Can anyone explain why some front mounts are rated to hp and lb/min, for example to aps systems have a 525 and 725 out, the cores are bigger but the pipework is the same size and diameter, would using a bigger intercooler be detrimental?

 

Bez, two things to think about.
As well as a bigger scoop the under bonnet tray has to match the Hyperflow TMIC and if you can put skirts on the side so it is harder for the air to go anywhere except through the TMIC core, that greatly improves TMIC performance.
All that said, the TMIC is still a compromise and a long second choice on anything I do.
Second, The inner wing CAK will start to become restrictive at some point subject to the size of air filter in use. Get the biggest surface area filter you can, not sponge or metal gause and accept that somewhere well before 400 bhp you have a gradual restriction inless you come up with some way of adding a really big filter.

 

I also am a plumber, and have thought about using the stuff, but on the tin it does say "Flammable" "Keep away from hot surfaces" but I might give it a go.

Bez

 

Yes Harvey, there are skirts on the side, with rubber bases that but up to the intercooler, on the inner wing, there is plenty of room for a large air filter, it is a good size on there,
I know I am at the limit of the topmount, and I am monitoring charge temps, but still getting feed back.

Going back to the original question from Stevep360


From Bez300. 400bhp is definitely manageable with a top mount.
From Grant74. Heat soak is an issue and front mount is safer,
From EngineMapper.Most of the lag can be mapped out.
From Harvey. A top mount may have an application on a quarter mile car but it may preclude the car from top speed runs or normal hard road use.

 

Last year i did some tests with the waterspray on a tmic just for fun.

On the motorway post intercooler temps were about 2 C above ambient.
After running the water spray you could get to about 3C less than ambient. A small gain.

Running a md series turbo

After the run at 1.6 bar output temps were 7C above ambient with the waterspray on. Thats versus 11.5 C above ambient without waterspray.

 

Graham, this would be a good one to test on your other thread. Does drawing air through an under bonnet filter really have impact on ACT by the time its gone through a more efficient FMIC?

I think the FMIC was one of the best overall mods I've done on my car, zero heatsoak and far less worry about ACT's in the summer months.

Anders

 

The waterspray could reduce ACT'S to just below ambient whilst cruising around. If the ACT'S were at +11.5c ambient @ 1.6 bar and switching the waterspray on brought the ACT's back 4.5 deg's on the same run then that would have been impressive but contrary to most. I would have thought under hard accelleration the water would be blown through too quickly to have any significant benifit.
Wether a modified nozzle arrangment which sprayed the water up into the airflow rather than directly down onto the intercooler would reduce the blowthrough and make the spray more effective under boost?
Trev

 

Leo: I accept the water spray on a TMIC can make a small difference but it is intended to get rid of heat soak when the ACTs are very high compared to ambient. If you try to run water spray all the time when you are giving it the beans you will run out of water very quickly. It is actually the evaporation of the water spray that removes the latent heat/energy.

 

Harvey I'm going with one of your front mounts, do the pipes come coloured ie powdercoated?

 

Well it looks like the thread was of use and helped you make your mind up,

I am going to the ring in 4 weeks, I might be too looking at a FMIC depending on how the car runs.

Bez

 

Yes the difference is small. Might be also usefull on hill climbs as well tho.

I note back in the turbo F1 days - the teams used lots of waterspray on qualifying runs. Untill like all good ideas in F1 it was banned !

 

Nothing wrong with a waterspray, especially for relatively short bursts or trackdays, it just becomes a pain if needed constantly...

I have a 1970's turbo book from the USofA and they were more than happy to add huge tanks to RV's and pick-ups.

dunx

 

found the info i need

https://www.scoobynet.com/722087-hyb...ic-kits-2.html


be in touch soon, might even have a chat with you at NBO

 

Hi fella, I have an 06 spec c running a LM420 turbo which is similar to the RCM420 you are considering, ran my car with TMIC and eventually swapped to a Perrin FMIC, the difference in power is HUGE and I cant feel any difference in lag, if you can afford a decent fmic defo go for it

Lee.

 

Thanks dude, who mapped it?

 

Both with TMIC & FMIC it was Richard Bulmer at Tracktive Solutions, he stated there would be very little difference in lag because the spool up time of the turbo is possibly the limiting factor? I have no dyno sheet of before and after but can only say "it feels no laggier and it feels a lot faster" I only got a FMIC for track work so was really happy when I discovered the performance gain, apparently due to "advancing the ignition" I aint no expert but its great

 

The powder coaters can give us almost any colour. It adds about four working days to the delivery time which is normally despatch next day from receipt of payment.
Just get in touch when you want.