Skyline GTS-T: Initital Mods???
Discussion
Hey guys,
Last night I picked up a bog standard GTS-T Skyline and was considering spending a few bob getting the performance up a bit.
It currently has a 5" tail piped backbox, but other than this nothing I don't think.
What are the best 'cheap' modifications to start with for these cars? I was thinking custom cat-back exhaust made up and a mushroom air filter?
Any ideas? The car is an Auto as well if this makes any difference.
Thanks!
Last night I picked up a bog standard GTS-T Skyline and was considering spending a few bob getting the performance up a bit.
It currently has a 5" tail piped backbox, but other than this nothing I don't think.
What are the best 'cheap' modifications to start with for these cars? I was thinking custom cat-back exhaust made up and a mushroom air filter?
Any ideas? The car is an Auto as well if this makes any difference.
Thanks!
After reading your other thread and looking at the pic of the engine bay, if it were me, I’d be tempted to spend money in tidying the car up first before modding. Not having a dig at the car btw! I’d make sure all the suspension and ball joints etc were nice and tight, overhaul the brakes too and then spend some time cleaning the engine bay up. By that time you should have been driving the car enough to know whether you have a reliable engine or not. Then I would start, by doing the usual airfilter and intercooler etc. Then fit a boost controller and lift the boost slightly.
For me, the one thing that makes the Skyline is the sheer size and presence of what’s under the bonnet; that’s why I’d make it look the business as well and make it go well.
If you need any advise about modding – mine is running just over 400bhp, give me a shout.
Gratuitous engine bay shot: I need to re-clean bits and bats now, but it can look good without having to replace all the pipes and hoses etc...
Also, with only a little elbow greese and an afternoon, you can clean the headlights up as I did here:
http://www.skylineowners.com/forum/showthread.php?...
For me, the one thing that makes the Skyline is the sheer size and presence of what’s under the bonnet; that’s why I’d make it look the business as well and make it go well.
If you need any advise about modding – mine is running just over 400bhp, give me a shout.
Gratuitous engine bay shot: I need to re-clean bits and bats now, but it can look good without having to replace all the pipes and hoses etc...
Also, with only a little elbow greese and an afternoon, you can clean the headlights up as I did here:
http://www.skylineowners.com/forum/showthread.php?...
Firstly the boost mod , the GTST has a 2 stage solenoid that gives lower boost and low rpm and switches to higher setting as the rpm rises , you can wire it to high boost all the time , costs pennies do a search on the forums
Imo only change the intercooler if you change the turbo the stock one is fine for 330-340 and a fmic will induce more lag get hold a R34 GTT sidemount if you can they are much deeper and a worthwhile mod
other things
Walbro 255 fuel pump
decat
Elbow
induction kit
I wound my old GTST to around 475hp on totally stock internals , it was no slouch , when you could get traction
Imo only change the intercooler if you change the turbo the stock one is fine for 330-340 and a fmic will induce more lag get hold a R34 GTT sidemount if you can they are much deeper and a worthwhile mod
other things
Walbro 255 fuel pump
decat
Elbow
induction kit
I wound my old GTST to around 475hp on totally stock internals , it was no slouch , when you could get traction
Hey, thanks for all the responses guys, you are dead right about getting the car upto a decent stock standard first. It's been looked after relatively well to a certain degree, but it could do with a fair bit of work before I contemplate adding more power.
One problem I'm having at the moment is the car seems to only boost and accelerate to around the 4500RPM range and then hit a massive flat spot. Having read up on this issue there's no difinitive answer as to what it could be.
I knew it would need a fair bit of work hence why I only gave the chap a grand for the car, which I think for a taxed and tested GTS-t isn't too bad. I owned a GTS 2.5 NA before and loved it to bits, now I've got the Turbo model I want to get it running just like a trubo should.
In regards to the headlights, I did them up on my last Skyline and they do come up a treat, as you say just needs alot of elbow grease, lol
Any help and advice regarding the 4500RPM flat spot would be greatly appreciated. If it's a case of getting the car running at full boost to make the problem dissapear then so be it.
One problem I'm having at the moment is the car seems to only boost and accelerate to around the 4500RPM range and then hit a massive flat spot. Having read up on this issue there's no difinitive answer as to what it could be.
I knew it would need a fair bit of work hence why I only gave the chap a grand for the car, which I think for a taxed and tested GTS-t isn't too bad. I owned a GTS 2.5 NA before and loved it to bits, now I've got the Turbo model I want to get it running just like a trubo should.
