R34gtt Intercooler Into Stagea

[GoldZilla]

Bump!

[Bond]

Thought i would dig up an old thread.

Got my r33 tuned with a r34 smic and hit 210rwkw (11psi) b4 my afm maxed out (i have a gt3040 and dr drift remap). I just bout some injectors and a z32 and going to get it dynoed again. I'm not sure how far it will go but will be interesting to see how it goes at around 14psi.

Its still fairly cool in melbourne so i wonder what it will be like in summer. I was thinking of bolting a small thermo fan on the back and just leave it running (only draw 3.5 amps) May not do much but has to be better than nothing when sitting at the lights.

I probably wouldnt bother doing this if i was using it for track work but my car is daily driven. I might give it a little for 2 gears and then back off so i cant see it suffering too much from heat soak but time will tell. As i'm using a remapped ecu i'm guessing it should knock back the timing if it pings (anyone confirm)??

Anyway i will hopefully give this all a go some time next week.

James

[_Ryan_]

Sam would know best, i use one... love it, rad still gets all flow, looks stock etc. Try water/metho mix as waterspray

Ryan

[DaveB]

Thought i would dig up an old thread.

Got my r33 tuned with a r34 smic and hit 210rwkw (11psi) b4 my afm maxed out (i have a gt3040 and dr drift remap). I just bout some injectors and a z32 and going to get it dynoed again. I'm not sure how far it will go but will be interesting to see how it goes at around 14psi.

Its still fairly cool in melbourne so i wonder what it will be like in summer. I was thinking of bolting a small thermo fan on the back and just leave it running (only draw 3.5 amps) May not do much but has to be better than nothing when sitting at the lights.

I probably wouldnt bother doing this if i was using it for track work but my car is daily driven. I might give it a little for 2 gears and then back off so i cant see it suffering too much from heat soak but time will tell. As i'm using a remapped ecu i'm guessing it should knock back the timing if it pings (anyone confirm)??

Anyway i will hopefully give this all a go some time next week.

James

Thanks for the info' James... I have a S2 stagea which comes standard with the R34 smic and I wanted to know if I could get near 200kw on the standard smic... that's the first info' I've been able to find from someone actually doing it.

[Bond]

The 210rwkw was done fairky easy with the smic but maybe it was because of the different turbo making that power at a lower boost level (around 11psi) thus less heat.

Anyway i will just see how it goes. If the tuner says not to go over a certain psi then i wont. I'm using it cause i got it off ebay for $50 delivered (mint condition) and also have a thermo fan just sitting in the shed. I also have a different front bumper that allows a lot of air flow and i didnt use the black ducting.

[KiwiRS4T]

The 210rwkw was done fairky easy with the smic but maybe it was because of the different turbo making that power at a lower boost level (around 11psi) thus less heat.

Anyway i will just see how it goes. If the tuner says not to go over a certain psi then i wont. I'm using it cause i got it off ebay for $50 delivered (mint condition) and also have a thermo fan just sitting in the shed. I also have a different front bumper that allows a lot of air flow and i didnt use the black ducting.

Good to hear. I managed to find a Trust SMIC which is a little larger then the R34GTT one and I have no problems at 10.5 psi and 155 AWKW but I am saving up for a new turbo and aiming for at least 200AWKW at about 1 bar and hoping to keep the SMIC.

I don't know how good remapped ecu's are at adapting to different configurations - some need to be rechipped although allegedly some are tunable but i haven't been able to pin that down. I have an Apexi SITC to adjust the timing across the range.

[rev210]

As posted at the begining these are great little budget performers for modest power levels.

Bond,

You will find that if you aren't doing sustained amounts oth thrashing the smic will be fine for road duties and even a little track time at the drags.

The location of the smic is good for static traffic situations and helps with heat soak.

A quality front mount intercooler will start to offer some value on this turbo as the power starts climbing over 230rwkw. This turbo has the legs to do it so keep it in mind.

