hey guys, just wanted your opinion on what to use if i was aiming for some serious horsepower in the future,what would be the best set up? and when i say serious i mean in the realms of 600-700bhp!! have heard lots of different things but still confused....:2Rolleyes
have a serious thought about what u want to use the car for
road/track use the v mount but 6-700 hp is a tall order and will require shedloads of mods ad all set ups have their pros and cons
huge v mount and water inj wld be my choice and i have had fmic/charge cooler and now have v mount
im aware of the masses of mods needed to make that kind of power and this is a longterm project for me! what v-mount set up do you have and how much did it cost? price is the only thing that really scares me when it comes to v-mounts...
If you think the price of a v-mount is scary, then you really need to have a hard think about getting that power figure!
Fish
starting from scratch then 10grand of ur hard earned is going to dissappear nearly as fast as the car
lol i, only scared if its not worth the money!! im well aware of the kinda prices involved but i opened this thread mainly to get down to the bottom of which one is better.....
I\'d say for track and fast road a large Front Mount would suit you fine (one for sale on FDUK as we speak IIrc, one of the best ones there is too !!) , if you want to track it though you\'ll need a *serious* V mount for those numbers.
To get those sort of figures wouldn\'t a charge cooler be better/more reliable?
ive been hearing alot about charge coolers,um what are they???......
Hello Daz
Think of it like a fridge
Electrically cooled air, or water cooled, I\'m not all that sure actually. doh
dont bother with charge cooler they need bigger pumps/ast tank a good reservoir and just dont cut it..only any good for drag when u can also use ice reservoir
lol,ok so from that im assuming charge coolers arent very helpful when it comes to a good track/street car and they just clog up the engine bay,so if were to reach the power i was thinking about in the future,is the general consensus that id need the v-mount??
TAZ!
We have these V mounts, and it was good enough for the fastest RX7 in the UK, was over 1000bhp
http://www.rotaryart.uk.com/acatalog/Dragon_Performance_cooling_systems.html
Assuming u r talking about Ross? he ran a modified Greddy frount mount on the drag car, didnt he?
I\'ll double check with him, would have thought he\'d use his own V mount
Quote from: rx7veilsidedont bother with charge cooler they need bigger pumps/ast tank a good reservoir and just dont cut it..only any good for drag when u can also use ice reservoir
As has been stated before [on other threads] charge coolers work and dont impede the water cooling, they work very well if plumbed in correctly I know of a few of 500+hp UK cars running this setup.
Biggest problem with high power rotaries is the heat generated and getting rid of it, front mounts when you get to this level dont cut it, great for shows and short bursts but long term they reduce air flow to the water rad - not good news.
600 -700 hp is a big ask from a 1.3;) you get to 600 no probs with the right set up, 700\'s - new ground in this country - away from the drag strip that is.
V mounts are the new \'black\' if you know what I mean and they work very well again if set up correctly;) At this level you will need WI or face running race fuel all the time.
Have a look at the PWR setup by far the best one around [V mount] at the moment available from Reworx in this country or as an import from Aus. I have this setup atm and running just shy of the magic 600....not for long though.:cool
well we all know who set my charge cooler up:(
off boost cool morning best temp was 45deg on boost with water injection still no lower that 45deg and after sitting wld be more like 45-50 on cruise
that sounds impressive john! well my rx7 will be hoping to reach that kind of power soon,what turbo are you running? did reworx fit your v-mount?
Quote from: darko32that sounds impressive john! well my rx7 will be hoping to reach that kind of power soon,what turbo are you running? did reworx fit your v-mount?
A t51bb is the turbo, REworx Im sure would be happy to do the install, but, if you are comfortable with spanners its a job you can do yourself;)
i would have thought a front mount would have the benefit of better air flow to the cooler?
does the v mount have ducting to the underside of the cooler ?
could someone explain how a v mount benefits over a front mount as i am current restarting my build for a similar power figure.
thankyou
Ok
Imagine you have your head out of car wind in your hair, can just remember that, big grin on ya chops, you can feel the wind cold on your teeth, but your tonsols behind are warm, thats your front mount.
Now open your mouth and the air rushes in roof of mouth and tongue feel cold, thats your V mount.
DR G
A V mount is your intercooler at top and rad at botton in a V shape, so wind through mouth of car gets to flow through both.
With the front mount, the intercooler in front gets all the cold air, but the rad behind it dose not benifit and so runs at a higher temp
Gary you are a genius that was the best explanation ive ever heard :D
Quote from: rotaryart.uk.comOk
Imagine you have your head out of car wind in your hair, can just remember that
DR G
like when its frosty and i cant be bothered defrosting my windscreen in the morning lol
cheers for the explanations guys. it makes sense to me now. v mount it is
Something lighthearted for a monday morning
I\'ll second the explanation...brilliant Gary !!!!!!
The only thing that should also be taken into consideration, is the veins on both the radiator and intercooler *can* different sizes. Air will always take the path of least resistance.
Fish
I have the dragon/radtec v-mount setup, and am finding it pretty good. In recent weeks, had intake at 25 degress (Friday night going down to dorset) - 28 degrees average coming back from dorset to bristol. Rad temps were 82 all the way, unless i stopped in ttraffic where they would start to come up, but would come back down again once moving.
I have found that it does require a bit of speed to be effective. 35mph+ starts to make a difference on the rad, but needs to be doing that for a little bit for it to \'take notice\'. Overall, seems pretty good.
Oh, and these temps are with an air filter mounted within the engine bay, but with a vented bonnet.
Surely it is best to have a vented bonnet for a V mount to work effeciently!
Would like to know.
cheers Bob
Quote from: ro284Surely it is best to have a vented bonnet for a V mount to work effeciently!
Would like to know.
cheers Bob
Where do you think the air goes now? surely if you fitted a vented bonnet your current setup would be more efficient?
Having run a vented bonnet with my current setup[V mount] and then changed back to a standard I have noticed little or no difference, mind you we have not got to summer yet.
I didn\'t notice a massive difference either. but it does cool down a lot quicker, and it can\'t do any harm.
If you look at the RE-Amemiya touge monster and if I look at my Revolution Vmount kit, they both use both the vented bonnet from RE-A and Revolution says you should cut your undersweep to aid air from the rad.
RE-Amemiya uses their carbon undersweep for the front bumper.
Can\'t say how much difference it makes, but I will report my temps when I come back from Japan and install everything. :P
All I know is running with or without a vented bonnet with my setup on the road [not done any track / drag so far this year] I see 80 -85 water temps and the worst inlet temp so far has been about 25, I can see the point of using one for track work, otherwise its for show:Thumbs-up