Jump to content
SAU Community

Recommended Posts

  • 8 months later...

Finally got around to test 76mm Plazmaman against factory R32 intercooler, which is still a very decent unit given its age, the measured delta between inlet and outlet under load was close to 60°F / 15.5°C.  Forgot to take delta measurement after Plazmaman was installed though...

f2lVj55.jpg

GmbC1Dk.jpg

I think my tuner may have found factory intercooler's limit.  With -9s the most my tuner could get was 440rwhp / 328rwkw at ~18 psi.  Without touching the tune or changing anything except installing Plazmaman, it gained 10rwhp. 

hrqbXBz.jpg

Playing with the tune a little more, it gained another 1psi and pushed to 466.5rwhp / 348rwkw.  At this point my R35 570cc injectors maxed out, exactly as I planned.  The R35 MAFs were a surprise, I thought they would maxed out as well since I only put them in factory sized 65mm tubes, but they were at 4.6v and still got room to go.  So folks, there you go.

Fpf6FnK.jpg

  • Like 3
On 3/29/2019 at 10:56 PM, TXSquirrel said:

the measured delta between inlet and outlet under load was close to 60°F / 15.5°C.

Just realize I was thinking ambient temperature.  60°F delta should be ~33°C...

On 5/2/2018 at 2:06 AM, TXSquirrel said:

So given the older protruding tube design, Plazmaman still seems to do well?

Many coolers that come out of Plazaman use Chinese cores with locally made end tanks slapped on... 

4 hours ago, jmknights93 said:

Many coolers that come out of Plazaman use Chinese cores with locally made end tanks slapped on... 

Not the Comp and Pro Series.

Their budget kits are though.

  • Like 3
Just realize I was thinking ambient temperature.  60°F delta should be ~33°C...



Great to see an update and a lad following through.
Thanks for the data mate, good results that clearly speak for themselves.

Plazmaman certainly has been getting my vote for bang4buck applications and recommendations.
On 4/4/2019 at 6:46 PM, LaurelPWR said:

Great to see an update and a lad following through.
Thanks for the data mate, good results that clearly speak for themselves.

Plazmaman certainly has been getting my vote for bang4buck applications and recommendations.

 

 

Credit to my tuner for sure.  I told him I didn't know if this Plazmaman would improve anything for my low power goal, he said just pay for the intercooler installation and a re-tune, and he would give me free before and after pulls.

It was interesting to find out he couldn't push any further than ~18.5psi on factory intercooler.  Also interesting to see the thicker Plazmaman gained across RPM range, "sort of" debunked the myth that bigger intercoolers would get more pressure drop and hence feel laggy.  I say sort of because Plazmaman isn't that much bigger than factory.

One last note is that I'm using the somewhat idiotic Greddy Profec, and to get that last tune to hold the -9s at ~19.5psi, my tuner had to turn the Gain way up.  He also pulled to only about 7000rpm at my request, because I'm still on near 30 years old head gasket and head bolts.  He noted since the curve was still trending up, likely there was more power to gain up to 8000rpm.

  • Like 1
Credit to my tuner for sure.  I told him I didn't know if this Plazmaman would improve anything for my low power goal, he said just pay for the intercooler installation and a re-tune, and he would give me free before and after pulls.
It was interesting to find out he couldn't push any further than ~18.5psi on factory intercooler.  Also interesting to see the thicker Plazmaman gained across RPM range, "sort of" debunked the myth that bigger intercoolers would get more pressure drop and hence feel laggy.  I say sort of because Plazmaman isn't that much bigger than factory.
One last note is that I'm using the somewhat idiotic Greddy Profec, and to get that last tune to hold the -9s at ~19.5psi, my tuner had to turn the Gain way up.  He also pulled to only about 7000rpm at my request, because I'm still on near 30 years old head gasket and head bolts.  He noted since the curve was still trending up, likely there was more power to gain up to 8000rpm.


The myth that bigger equals more lag or loss of some sort is exactly that, a myth and there’s too many factors that could be causing any number of negative drop in performance of one sort or another in any given setup....

Gains throughout the rpm range have been proven over and over again by Tao from hypergear, who, as we should all know, almost always aims for peak response....he recommends 100mm at a minimum and/or top brand name coolers in bigger sizes nearly 100% of the time he speaks of cores.
Near 700kw at wheels with my Gtr with 100mm plazmaman cooler, 



I’m looking at getting a new intercooler and stuck between the 76mm & 100mm plazamaman. I’m only aiming for 750-800+hp? I thought I would go 100mm just so I didn’t have to change if I decided to change the hot side



I’m looking at getting a new intercooler and stuck between the 76mm & 100mm plazamaman. I’m only aiming for 750-800+hp? I thought I would go 100mm just so I didn’t have to change if I decided to change the hot side


You answered your own question my dude [emoji1365]
If cost is no issue, go the bigger and best then set and forget.
20 hours ago, r32-25t said:

I hope the 76mm can handle around that power cause I don’t want to lose the mesh 

If your IATs are low enough, then don't worry too much.

