Gary's Track Day/Fast Road Weekend Car 1zz Turbo.. Now Built 2zz Turbo with E153

[cptspaulding]

It's collateral damage if it goes.

 

30 seconds on, I'm still laughing.

[Gaz2405]

Turns out upping the fuel pressure only helps a little bit.

Still at 100% duty cycle and clipping 13 AFR after 6.5k.

Back to the drawing board.

One thing is for sure the boost isn't getting turned down.

I've put a 6k rev limiter on it at the moment.

[Gaz2405]

New fuel pump ordered, seems I'm not out of injector but out of fuel pressure.

450l walbro on its way.

I should really get a fuel pressure sensor added to.

[Gaz2405]

Chucked in my old Kemso 340l pump to t st the theory.

Was able to take fuel pressure upto 70psi and eradicated the Injector issue.

30mins later pump failed to start.

Obviously want happy sat at 70psi.

Old walbro back in for now and running again. Turned lift off until the new one arrives, still silly fast.

[Gaz2405]

Went for a drive this afternoon, rain stopped play, so had a play with the launch control settings.

[Gaz2405]

Needed more flames......

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That'll do!

[puma2]

  now that picture blends nicely in with sky
i like that  

[Gaz2405]

Test run of a GT Wing I've had in the garage for a few years...

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[Alex Knight]

Chassis or body mount?

[Gaz2405]

Chassis or body mount?

Just body for the time being to see if I like the look.

Plan is then to chassis mount it, (or a similar size/style wing)

[Gaz2405]

Couple of little bits, got let down in the first fuel pump I ordered, was showing in stock and then was in a 4-6 week lead time once I'd ordered.

So found a Sytec one at demon tweaks that will do the job, that came today but I'll fit it next week.

Currently enjoying the car just on the small cam with a rev limit of 7.5k.

Pulled my plugs last night as I was having a misfire around 7k under high load.

I was still using BKR6E's gapped to .8mm.

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I wasnt too concerned on the slight fouling as I knew I'd been running rich, main thing was all looked the same, indicating all cylinders are under same conditions etc.

I had some BKR7's as spares which are a step cooler,  so I gapped these to .7mm and hey presto misfire has gone.

One thing I did last night which had been annoying me for a while was wind the throttle stopper back half turn, as I had 2% tps at idle l. This is from when I was having my IACV and idling issues.

I'd been masking it by controlling the idle with the ignition rather than the IACV, which was resulting in a poor vacuum reading.

Adjusted to 1% tps and fuelling sorted, I now have a nice low idle, pulling a much stronger vacuum and not relying on ignition control to manage the idle.

Spent this evening then out sorting the low and mid range fuelling. Whilst it was fine where is was for driveability, it was on the rich side, so a few hours driving and editing and smoothing the map worked a treat.

[Gaz2405]

I got brave tonight I did some launch control launches and some GPS 1/4 mile timing.

1st attempt, way too much wheel spin but an 11.s, slightly uphill.

2nd attempt, much better launch, flatter road. 10.4s.

Even though, it's only GPs timing and it's all to be taken with a rather large pinch of salt, I'm really pleased with how well it's going.

Time to get a draggy I think!

Still unsure about the wing, I think it needs more front aero to make the look.

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Might looks at removable front and rear extreme aero for track and smoother sleek for road driving.

[Alex Knight]

If those figures are close to accurate, that's crazy fast. Amazing job, well done.

Wing doesn't look right IMHO. Car looks aesthetically unbalanced.

[Gaz2405]

If those figures are close to accurate, that's crazy fast. Amazing job, well done.

Wing doesn't look right IMHO. Car looks aesthetically unbalanced.

Yeah I get you on the wing, I'm just not feeling it.

I'd like something similar to the APR wing with wider feet but I'm not dropping a grand on a wing!

[Alex Knight]

BGW only really works on a widebody/actual race car I think.

TRD wing is nice though.

[Gaz2405]

Yeah, I'm with you on that.

I like the TRD, but also like the smooth/slippery look of the ducktail.

[Mark A]

I've wondered if you could take a duck tail and add an adjustable large carbon fibre gurney flap to the top or bottom surface. My friend did hill climb the championship winning Lateral Performance Impreza and it never used a big wing only a ducktail with a shaped gurney flap.

[Gaz2405]

I've wondered if you could take a duck tail and add an adjustable large carbon fibre gurney flap to the top or bottom surface. My friend did hill climb the championship winning Lateral Performance Impreza and it never used a big wing only a ducktail with a shaped gurney flap.

