Anonymous

A picture to discuss, what are peoples opinions of that

MAD EVO 4

Fookin hell

Cam

Very American

Paul Eggleton

Nightmare

AndyBrew

That is definately all show and absolutely no go I believe its been put together by Owen Engineering and those are baby turbos of a smart car They are fitted to an EVO engine.

it has never been run up and they have no idea whether it will be good or bad

less lag on the positive side I suppose?

Anonymous

AndyBrew, will post my opinion in a minute, just wondered what others through the effect would be, espeically on the lag side of things, but also in terms of the effect on peak power.

AndyBrew

Some of the things I raised with guy from Garrett were:

1. Would you not get some form of pulsing with unequal boost?

2. Would you get more losses from the amount of energy it takes to spool them up or would it be less than a single large turbo?

3. Maintenance, I would imagine thats gonna be pricey to replace?

Looks cool though

rsnissan

iTrader: (9)

looks like one gate for 4 turbos(?)..................................which ovbiously opens once the combined boost is reached from 4 turbos. what happens if one turbo is more efficient and one is less but the same boost is generated to open the gate? are there 4 map sensors or something.


P.S i got in at 2 and feel fooked so might be missing something really obvious

Rhys

Surley the lag couldnt still be a problem? A ie if u got a small turbo on a normal setup then yes it would be quick as it has the gases from all 4 cyc to spool it up. But those turbos only have the gasses from each cyc so would be bad?

Or am i getting the wrong end of the stick?

Anonymous

My response about it was:

I would be utterly amazed if that works well, the turbos are going to get an exhaust gas pulse once every 4 revolutions only, which isnt going to be good for spooling them up, and also when the pulse does arrive, its going to have to try and make its way through that tiny compressor housing which is likely to massively increase the pumping losses of the engine.

originalcabbie

It would be difficult to fully estimate the lag that would be present if the engine was to run. As you all say trying to control the boost could be a problem also.

Its definatly good to see someone still has a mad idea. Would love to hear that tho.

chris16v

chip-3door


Hi chip its chris82a off migweb

Ive now got the nos kit just in need of a direct to port kit. As i've asked before could you set my nos up i'll do the travelling and pay you for your time in money or i could lend you my girl friend for a night if she agrees (think it will be money). In the mean time i'm just finishing off my car. All i need is injectors, decided to go for green 803s which i'm just trying to sauce at the moment. Then its off to noble to be mapped then i'm ready to have the nos set up. Do think i'm ok with standard pump? and if you agree to set my nos up where on the throttle bodies would i put the nos injectors.

So you now what to expect my engine spec is

Fully re-built bottom end
All new shells, bearings, oilseals, gaskets
New Accralite flat top pistons
Arrow steel con rods
ARP2000 rod bolts
ARP head studs
SBD Steel oil pump gear
SBD oil pump nylon relief valve kit
Metal oil pump gasket
New Vauxhall outer oil pump gear
New water pump
New cam belt roller and tensioner
Vauxhall Cam belt
Full Samco hose set
QED Billet lightweight flywheel
Comitec steel multi layer head gasket
New GSI radiator
Coscast head, fully ported & polished (by gary)
Fully re-built head by QED
Bronze valve guides
New valves
QED race springs
New valve stem seals
New valve seats & collets
Titanium valve caps
Q450V cams
New solid lifters
Shimmed by QED
Vernier pullies
Bailey Header Tank
Bailey Catch tank
QED Direct to Head Throttle Bodies 40mm trumpets
DTA ECU & QED made loom
Bosch 803 green injectors (not in yet)
Fuel pressure gauge
Coil-Less Wasted Twin Spark PackGenuine GM HT leads
Genuine GM spark plugs
Wizards of NOS direct port with 100bhp injectors
Progressive controller (not on yet)
Ascar 2.5” Stainless Exhaust System
Ashley 2" 4 Branch Manifold
4” Slash back-box

Thanks Chris


P.S

On mig you asked if i still had your mobile i've never had it