If you need more cooling, you could chemically intercool your system by introducing water/meth when your IAT threshold is met.

I personally would just go 100mm.

8 minutes ago, sneakey pete said:

Is there going to be pressure/flow loss issues before you hit temp issues, particularly for short stabs?

Highly doubt it for a streeter, you'll run out of road before anything else.

About factory GTR intercoolers. My 1998 S3 R33 GTR with factory cooler, boost curve:

boost.jpg

 

Cooler changed to Takashi (not the best) 600x300x100mm with no other changes:

boost.jpg

 

Compare the two coolers:

coolercompare.jpg

inside new cooler:

insidenewcooler.jpg

inside stock cooler:

insidestockcooler.jpg

 

I'm unsure of other GTR models, at least factory R33 S3 GTR front mount cooler is quite restrictive. 

 

Edited by hypergear

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • My dream is also to have a proper hoist, but I don't think it will ever happen. My quickjack is probably as close as I'll ever get, it really is very good though. 
    • Yeah we keep on in the dailies, it is pretty poor how many animals get hit and the driver leaves without checking....have saved a couple of little ones over the years. Bit of a gruesome job though, pouches generally need to be cut open because they are so tight and often the joey doesn't realise mum is gone so they are still locked onto the teat. I checked the modules in front of the DS wheel where an oil cooler should go.... There is the radar unit - that can go for race use) One of the 2 HX water pumps, the silver cylinder. That needs to be kept but might be able to be relocated But the bad news, the big computer mounted vertically in front of the wheel (blocking any potential air exit) is the electric steering computer. That is required until/unless i do a hydraulic steering conversion, and in CAD based modern car design it is not like I can just pop a big unit like that somewhere else (plus the loom would be too short anywhere else too). So, the passenger side is OK to clear out (just use a smaller washer reservoir, potentially elsewhere), but the DS no beuno
    • Well, all the best with the new camry It was interesting to hear about the UK process, it is generally a lot more streamlined here with a shipping agent looking after all the import side (noting the exact final price can still be a surprise.....) and I've used a few different brokers on the japan (or US) side, and never had any trouble with any of them....luck of the draw I guess. You mentioned you didn't get the auction sheet (understandable since you bought it from a dealer, not auction), but I always try and get hold of that because they are pretty thorough. I've imported 2x R grade vehicles over the years and both were fine, repairs in Japan are pretty thorough compared to here in Oz.
    • BTW I measured the jack I have, it is 70mm at the saddle but you only have about 700 until it returns to 150mm high at the cylinder so it is good but no magic bullet.
    • My experience with Rising Sun Exports Before agreeing to the sale I tried to do as much research as I could (obviously), his Facebook reviews are 98% and he goes Live at least once or twice a week. I contacted 2 people in the UK who had used him for their imports, both had positive feedback. His explanation and talk through of the import process was thorough, answering any query no matter how stupid it was. It felt as soon as the money was sent, communication dropped off. I asked for shipping updates every 2 weeks or so, not wanting to pester him, he never had any updates. I wasn't informed the car had been dropped off at the port, I only found out by his Facebook story. I asked for the photos taken at the port, knowing he would need some for insurance purposes. I received a few 5 second clips and that's it. When asked again, he said his staff had them. Weeks later I asked again, he tells me he doesn't have any, but does have 50 photos from the original advert. I never received them. I eventually got the documents sent via WhatsApp after I mentioned the port was requesting them. I purchased a CarVX report, to find out the vehicle is a Grade R with recorded accident damage, first recorded in 2017 when it was first auctioned. He never told me the grade, then again I didn't ask. His response was "Grade R means nothing, it wasn't chassis damage". Still, I would have liked to have been informed about it. Jon prides himself on being open and honest when it comes to inspecting cars, it's his main job doing so at the auctions for customers. When the vehicle arrived in the UK I noticed a few little cosmetic issues. It's a 21 year old car so it wasn't going to be mint condition. The side skirts are cracked on each corner and the sealant is failing. The front grill on the bonnet/hood isn't secured very well, mounting studs are missing. Both minor things, but again, it would have been nice to be told. During a Facebook Live walk around video of the vehicle, he mentioned it has a front Whiteline anti roll bar/sway bar. While on the inspection ramp, I noticed the stock item has been installed. When first questioned, his response was "the ARB? Switched? Since when, it never had them". Since sending video and photo evidence I've not received a response. I'm probably being over critical of the overall condition of an old car, but all I wanted was honesty (which he claims to have). I'm aware I wasn't his only customer, he's busy doing XYZ but other reviews praise him for great communication with regular updates and photos, I felt I didn't receive the same treatment. 
×
×
  • Create New...