Oooooohh carbon slip on gurney

[Gaz2405]

BGW now off.

Out this evening after work.

Tweaked launch control and about 5 more 1/4 mile launches.

All between 10.4 and 11.2.

Pretty confident now it's doing those times, so chuffed to bits with it.

Now to get the rear diffuser back on and flat floor.

Then it's big brake kit fitting time.

Which means 16's upfront.

[Gaz2405]

Had an absolute nightmare with the car today.

Swapped out the fuel pump, a 340l AEM one arrived instead of the Sytec, but makes no difference.

It need some slight shaving to make fit, couple of mm if that.

That was all fitted last night, so plan was this morning after doing jobs, take the car out and adjust the fuel mao to suit the new pump, then get the big cam sorted.

But it just wasn't having it, I was running it at the same pressure I had the old one, but the fuelling was way out. Way, way too lean it just wasn't having it.

First I thought maybe they've supplied the wrong pump and it's not a 340l. Went back, checked yeo 340l, some more head scratching later, has the o ring not sealed properly etc.

Back out it came, and back together again. Fuel pump swaps in 5 minutes now!

It appeared to have sorted the issue, where I was using early 100% DC on the injectors I was back down to 70%ish for the same target afr.

But then a few pulls later the AFR's go into the 13's again.

Now I can normally tell from the exhaust note and how well it pulls if it's leaving out. But it just felt the same.

Has my wideband given you the ghost??

I put my old pump back in, and reloaded the map it had on before I started faffing this morning. Now this was running leaner than usual too! Only by half an AFR point, but I knew exactly where that fuel mao used to get me.

Anyway, fuel pump back out again, inspect the wiring, and all bungs.

Bingo, the rubber bung I was using the blank the factory regulator had sprung a leak.

Had a same size bung laying around spare, so fitted that and fires her up again.

By this time is was 8pm and I'd already mowed the lawn and CBA going back out again.

I ordered another wideband sensor just to make sure.

Might have a drive out tomorrow, to see if it's sorted.

Bloody cars!

[Gaz2405]

Confirmed tonight.

Knackered o2 sensor.

Starts off reading accurately, then after two three pulls reads constant 14.4-8.

Highlighted all the fuelling cells at idle and added enough fuel until it stalled. No change.

I'll swap in the new one when it arrives tomorrow hopefully.


Plus side is on the few pulls I did do, we were using a lot less injector DC than beforehand, so seems like pump is sorted too.

[Gaz2405]

New wide band sensor arrived.

Quick change out and test and all is good!

Decided that whilst it was waiting for a new sensor to make a start on swapping over my charge cool radiator. I've had a Cinquecento radiator in there doing the job, but I'd had a larger universal rad sitting in the garage for over 2 years now so decided to start swapping.

Which whilst the bumpers off I may as well sort a small front splitter from 15mm ply....

Pics soon.

[Gaz2405]

Well isn't making a functional splitter a pain in the arse!

Currently I have a full flat floor under the car.

The front section is bolted in pace using the front subframe bolt holes and follows the curve of it. So it curve slightly up towards the front bumper.

Now I already scrape the car on some sections of bumpy roads as can be seen from the scrape marks.

So I removed the front section of flat floor and looked at having the splitter go in between the subframe stays.

I think I need to notch it more around the subframe so all the bolts clear

Either that or it's getting scrapped.

Other option is to just have a shorter splitter that only goes under the car about 40cm and put my flat floor back in.

[Gaz2405]

Flat floor addition!

I've added my version of a functional splitter today, 15mm ply, bolted to the chassis and can take my 12st standing on it.

Flat floor is 2mm galvanized sheet, so is heavy, think it work it out at 15-18kg, but that means it's super robust and the qeigtia low down.

It's saved me when I hit some oil at Blyton and spun up and over the curb, which would have ripped my braces clean off.

It also acts as another form of bracing as it's bolted through the chassis rails.

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[jvanzyl]

New wide band sensor arrived.

Quick change out and test and all is good!

Decided that whilst it was waiting for a new sensor to make a start on swapping over my charge cool radiator. I've had a Cinquecento radiator in there doing the job, but I'd had a larger universal rad sitting in the garage for over 2 years now so decided to start swapping.

Which whilst the bumpers off I may as well sort a small front splitter from 15mm ply....

Pics soon.

Would it be possible to share some pics of how you had the Cinquecento radiator mounted? I'm going to be doing that for mine.