R34 Smic On R32 - Results!

[Rekin]

Hello

After a long think, i decided to go down the path of R34 Smic on the R32 as a suitable cooling upgrade.

Some specs of the side mount intercoolers;

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R32

Length: 205mm Height: 190mm Width: 60mm Volume: 2337cm^3

R34

Length: 205mm Height: 220mm Width: 80mm Volume: 3608cm^3

Volume difference of 1271cm^3

Therefore;

R34 smic is 54% larger than the R32 smic (relative to the r32 cooler)

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R34 has been stated by others to handle abour 230kw atw

R34 intercooler was cleaned using Petrol and poured out until no black residue came out.

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The R34 smic was taken to ReCustoms (Victoria) for installation of smic into my r32.

The R34 smic has a different outlet pipe (which makes it match up with r33 but not r32). Therefore another outlet pipe was welded on the other side to look similar to the stock r32 smic.

Although this still did not make it a direct bolt-on replacement and the pipes needed to be customized slightly. Also the r34 duct was unable to fit and has no air duct (which wouldnt make a larger difference in power really)

Ray from ReCustoms has kindly taken a few photos of the customization of the smic.

Located 2nd Page

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Dyno run was made before/after the smic installation;

Mods are;

apexi catback exhaust & apexi airpod.

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Thanks goes to Ray from ReCustoms for the installation and patience

Highly recommend him for any work on imports.

Cheers

- Patrick

[luke20t]

hmmm not bad, an extra 20 or so kw!

but after a few runs does the r34 cooler heat up like the r32 one?

[Rekin]

Quote from SydneyKid

The R34GTT intercooler was around 68% efficient for cooling at ~200 rwkw. That compares pretty favourably with a standard R32GTR intercooler on the same engine which was 72% efficient at similar power levels. At 200 rwkw and 7,250 rpm, the R34GTT intercooler (and pipework) had 1.5 psi restriction at 1.3 bar. The R32GTR intercooler, with larger pipework and similar power, was 0.75 psi. So even the airflow wasn't too bad.

[GreddyGo]

It will still be pretty prone to Heat Soke compared to a FMIC.

That's the only problem with an upgraded SMIC.

I lost 12kw over 3 runs due to heat soak, and I had a massive fan on full power during the run

-Josh

[Adriano]

Great results, it would be interesting to see how much of the power is due to the increased boost, i would guess 12-15kw

[BAMR33]

Intercooler spray would be a good idea for the r34 smic. Probably won't suffer from heat soak as much.

[Cubes]

I picked up 3rwkw back to back on the same (stock) boost level when I dropped my bar/plate spearco FMIC on mine years back.

[paulr33]

remapped ecu, the afrs are pretty good, too good for stock ecu

unsure if the comparison is still valid based on this fact

but it is still a valid before and after

i dont think a stock r32 would gain ~20rwkw with the core change

[WazR32GTSt]

nice result

i find it hard to imagine that one could gain such power, even with a FMIC, especially everywhere in the rev range not just up top

but you seem to have evidence there

[MANWHORE]

awesome result. the coolers are really good.

[dangerous_daveo]

Nice! I've just got one for the cef, pretty much the exact same mods (and I know I have a chiped ecu). Id be happy with half that! Thats tops news.

One question tho, how much boost are you running???

[Rekin]

What Ray at ReCustoms said, was that the r32 smic had smaller inlet/outlet holes which would have restricted air flow.

Also that the smic placed in was cleaned out whilst the 13yr old r32 smic would have been clogged up with crap.

Edit;

The car is running on stock boost, dont have any form of boost controller in car so its stock. Ray claimed that there was an increase of 0.5~ due to less restriction.

Stock r32 boost is edit:10psi as indicated in the first graph

[dangerous_daveo]

What Ray at ReCustoms said, was that the r32 smic had smaller inlet/outlet holes which would have restricted air flow.

Also that the smic placed in was cleaned out whilst the 13yr old r32 smic would have been clogged up with crap.

Edit;

The car is running on stock boost, dont have any form of boost controller in car so its stock. Ray claimed that there was an increase of 0.5~ due to less restriction.

Stock r32 boost is 12psi as indicated in the first graph

Haha, thought it was on there somewhere. Thanks tho dude. Thats seriously exactly the same as my car.

[R34NRG]

damn man it gave u that much of a increase.......dats crazi....glad to help mate

[ellie]

heat soak is an issue on a side mount which is why the air guide into the cooler is very important because it rams air through it instead of it taking the easy path around it.

Interestingly it pays to have a slightly smaller inlet to the guide than the face of the core to force more air through it.

It's a good comparison but the average punter shouldn't get carried away with this result as a remapped ecu makes a massive difference. Not just because of the fuel mapping but also the ignition mapping which is what goes a long way towards the quicker boost build and top end power clearly seen on these dyno sheets.

Great effort for your car and something well worth thinking about if your not cahasing big horsepower.

congrats. Must be much better seat of you pants acceleration with such a large jump in power

[FATGTS-R]

Amazing result. As others have mentioned its astonishing that not only did it gain ~20rwkw at the top end but its ahead on power over the 32 item right from the basement.

Also, either you typed the dimentions incorrect or you calculated incorrectly as going from the dimentions you posted the 34 item is actually 3608 cubic cms having a larger area of 1271 cubic cms meaning it comes in at over 50% larger in cubic area.

Over 50% greater area is a nice upgrade in anyones language.

[Rekin]

Amazing result. As others have mentioned its astonishing that not only did it gain ~20rwkw at the top end but its ahead on power over the 32 item right from the basement.

Also, either you typed the dimentions incorrect or you calculated incorrectly as going from the dimentions you posted the 34 item is actually 3608 cubic cms having a larger area of 1271 cubic cms meaning it comes in at over 50% larger in cubic area.

Over 50% greater area is a nice upgrade in anyones language.

ah crud cheers for that.

Didnt double check the data, will fix now

Thanks to anDru for supplying me with the smic

Took car for a proper drive today (sau cruise) noticed missfires above 3000rpm which occasionally happened before smic upgrade. Mechanic has checked coilpacks several times and indicates they are fine..Could it be linked somehow to the upgraded smic? Will take car for a drive tomorrow and see if the issue is still there...

Cheers

[eMsta]

hmmm - good increase patrick...might look at doing that for my car i think....pics would be good when you can get them

[xRHETTx]

Did RE customs modify the outlet pipe for you? Ive got a r34 sidemount sitting in my bedroom waiting to be modified, the last place i went to get a quote wanted $120 just for moving the outlet to the other side..

If you dont mind me asking what did you pay for the modification and install? Was going to do it myself but there are a lot of things I was going to do myself and have never got around to doing...

[Rekin]

Did RE customs modify the outlet pipe for you? Ive got a r34 sidemount sitting in my bedroom waiting to be modified, the last place i went to get a quote wanted $120 just for moving the outlet to the other side..

If you dont mind me asking what did you pay for the modification and install? Was going to do it myself but there are a lot of things I was going to do myself and have never got around to doing...

Re Customs did all the work, including cutting/welding the outlet pipe + customizing the piping to fit the cooler in. I basically just gave Ray the r34 smic and he did his magic

As this was his first time, he may have been unsure how much time/cost it will take in order to fit it. Might be best to give him a call and ask for a quote although i assume the cost will be around the $150-$250 total depending how many dyno runs etc etc.