or GTSS if only the Forex rate was circa Q108)

AFM's (Z32's or NIsmo)

Min 550cc (more like 600cc) injectors

Fuel pump (Nismo or Bosch)

Re-map and tune

My questions are (considering the added expenditure):

1. Is there any "real" benefit in fitting a full induction hard piping kit (e.g HKS SPF)?

2. Do I need to change the stock coil packs?

3. Have I missed anything else, given that I am not chasing high end hp (nor will be in the future)?

Any helpful comments would be very much appreciated.

put the money on the fuel pump toward an oil cooler.. stock fuel 34gtr pump is quite ok.

550cc would be ok then they can be nismo.

metal gasket.

stock intercooler is fine.

no need for hard pipe kit.

[R31Nismoid]

1. No benefit - If anything a hindrance with comp surge sometimes being a problem. If it aint broke - dont change it

2. Probably, R34 GTR packs are average. You'll only find out once you get to tuning and i would wait until you know they are stuffed as they might be ok.

3. you've got it fine there really, a good clutch is the only thing left

[toddlls]

No benefit other than a nice induction noise. your no where near the power to collapse the rubber stock pipe but who can tell these things truely.

Any exhaust shop could make you one up if your after one so no need to spend big just to get the label if you decide to get one anyhow

[frosty_the_snow_man69]

solid induction pipes means more TU TU TU TU

[Bakes]

one benefit: it looks good

[Phil 34GTR]

Many thanks for your comments thus far guys, extremely helpful. In my particular case, they pretty much confirm what my research had nearly concluded; no real performance gains on the hard piping, but it would sure look good! Thanks also Nismoid for your comments re coil packs, I certainly will work with my tuner on that in a couple of weeks time.

[Johnny]

Throw in some cam gears and do your timing belt while your at it, i know that your car probably has only 30-40k on it but because they are getting a little old, rubber parts can corrode so for piece of mind and extra midrange torque cam gears are a way to go.

most mods depend on how you drive also, if you cruise and occasionally give it a squirt then an oil cooler aint nessesary but if you do track days, then its a must.

oh and while yu got it at the shop have the intercooler removed and flushed with degreaser as oil buildup can drasticaly inhibit heat transfer.

[Phil 34GTR]

Throw in some cam gears and do your timing belt while your at it, i know that your car probably has only 30-40k on it but because they are getting a little old, rubber parts can corrode so for piece of mind and extra midrange torque cam gears are a way to go.

most mods depend on how you drive also, if you cruise and occasionally give it a squirt then an oil cooler aint nessesary but if you do track days, then its a must.

oh and while yu got it at the shop have the intercooler removed and flushed with degreaser as oil buildup can drasticaly inhibit heat transfer.

Thanks for the advice Johnny, funny how decided only yesterday to do exactly what you suggest re cam gears and belt! Did you ever fit the -7's by the way? If so, how is she running?

[W0rp3D]

Many thanks for your comments thus far guys, extremely helpful. In my particular case, they pretty much confirm what my research had nearly concluded; no real performance gains on the hard piping, but it would sure look good! Thanks also Nismoid for your comments re coil packs, I certainly will work with my tuner on that in a couple of weeks time.

Where are you, if you are in an enviroment where it is 30+ degrees everyday then maybe the hard pipes might be needed.

[Johnny]

Thanks for the advice Johnny, funny how decided only yesterday to do exactly what you suggest re cam gears and belt! Did you ever fit the -7's by the way? If so, how is she running?

Na i decided a little while ago as its cheaper to do cams gears and belt in a kit as it would work out much cheaper labour and part wise; ive put away money now to do everything at once.

I never got to do the turbos cos im still debating which ones to buy plus i just bought a BMW and a Getz so money is a little tight atm, cars still runniong perfectly though.

oh and for turbos im gonna go -9's as they as halfway between n1 and 2530 which i had an opportunity to pilot recently and they are way too laggy for daily duties.