[Bond]

^^^ I can see myself getting a front mount in the future as i have seeen the potential with this turbo from the previous owner. I thought i would just give this ago.....see what happens and post it up on here for other to see.

On the dyno we will wind it up to its limmits and then back it off to be safe. I want to get the thermo fan on it b4 i go as it should help with continuous runs on the dyno. Last time it was on the dyno i put my hand where the SMIC was and felt hardly any airflow. My only problem is i HATE wiring things up!!! I know its not hard but its my pet hate

Cheers

[gotRICE?]

its not very fair on a dyno as the fan isnt generally directed at the side mount.

[Bond]

I hooked up a 9 inch thermo fan to the SMIC yesterday. If i would do it again i would use a 7 inch fan as this one overlaps slightly but still seems to push a lot of air. I wanted to mount it on the back of the SMIC but the mounting brackets got in the way so its at the front pushing air through. I happend to find the wire for the factory fog lights right next to the cooler. The fan only draws 3.5 amps so the factory wiring is fine and i have a switch and relay already there!!!! Because of the low power usage i ahve just been leaving the fan on while driving. Not sure of the difference it makes as only running 200rwkw and the cooler pipes always feel cool to touch anyway but i'm sure it has to make a difference.

THe r34 smic is quite thick and even with the fan it takes a lot of effort to force air through it so i cant see how it works in its factory position in traffic. I used the padding from the factory duct to seal the fan better and it made a big difference with how much air is actually forced through the entire cooler rather than just blown over the front.

Anyway i spoke to my tuner and his dyno is having troubles so i might not be able to get it dynoed b4 i go back to work. I recomend mounting a fan as its cheap, easy and seems to draw a lot of air through the cooler. I have seen the same fan on ebay for $27....so not exactly expensive.

James

PS: I have ticked the email notification box but i never get emails when ppl post!!

[KiwiRS4T]

I hooked up a 9 inch thermo fan to the SMIC yesterday. If i would do it again i would use a 7 inch fan as this one overlaps slightly but still seems to push a lot of air. I wanted to mount it on the back of the SMIC but the mounting brackets got in the way so its at the front pushing air through. I happend to find the wire for the factory fog lights right next to the cooler. The fan only draws 3.5 amps so the factory wiring is fine and i have a switch and relay already there!!!! Because of the low power usage i ahve just been leaving the fan on while driving. Not sure of the difference it makes as only running 200rwkw and the cooler pipes always feel cool to touch anyway but i'm sure it has to make a difference.

THe r34 smic is quite thick and even with the fan it takes a lot of effort to force air through it so i cant see how it works in its factory position in traffic. I used the padding from the factory duct to seal the fan better and it made a big difference with how much air is actually forced through the entire cooler rather than just blown over the front.

Anyway i spoke to my tuner and his dyno is having troubles so i might not be able to get it dynoed b4 i go back to work. I recomend mounting a fan as its cheap, easy and seems to draw a lot of air through the cooler. I have seen the same fan on ebay for $27....so not exactly expensive.

James

PS: I have ticked the email notification box but i never get emails when ppl post!!

Do you have an form of electronic boost controller? If you have one , such as the Jaycar IEBC you could take a feed from the solenoid so that the fan only comes on when you are on boost. Or alternatively you could peobably get a cheap pressure switch).

When I got my dyno run I asked the operator to direct some of the cooling fan towards the SMIC but they didn't do that. Not a real problem as it was just a 30 second power measurement but if I was getting tuning done on the dyno I would try to make sure the operator understood what was being asked and get some cooling air through the SMIC.

[Bond]

Nahh no electronic boost control. I actually want it on even when its not boosting so it has time to cool down after its off boost so its ready for when i'm on boost again (does that make any sense?)

[Bond]

Got my injectors and z32 put in yesterday along with a tune. First off it made 235rwkw on 16psi but after a couple of runs it started to get heat soak and ping. Tuner wound it down to 14psi and still problems up top so had to retard timing a lot after around 5500rpm. I have gained around 25rwkw in the midrange but top end has still only got around 210kw.

