Something that has been going through my mind lately is 'why do a lot of zeds die on rolling roads?'. Airflow is a major factor for keeping the car operating within its temperature limits. Typically a RR will have a huge fan that is placed in front of the engine bay and this blows nice cool air over the engine and radiator. Now, think of a Zeds IC setup - they are in a PISS POOR position for receiving airflow anyway, nevermind if there isn't anything blowing at them ;) Stock intercoolers will heat soak very quickly if the engine is under load with no flow. So then you get detonation and before you know it BANG....

 

Anyone else any thoughts/ideas??? RRs are almost essential for propper tuning of a car - if we can't use them it only leaves us with 'on-road' tuning which isn't exactly as easy or accurate - RRs allow you to hold the engine at a certain rpm while changing the load etc....

 

CheerZ,

 

Andy

LMAO Answer = FRONT MOUNT INTERCOOLER :D:D

 

Well it depends alot on the people who do it.

Domingoes who did ours , ran how many cars that day, and had no problems , some doing numerous runs.

 

Stock intercoolers heat soak at around 370 BHP and will do so in three runs, like you wont believe.

 

But get adequate cooling or your looking for trouble.

Big problem in this country is , who do you trust with a dyno, that can give proper results and know what they are doing.

When i dyno car again, it will be at ABBY Motorsport and no where else. They are horrible expensive though :(

Hot ice is a favorite aswell , leave shit loads in front of each intercooler..

Im going to use Abbey so if it all blows up you can all have a laugh! But Im not going the same time as Warren just to be safe!!!

Is the air flow from the fans equivalent to the air which normally hits the front of the car ?

Depends how fast you are going though. But the fan is usually a a really big bugger. The problem is its 1 big fan placed at the front of the car, but the intercoolers are on the front corners when not so much reaches it. If you put the fan to one side you will starve the other one of cold air. The only thing you can really do is have a big fan on each corner or have a front mounted intercooler.

 

 

PS. Nelson you seen the new laws regarding front numberplates?

 

Stuart

Originally posted by SRRAE

 

 

PS. Nelson you seen the new laws regarding front numberplates?

 

Stuart

 

No, what are they and how r they being enforced ?

RR's are a big problem for modern bikes too, many of which use forced induction to bring on the big power figures. You need one hell of a fan to simulate the amount of air flow at 100mph plus! In fact there can't be many fans around that can simulate that sort of pressure.....ever been on a bike, or stuck your head out of the window at over 100mph? :eek:

Yeah LOL!!! If the fan was actually pushing that much air out, it would fly off by itself :D

ive stuck my hands out the roof of an mr2 at 140mph **** me not doing that again, and it effects the drag of the car, driver had to correct slightly heh.

Andy,

 

Which RR do you use? One somewhere round our neck of the woods?

I have always used GRV over at Oldham for all my race cars and the 240 and 260.

 

Nick

I think rolling roads are a daft idea, surely if your gonna thrape the shit out of your engine, you might aswell get the pleasure of doing it on a road/ track!!!

Originally posted by b19rks

I think rolling roads are a daft idea, surely if your gonna thrape the shit out of your engine, you might aswell get the pleasure of doing it on a road/ track!!!

 

Yeah, but it's nice to get the bit of paper that says just how fcuk-off mental powerful your motor is. My old GSX-R750 won the 1st SuperBike magazine Ultimate Brute Horspower Shootout, and it gave me a hell of a buzz. Also gives you the power and torque curves so you can identify where in the rev range any improvements can be made (not much use if the RR makes your engine go BANG though:mad: )

Originally posted by Nelson MainFella

No, what are they and how r they being enforced ?

 

Japanese import cars are now allowed to have the Japanese sized numberplate on the front. But I dont think that the police will be able to tell the difference between a UK and Jap Z so I think the UK owners could get away with it. :D

 

No arguments now about the location or size of the plate for air flow now :D

 

 

Stuart

How bigs a jap plate?

And how hi is a China man??!!!!

Depends what they're havin for dinner!!!!!

Sorry couldnt resist!!!! It must be the lack of fresh air in the office thats doing my head in!!!

Nick:D

Originally posted by b19rks

I think rolling roads are a daft idea, surely if your gonna thrape the shit out of your engine, you might aswell get the pleasure of doing it on a road/ track!!!

 

yeah on the road you cant here your car detting, so you think tis goign well, and yur blwing it up (believe me i know lol)

 

A dyno is bar none the best place to get a car set up correctly, as you can control the enviroment you have to set it up.

 

Point of this thread though is DUFF having another wind up :D:D

how many cars have actually imploded on this forum other than John newcumbs (no offense intended John) due to the person on the dyno not having a clue?

Duffman winding people up? Nah, he'd never do that would he......... again!?!?!?!?

LMAO

 

Nick:D

ROFLMFAO :D:D:D

 

No seriously this isn't a wind up - just a kind of 'what to do if you wanna go on a RR'. There seems to be a fear on here of rolling road sessions but sometimes they are the ONLY way to do the tuning. The dry ice is a very good idea BUT how many places actually have any??? Too many back street tuners around really. If you want to RR your car then make sure its a well know and reputable company. It also helps if you know roughly what they should do to protect your car - which is the idea of this thread. NO wind up intended at all....

 

CheerZ,

 

Andy

anyone got any info on this front jap plate size mallarkky????

what about a gas fogger system for the IC's? In the states they use NOS fogger systems, but ive heard carbon dioxide can be used to good effect too and would be much cheaper than using a whole 50 quid cylinder of nitrous for one session.

Ive also seen vids of dynos with people blowing co2 fire extinguishers over the IC. Surely this would be ideal for a zed?

And as for the number plates, I believe the size is the one on the blue car 3rd from the right on this pic.

 

 

IIRC these have been illegal for a long time. Im sure the square rear plates are illegal, also the law states the manufacturer of the plate must be printed on it somewhere, so if the pigs find you have a square number plate (which just happen to be legal when they are fitted to 4x4's, trucks, etc.. when sold in the UK) not only can you get fined, but the manufacturer gets an earfull too, this is why the rear plates are more expensive now.

 

Anyway I don't think the cops could really care much about the number plates tbh, ive seen cars with very small plates on running around, around here, there is an MR2 with a plate so small you can hardly read it, also there is a golf with black/silver plates on. They have been running around for a long time so it seems the police dont want to stop them. Also a lot of the cars I saw at billing didnt even have a front number plate!

This has to be the worlds most of topic thread lmao, rolling road dynos turn into number plate lessons :D

Don't worry Waz it's nearly his bed time anyway :D

 

No offence Clarkey, oh btw you're talking outa your arse about the number plates but I don't wan't to get any more off topic. ;)

 

Tim

ok whatever, I know im right....

 

and no offence, but your english sucks ;)

blue car... 3rd from the right.. wooo hooo thats me