In regards to the headlights, I did them up on my last Skyline and they do come up a treat, as you say just needs alot of elbow grease, lol
Any help and advice regarding the 4500RPM flat spot would be greatly appreciated. If it's a case of getting the car running at full boost to make the problem dissapear then so be it.
I would be looking for some sort of boost leak if it loses it's pull at higher RPM (when in theory higher boost would be achieved)
One way to check for leaking hoses is to spray some WD40 on them when the engine is running, if the revs rise/change then it's likely some WD has been sucked in through the pipe. Only do 1 pipe at a time though or you'll have no idea where the leak is.
Do you have any warning lights showing? Do they light up correctly before you start the car? A common trick for a problem car being sold is to remove the bulbs from warning lights.
One way to check for leaking hoses is to spray some WD40 on them when the engine is running, if the revs rise/change then it's likely some WD has been sucked in through the pipe. Only do 1 pipe at a time though or you'll have no idea where the leak is.
Do you have any warning lights showing? Do they light up correctly before you start the car? A common trick for a problem car being sold is to remove the bulbs from warning lights.
Well, there is a split hose on top of the engine rocker cover, a short one that comes from the left hand side of the rocker cover then goes into another pipe on the right? This has been bodged up with tape so I need to replace this hose ASAP.
I'm not driving the car at the moment until I replace that hose and replace the sidelight bulbs, (Which are BLUE!).
The warning lights as far as I can remember all come on when you start the car up. The seatbelt light works, the handbrake light works and so does the overdrive light, does this mean that ALL other warning lights would also work? If so then I have none coming up.
I'm not driving the car at the moment until I replace that hose and replace the sidelight bulbs, (Which are BLUE!).
The warning lights as far as I can remember all come on when you start the car up. The seatbelt light works, the handbrake light works and so does the overdrive light, does this mean that ALL other warning lights would also work? If so then I have none coming up.
I don't have a Nissan myself but a Toyota and there is an engine warning light that will show if any fault codes are detected. I'm sure the Nissan must have similar. This would be the main one I'd be looking for when turning the ignition on. They normally look like an engine, this should come on when the ignition is turned on but go out when the car is started. As I said I don't have a Nissan but most cars have this type of warning light.
eybic said:
I don't have a Nissan myself but a Toyota and there is an engine warning light that will show if any fault codes are detected. I'm sure the Nissan must have similar. This would be the main one I'd be looking for when turning the ignition on. They normally look like an engine, this should come on when the ignition is turned on but go out when the car is started. As I said I don't have a Nissan but most cars have this type of warning light.
Sound advice - turbo faults can be devilish, better to get the best idea of the root cause from a fault coding reading rather than throwing money at everything.Off the top of my head though, I don't know what the hose is that has tape on it, but you are right to want to change it. My inclination is to believe that is there is a boost leak, it would be flat as a fart right through the range, as any boost pressure that tries to build will just whoosh straight out of the leak. For that reason, I'd be suspecting the two-stage boost solenoid mentioned earlier, if that is not functioning properly, when it tries to switch to the high boost setting it will just fail and the car will feel rubbish to drive at high revs.
As mentioned though, a fault code reading would do wonders, so perhaps consider a Skyline owners club to see if there are any local guys who can help out for a crate of beer or whatever.
Quick update: Since replacing the split pipe and removing the muffler shoved into the exhaust the car seems to be performing amazingly well, no flat spot and revs right to the red-line with the boost pressure rising up just as it should.
I also cleaned out the K&N air filter as well. These very minor changes seem to have completely cured the car of ANY issues whatsoever.
I have nearly killed myself quite a few times, this thing is bloody mental!!!! haha
I also cleaned out the K&N air filter as well. These very minor changes seem to have completely cured the car of ANY issues whatsoever.
I have nearly killed myself quite a few times, this thing is bloody mental!!!! haha
Darren156 said:
I have nearly killed myself quite a few times, this thing is bloody mental!!!! haha
Darren156 said:
I have the factory fit tyres on stock wheels which are 205/55/16" Pirelli P6000's.
That'll be why then! Put some proper tyres on it that will actually give you some grip 
Boo to the cheap b
d who owned it before you for saving a few quid on one of the most important items on a car!Edited by Marf on Friday 2nd December 16:35
Marf said:
That'll be why then! Put some proper tyres on it that will actually give you some grip
Boo to the cheap bd who owned it before you for saving a few quid on one of the most important items on a car!
+1 , 235 tyres on the back as a minimum , 225's on the front Boo to the cheap b
d who owned it before you for saving a few quid on one of the most important items on a car!Edited by Marf on Friday 2nd December 16:35
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