The car did seem not right as we previously made 210 on 2psi less boost with a lot more timing. I'm not sure if something else is wrong or if i got some bad fuel. I will be upgrading to a front mount soon. It was aa little warmer yesterday but nothing compared to summer.

[KiwiRS4T]

Got my injectors and z32 put in yesterday along with a tune. First off it made 235rwkw on 16psi but after a couple of runs it started to get heat soak and ping. Tuner wound it down to 14psi and still problems up top so had to retard timing a lot after around 5500rpm. I have gained around 25rwkw in the midrange but top end has still only got around 210kw.

The car did seem not right as we previously made 210 on 2psi less boost with a lot more timing. I'm not sure if something else is wrong or if i got some bad fuel. I will be upgrading to a front mount soon. It was aa little warmer yesterday but nothing compared to summer.

Extended dyno run is extreme use for SMIC a well ducted one on the road will get a lot more air through it. While max KW is of interest take a 80 to 120 km/hr time at each stag of tune to see actual improvement in performance. What kind and size are your new injectors?

[Bond]

^^^My new injectors are 555cc. Yes i'm not that concerned with the max power as i gained a lot through the midrange but it feels funny when i rev it and it pulls hard and then at around 6k it just revs with no gain. Starting to lose traction now in second at around 4k (265 rear tyres) so i will need to concentrate on the rear end soon.

I would have thought my thermo fan would have done a better job but yesterday proved otherwise. What i did notice was the bottom half of the SMIC was cooler than the top. Might have worked better with a shroud but i cant be bothered. I'm looking at around 260rwkw pretty soon, so a front mount is my only option. My r34 SMIC will be for sale soon so let me know if your keen!!

The first run where we hit 235rwkw it did not knock at all. When it did start he backed off timing and kept knocking, backed off boost and kept knocking so took it down to 14psi and took more timing off. This tune is a safe compromise as its great midrange and dies off early. I could have knocked it down to 11psi and made the same top end figure but lost in the middle.

Can anyone tell me if having a lot of timing taken off in the top end is doing any damage??? I have started to just shift early and use all my mid range......still fun to drive!

[Dr_Drift]

The retarded ignition up high will increase exhaust temps, may do damage if you sustain high rpm or track work as advised when you were here. I'd suggest changing before 6000rpm and you'll be safe, you've got plenty of midrange now, just wait till we get some better cooling and wind it up! As for the 34 SMIC I would suggest they'd be a lot better with ducting etc, but no difference on dyno to road as a lot of people suggested, I've got the larger fan available with the dyno, and this was directed directly as your smic.

I'm pulling the HKS FMIC off tomorrow for you

Sam.

[Bond]

I fit a front mount so the smic is now for sale (look in sale section)

There is a noticable amount of lag now (doesnt ramp up as quick) so unless your aiming for over 200rwkw i would stay with the side mount.

[Tangles]

I fit a front mount so the smic is now for sale (look in sale section)

There is a noticable amount of lag now (doesnt ramp up as quick) so unless your aiming for over 200rwkw i would stay with the side mount.

retune, then say that again

!!

lol

[Dr_Drift]

I'd suggest it would be flowing more (less ignition) combined with the retarded ignition from the old map to prevent detonation, I would be worried if it didn't feel less responsive, would suggest the cooler is in deed flowing a lot better!

Can't wait to re-tune it for back to back comparrison.

[Bond]

There is no doubt it will flow and cool better but initial response will have to be effected (just look at the bigger core and more piping that has to be filled). At 200rwkw the smic was fine and did a great job so i dont see how a front mount for daily driving is needed (in cold melb). I will comment after retune though, as i like to be optimistic.

I'm not sure what is left to do after this as i should be seeing the limits of my turbo after the next tune

Edited November 1, 2008 by Bond