sonnguyenrx7

you guys should check out the rotaryextreme v mount.I used to have a large m2 ic but when is the outside temperature is 85f my power fc commader shows 45c.i talked to Chuck from rotaryextreme and he recommend the v mound ic and he said it should cool better than m2 large ic because there is more air flow through ic so i gave the v mount a try and after that my power fc shows 35c. I am really happy with the v mount ic so i think you guys should check it out.

jpandes

Hmm, that's very interesting. Too bad I don't have the funds right now to upgrade my Large SMIC.

rynberg

Um...it hasn't been 85F outside in about 2 months, so how is that an apples to apples comparison. Also, is that temp from city driving, highway driving, temps after a few hard boost runs or what? Also, what are your water temps before and after?

Hell, the other day, I was running about 28-29C on intake temps, which only rose a few degrees after a few hard 3rd and 4th gear charges on the highway....with my smallish PFS SMIC.

Not to dis on the V-mount system in anyway, but you have to provide better data than that to convince anyone.

rotaryextreme

iTrader: (2)

He installed the vmount about 3 months ago. The comparision was done right after the swap so the ambient temp is the same. Before, he had the stock radiator and the water temp was about 92-95C cruising on the freeway on a 85F day. After the vmount install, water temp never goes more than 84C curising on the free way on a 85F day. When he punches it, the water temp went up to 87C on a 85F day.

If you want to compare your intake temp with his, it will not be an accurate comparison. You need to know all 3 factors: ambient temp, turbo outlet temp and temp after the intercooler to calculate the intercooler efficiency if you want to compare from car to car. But if it's on the same car with the same setup and same ambient temp, the set up that has lower intercooler outlet temp will be the more efficient setup.

I am pretty sure Sonny will be more than happy to give you a ride in his car. You can go to his restaurant to eat first before you go for a ride. Didn't Tom give you one?

Sonny, John, William from C2, you and I are all pretty local to each other. Maybe we can find a day to go driving together? We still need to find one guy with a front mount IC so we can test them out all at the same time.

Sonny: rotary extreme regular v mount
John: M2 large
William: M2 large
you: PFS
me: rotary extreme monster v mount

It should be pretty fun and informative.

Chuck Huang

reza

Dude....don't you want to include me with the stock IC ???

rotaryextreme

iTrader: (2)

Sure, you can come too. Everyone is welcome. Maybe we can turn this into a dyno day, yeah?

While we are at it, I can test out everyone's motor with the digital compression tester I have.

Chuck Huang

vspecpgt

damn i wish i lived over there... i have the monster vmount too (ahem, first one cause i'm cool like that) and my temps are very very cool... many times on cool nights my water temps don't even get above 80... and if they do they don't rise above 82 (when my fans first come on) my intake temps on a cool night here in central florida (say 60F) will be right around 20 something... the vmount is the bomb....i'm constantly getting temps that are much lower than in my friends car, and he has the apexi fmic

harrison

vspecpgt

oh by the way, those temps are with a stock hood.... just wait till i get a vented hood on.... hooo ya!

rotaryextreme

iTrader: (2)

Did you get paid by EDI?

Chuck

Scrub

iTrader: (25)

My water temps don't go past 67 degrees celcious when cruising on the Highway, and don't go past 82 when in the city driving. I guess it doesn't help that it's winter and I don't have a thermostat in This is a very nice setup though. I still love mine.

rotaryextreme

iTrader: (2)

62C is too cold. You need to put back your thermostat!

Chuck

ZeroBanger

I heard from a very reliable source that while the V Mount is great for intake temps, the air is not forced through the radiator core so the water temps are higher than normal.

vspecpgt

zero banger... you heard wrong...

chuck, i called them last week, supposedly i should get it this week, it might be in the mail box when i get home... as soon as i get it i'll shoot you an email.....

rotaryextreme

iTrader: (2)

I think you heard it from Rick. Some how he is mistaken for whatever reason.

Talk to the users. Tom and Frankie whose car was at Rick's shop 2-3 months ago both have the V mount and love it.

Chuck Huang

rotaryextreme

iTrader: (2)

No problem. In the mean time, I will get a CF one ready for you. Just sold out the last one 3-4 days ago.

Chuck Huang

ZeroBanger

Um, Pretty interesting, but it wasn't Rick. Anyway, lets get back to the topic, I would love to see what the radiator temps are on a hot day.

Im not bashing your product, but I can see the angle of the radiator and it does appear that the air is forced through the core of the intercooler and not the radiator. I'll have to take a closer look at one next time.

rotaryextreme

iTrader: (2)

I read your other post on another thread before and you said Rick told you that V mount raditor causes higher water temp. Tom posted on the same thread saying it was not true and Rick had no basis of saying so. I don't think I remember wrong. I can find that thread if you want me to.

On a hot 95-100F day, my water temp never goes above 84C while cruising. It will go up to about 88C when I punch it. All the radiators are the same for either the regular one or the monster one. My set up is probably more effiecient since I don't have A/C.

I just don't understand why do you need to think about if it works when it's already working?

Chuck Huang

ZeroBanger

Can you please show me that thread, thanks. The only one I can find was this one, which I complimented the V-mount saying how nice it is. I'm still looking, thanks.


https://www.rx7club.com/showthread.p...5&pagenumber=1

Kento

Elaborate on this, please.

rotaryextreme

iTrader: (2)

The thread I was referring to is this one:

https://www.rx7club.com/showthread.p...hreadid=221490

and it wasn't said by you. It was someone else. My mistake and I apologize. Sorry about it. I guess I need to have my brain checked for loss of memory.

Chuck Huang

ZeroBanger

Its ok. I still think the V-mount is nice.

rotaryextreme

iTrader: (2)

I still wonder who that reliable source is. If it's someone who uses it and based on his experience, then I have nothing to say. If it's a competitor or someone who never uses it and just by his own theory, then you probably should disregard that comment.

If you look at the stock radiator, it's sitting at an angle. V mount radiator is sitting at an angle as well but the ducts on the side actually prevent more air loss than the stock position.

There is one more guy Cossie on the forum that runs a HKS v mount and he brought it to the track for testing. He is using the Koyo radiator with it. The HKS setup sits the radiator even flatter but he had no overheating problem on the track.

Again, I am sorry about my mistake. Since you are Rick's customer too so that links me to think it was you who made the comment.

Chuck Huang

Scrub

iTrader: (25)

You sould make a shroud that sits over the mounting point for the IC and goes across. Someone mad a carbon fiber one a while ago.....don't remember who though.

rotaryextreme

iTrader: (2)

Why do you need it when you have the shields sitting below the bracket already? Mainly for looks?

Chuck

Scrub

iTrader: (25)

yeah for looks....just to cover up the mounting point to give it a cleaner look. I've been wanting to do this just don't have the tools for it.