Craig H

Seemed to bend at an indicated 160+. Had an indicated 160 at the revs day without, it was fine - on the continent at slightly higher, thought it was gonna come up

RobJenks

Sam,
Yes finally reinstalled the controller and still requires some fine tuning.
Have noticed some improvement certainly , but getting through buckets of water!
The nozzles I installed were the ones recommended in the original article , so they are quite substantial.
Positioning them with the splitter in place does not leave you with too many options.
I have elected for one nozzle located on the the sloping face of the splitter-such that the back portion of the I/C is sprayed.
The other nozzle is located under the splitter-thus serving the front portion of the I/C.
Both nozzles are obviously on one side of the I/C so the angle at which the spray originates is critical - thus ensuring an even distribution of water.
Hope that does not sound too confusing!

BladeRnnr

HI ALL,

If yu want to use waterspray with a splitter you will need to get additional spray jets and 't' piece them off the existing system to enable the water to reach both parts of the 'now disected' Intercooler.

Rich S........doesnt sound like bolx to me.
For any doubting tomas's here is what is said on the web page by the guy who did the testing.......
So, from these figures it can be seen that first of all the standard intercooler works pretty well by itself! Secondly that with the addition of a air splitter and water spray we can improve things quite nicely, and certainly cheaper than a new larger intercooler.

I think it is better never to talk in negative terms about someones products less they talk badly about you.

plus just to put the knife in.....

from steve chappell via e-mail

would be happy to endorse the splitter/talk to potential customers and can advise
the following for you to quote:-
"On the M606 (steeper uphill stretch) I timed the car before & after between *0 and *0 mph
(hello officer!). There was around a 1second improvement in 5th gear (timed manually on a
hand-held stopwatch)."

m.

[This message has been edited by BladeRnnr (edited 04 October 2000).]

Chris L

Another vote for Mike's (BladeRnr) splitter. Fitted one yesterday and there is a noticeable improvement above 4000RPM - car pulls very strongly.

I would agree with Neil, it is a little like driving the car on a cold morning. For £25 it represents a very cost effective improvement.

Chris

Sith

Chris,

It *was* bloody cold yesterday morning. Two fabulous cold days and I'm on the train. Now with a cold of my own .

Not doubting the splitter though.

P.

Chris L

True Sith, although this was testeed yesterday afternoon which was bright and sunny around my way - certainly considerably warmer than a 'normal' cold morning.

Chris

IWatkins

This is all very interesting.

Those who have bought one all report that they "feel" an improvement. And for the money, that is very good value.

However, I would be worried if the bonnet tends to lift at speed. To me this would indicate that the complex airflow through the engine bay has been disrupted.

Whether this is a good thing or not I couldn't say. You would really need to wind tunnel the engine bay under different windspeeds to see.

On the ST185 GT4, which also has a bonnet scoop, fitting a splitter also seemed to have a good effect on the air charge temps. However, the bonnet also lifted at speed (and this is a heavy bonnet) and caused the car to overheat because the air that was supposed to flow through the front radiator was backed up and couldn't flow properly. Something to do with the air oming in the scoop was causing high pressure just in front of the IC under the bonnet.

In fact, so bad that when rallying, TTE gave up on a bonnet scoop altogether and went with a chargecooler setup

I'm not saying that this is happening on the Scooby because the engine layout is different but is something to think about guys....

Don't get me wrong, it does sound like a top idea. The basis being for a set weight of air coming in, you want it to remove heat from the whole intercooler core rather than just the back half.

And I also applaud anyone who trys these things out using their own time and money. But you do have to think carefully about how other things are effected by what you do. And to be honest, that is half the fun of it. I will often be found in the garage tinkering with various bits and bobs

Cheers

Ian

Tim W

iTrader: (1)

Why did I do it...can I appologise to the sane people of the forum

If you really want to build one check out my drawing on Steve Breen's site:

sunilp

Forgive me as i have never done aerodynamics or any other aspect of physics to any level but i would just like to propose the following points for comment ;

As far as i can see (in my capacity as a layman), the intecooler splitter i have (thanks Blade Runner) merely resembles a smaller version of the Impreza bonnet scoop.
Therefore, by entirelt discounting the value of the splitter, does this imply that the factory fitted, tried and extensively tested bonnet scoop design is similarly of no worth?

I also dont think its entirely fair to compare water spray to a splitter although they aim to acheive the same end (lowr intake temp?) at the same point of entry, they do it in two completely different ways.

I have no regrets with the beer money i paid for my splitter from Blade Runner and i dont know any one else that has either. If i want a proper waterspray kit, it will cost me 10 times the cost of the splitter BEFORE the fitting charges (some of us cant fit anything , let alone make it ourselves unfortunately!)

Comments please?

Sunil

PS - i would never want a home made water spray kit, or anything else for that matter - only a pucker one so that influences my relative cost comparions.

[This message has been edited by sunilp (edited 08 October 2000).]

Alberick

Well,

I think that's why I recommend everybody to spend some more money and use the 'Zerosports' Splitter instead of some self-made. I don't have any problems with bonnet lifting or whatsoever.

Al

Muppet Maker

Of course there's no bonnet lift!


[This message has been edited by Muppet Maker (edited 08 October 2000).]

ptholt

hmmm my bonnet on the sti lifts above 100mph anyway, and it hasnt got any worse by fitting the scoop from bladerunner.

Though in all honesty i havent noticed any differences since fitting it, but i liked it and it was only loose change after all.

STEVECHAPS

Hi all,
Just to confirm that the quote attributed
to me is correct, the difference was
measurable in the circumstance mentioned.
For the money involved and ease of fitment/
removal why not try one!?(no i'm not on
commission either before u ask)
As suggested on another thread many mods
cost the earth & do little so if a splitter
costs little & does a bit then it must be
worthwile

Michael, if you're putting waterspray on
then you could always utilise the hosing
at your place of employment

As a matter of interest, does the increase
in power from the waterspray offset the weight of carrying round all that
water???

Cheers
Stevec

Stef

Finally, some posts that covered my concerns.
I had heard about the bonnet-lifting but not from anyone that had directly used a splitter. Does anyone know the exact implications of this reaction, or is it considerd 'allowable' movement? I know the cars with ally bonnets already suffer this to some extent.

Stef.

Neil F

I have just fitted mine this weekend and the initial impressions are, while not devastating, good. I'm sure that there is more urge earlier on, which is where an STi needs it, and this seems to carry on through the range.
However, I like Paulie suspect that some of the improvements may be from the availability of SUL again and also the slightly cooler weather of late?
Regardless of this, the theory is sound (Stef; regardless of the volume of air, which would vary depending on speed, if it only passes through half of the matrix you effectively have a "small matrix" as opposed to the full(er) one available with the splitter in place), the price is cheap and I'm still convinced that the car responds a little better, a little earlier than it ever did, and I generally try to be realistic when reviewing these mods.

Neil.

[This message has been edited by Neil F (edited 09 October 2000).]

sunilp

The crappy UK cars have a heavier bonnet anyhow so are they less likely to lift than the sooper dooper Jap cars?.

What is the disadv of the bonnet lifting at speed on the scooby anyhow, does it affect the airflow into the i/c or rad or whatever?...surely if it lifts, more air can get in?

What about when the whole front of the car lifts due to soft suspension and all the air goes under the car....is that bad?

Novice of Croydon