SecretAgentMan

U've got fairly decent pistons though Andy...and some weird H2O-thing.

I think I'll just enjoy the wussy 1,4 and see what happens with JB's lump.

/J

carlos_hiraoka

Is that 1.5bar @ redline ..... hope JB is using bigger injectors is also looking for the fuel supply limits ?????

john banks

550s awaited, also with the ported wastegate I am still struggling for top end boost despite 1.2 bar actuator - only just managing 1.2 bar at 7000 RPM. At 90% injector DC on 440s it is a little lean. I will see what I can get at the redline.

[Edited by john banks - 9/19/2002 6:50:03 PM]

EvilBevel

Sorry for dummy question, but not really being a DIY wizard... how would one go about blocking ones scoop ?

Mr J

My problem with the VF30 is that the boost isn't getting lower in
high rpm's it's just keeps climbing..but haven't tried to set it over 1.3bar yet...but usually have ~1.33bar @redline..
Maybe just the link that overboost

JB were did you get the catch tank from..I think I will be needing one

/Kvarnis

[Edited by Mr J - 9/19/2002 6:56:07 PM]

carlos_hiraoka

what are your wg duty cycles at 7k rpm ?????

john banks

91 % (max) or Dawes. It is the wastegate that cracks open - proved this by wiring it shut and there was alarming top end boost. Really need a 1.4 bar actuator I think.

Theo, I am certainly not a spanner monkey. Took the undertray off and get a sheet of 1.5mm thick aluminium, sprayed it black, drilled some holes and used some felt pads to stop vibes. It leaves a gap at the turbo side to provide some cooling.

Catch tank from JW Racing - arrives tomorrow. Will fit and then start advancing the ignition and tightening this actuator Looks like I will be able to advance it a lot since I could happily use the settings I previously had for 1.5 bar without a hint of a tinkle. The combo of the catch can, freer intake and FMIC should be nice for timing.

[Edited by john banks - 9/19/2002 7:32:18 PM]

Moles Dad

Blocking the scoop ?

Can we have some 'clever' people give some reasons please, I just thought more cooling the better, but I can relate to poss pressure versus rad and fmic air flow...any real thoughts ?

I can add "air under the car" to my list of reasons (excuses) why a little Honda done me today

Moles Dad

19-30 and no replies ? Does that mean you all watch Eastenders ???

john banks

No it is just that I am not clever.

Moles Dad

Excellent

Youre so mod(est) JB

carlos_hiraoka

John r u already using the IHI P20 based hybrid ?

Andy.F

MD

The clever people are on i-club.com They have tested this and achieved lower charge temps and lower coolant temps especially during track use. I've blocked mine and I don't even have a FMIC

john banks

Yes Carlos except I went for a P18 on Mark's recommendation.

SecretAgentMan

...I'm thinking of a 195 meself - gonna fiddle with one this w/e.

/J

P20SPD

iTrader: (1)

Andy what were the results of blocking off the scoob. Reasons etc.

John what are APS' reasons for blocking off the scoop.

Theo, dead easy as John says, use the original undertray off the scoop as a template for drill holes etc.

I think i have now cured the knocking pipe. Re-tapped the screw hole and used a longer bolt, one off the turbo heatshield(they always come in handy), and its now pretty tight.

No chafing on pipes either. I have now figured out where you meant by your drawing. I have about 0.5cm clearance around this area. Will keep checking though.

Steven

carlos_hiraoka

and how is the throttle response with your new APS FMIC ?

P20SPD

iTrader: (1)

Throttle response???

Well its a bit like having a TD05 as opposed to TD04, but not quite. I am still running pretty much standard compared to john.

Bang your foot down below 2500 and wait for the kick at 2800. Above 2800, say 3500 in 5th pout your foot door and it pulls so smoothly, only occasionaly a small amount of overboost.

john banks

Throttle response does not seem obviously worse to me. But I have been fixing exhaust leaks so that might be improving things too.

Catch can tomorrow and raising top end boost to about 1.3 bar. If it blows up I have a Fiat Panda for a week in Greece with about 10% of the power of the Scooby. 550s after I get back from holidays should hopefully get the anticipated 100% injector duty cycle at the top down to 80%.

carlos_hiraoka

Posted on i-club :

J, why don't you get a big T3/T4 instead of the IHI hybrid turbo to get better 1/4 mile times , u used to talk about trackdays, and now you are talking about "trapspeeds" ? ..... probably later you will also refer "going to the track" as going to the drag track like on i-club.

[Edited by carlos_hiraoka - 9/19/2002 10:28:36 PM]

Moles Dad

P20, what are you using to control boost? is it all ecu and no evc ? (if you know what I mean)

AndyF, I-club...bin there

What about the blocked off scoop causing a 'wind sail' effect...no flow through must mean it will slow down (even more) my car ????

I thought you have chargecooler anyway

Andy.F

I have no cooler at the moment still building my FMIC

Yea I wondered about the drag issue ??? The i-club boys seem to think it's quicker overall to block it, better still a reverse scoop like they have on the front of the bonnet (hood )of the WRC's

OR - Best plan yet route the air to your intake filter for some RAM effect ??

P20SPD

iTrader: (1)

MD - still standard ecu to control everything.

Andy - i was wondering wether this was feasable to rout air from the scoop to the airfilter. Will see if its possilbe, could be too much piping in the way now!

ChristianR

iTrader: (1)

in terms of blocking the scoop - I thought harvey did some tests (blocking the scoop, then half the scoop etc) and found temp's overall increased?

Perhaps harvey could post his findings?

[Edited by ChristianR - 9/20/2002 8:23:47 AM]

P20SPD

iTrader: (1)

Christian, thats what i thought and said earlier, but no response yet?

Jamie Whitfield

Christian

You are right, Harvey did do some tests and found that inlet temp rocketed, don't do it!

I'll speak to him later and see if I can get more details.

Jamie

www.j-w-racing.com

P20SPD

iTrader: (1)

Cheers Jamie, thought thats what i heared him say to Mark at Elvington. So why have APS told John to blank it off????

ps folks, for your amusement i have posted the perils i went through last night whilst sorting the knocking. its in scooby general under Word of warning. No doubt you will all now **** yourselves with laughter and tell me i should get my garage finished.

steven

SecretAgentMan

lol@Carlos

Yeah matey - tempted by the dark side been have I.



/J

P20SPD

iTrader: (1)

Its bloody knocking gain. Bolt has come loose again. There just isnt a deep enough thread for it to bite.

Must sort it this weekend!!!!!!!!!!!!!

john banks

Mine was certainly not lacking performance today with it blocked off, but I had just tightened the actuator to 1.35 bar which just allowed same at 7000 RPM. Really need those 550s now. When I say blocked off I did leave a vent over the turbo area. It is really such a big gaping hole and if a scumbag looked through the scoop they would be able to see the alarm.

[Edited by john banks - 9/20/2002 9:01:19 PM]