Extra turbo.

[Brigsy]

The paintwork is original, It has a few a scabby bits but its 12yr old. the previous owner was a car valeter & it looks like its had a machine polish before i got it.

Took it down york raceway today for a few test runs before pod. As the surface isn't too good i knew i wouldn't break any records but i were more concerned about trap speeds.

Best run was 14.73 @ 100. All other runs were 14/15 sec with consistent 100mph traps. The cam/18lb boost must be doing the job No idea how much power ive gained but 10mph up on last runs at the pod.

Best run slip here.

[Matt Cole]

Thats looking like 200bhp matey which aint fekin bad for a mobile brick!!

[Scoff]

Well done, good trap that for something as non-aerodynamic as an extra van

I remember Haz took his volvo engine out of his van and put it back into an R5 shell, his traps went up a couple of MPH.

[Os8472]

Thats looking like 200bhp matey which aint fekin bad for a mobile brick!!

nah i got a 13.7 with 190bhp, i recon accounting for the poor aerodymics of the van, you've got 180bhp

[Brigsy]

Im pretty chuffed with it like, feel like im finally getting somewhere. Should be good for a 13xx with slicks fingers crossed. Kept it on road tyres today, no point fitting slicks at york.

Might up the boost a bit more before pod, really need to hook up an act gauge first as ive no idea how good this intercooler is.

[Os8472]

what size wheels you on now?

full slicks on 13's and that fecker will fly

[Kenobi]

Im just gobsmacked at how much i want that van.

[Brigsy]

Ive got 15" williams wheels on at moment with toyo's. Ill be digging out the 20" mickey t's for the pod.

[Os8472]

Ive got 15" williams wheels on at moment with toyo's. Ill be digging out the 20" mickey t's for the pod.

I know for a fact with 13's mine would go a shed load faster, proberbly hit a 13 dead, you'll be in the 13 for sure with that thing, espically with slicks

[Scoff]

nah i got a 13.7 with 190bhp, i recon accounting for the poor aerodymics of the van, you've got 180bhp

Wrong, you can't base HP guestimates on ET!

[Os8472]

Wrong, you can't base HP guestimates on ET!

I'll get back in the cupboard then

[Kenobi]

Wrong, you can't base HP guestimates on ET!

Sauce? Aliens? im getting in his cupboard too.

[Rob@Backyardracing]

Well done mate...... hauling arse now for a van...

[Tim B]

New poster! (less than 10 posts)

Well done mate Good trap speed. Im going to have to pull my finger out and get my van ready to challenge you

[Hez]

Was hoping to pop up for this, many there?

Quality time mate, no doubt they will keep getting better

[Brigsy]

Well the van ihas been running well touch wood.

Been trying to get the boost up a few psi before pod, Still emptying the bowl with 2mm needle jet @ 18psi at the manifold...

I were convinced the fuel pump was a little tired, not even sure if it were a gt turbo pump so have replaced it today for a gsf ph1 bosch job & no change. This annoyed me so i have found a 2.3mm drill bit & have successfully drilled a needle out to this size

It seems to be sealing fine on idle but have yet to test it on the road, tomorrows job. If i had more time before pod id be looking at trying a setup that fills the bowl from the main jet hole when on boost like Ave done.

The question i have though is how come the average gtt with a hot cam can get away with running more boost than i can with a 2mm needle? Im sure im not making stupid amounts of power yet...the only thing i can think of is that my boost gauge is a mile out & not reading correctly, Highly unlikely though

[Matt Cole]

It could be that lairy cam Briggsy. Lets be honest, its got good potential but needs the fuel back up for it. DD used an MF2 system with 2 auxilary injectors to get that thing to fuel at high rpm.

[Brigsy]

Aye possibly Matt, Ive had to alter the jetting quite a lot from old setup with this cam!

Ive always had the leaning problem with std cam/16lb boost, Had to up the needle to 2mm to keep the fuelling right. I get the feeling something isn't 100% on the fuel system but its all in good shape so who knows

Had a short drive with the 2.3mm needle in & seems to be driving as normal. Going to test it later, Fingers crossed eh.

[Markey Mark (BD)]

Just a thought mate, what the fuel lines like on the van? Are they the same size as the gt turbo or have any sort of restriction in them.

I found the fuel sender had a smaller diameter outlet on the top of my old van which restricted fuel supply, migh be worth checking.
I know not the same veichle but i found a restcitor in the fuel lines on a clio i was doing a conversion to, might be worth tracing the fuel lines back to see if your van has one

[Brigsy]

Ive got 8mm copper fuel lines on the van. Still using the derv sender unit, the pipe o/d is the same as the gtt, but as for the inside who knows ill have to investigate.

Well the 2.3mm needle didn't work, lasted about 5 miles then started ovefilling the bowl. Comedy black smoke out the sidey & wetting the plugs in a petrol garage, Great fun

It did sort the leaning problem though. Ill have to look at other options to cure the problem.

Have rejetted the carb slightly & the afr is flat 12.1 - 12.2 @ wot until 6800 in 4th when it starts to lean off as bowl emptys. Going to leave it be until after pod as ive had no end of little problems with the carb tonight. Itching to up the boost too im sure there's more power in the current setup.

[Tim B]

Good luck for tomorrow. can't wait to see what time you can do. Shame I can't be there Anyway have fun

[Adey aka Ewok]

how about a 2.1 or 2.2 mm needle? think i might be going down this route soon, or even a single injector setup, tho have been looking into a ave style single solonoid to top up the carb from the 12mm nut

[Dan O'Neill]

It could be that lairy cam Briggsy. Lets be honest, its got good potential but needs the fuel back up for it. DD used an MF2 system with 2 auxilary injectors to get that thing to fuel at high rpm.

Surely this would cure the fueling problem, MF2 controller would make it alot easier to get fuel to the carb when needed wouldn't it, if im wrong please correct me as Im still learning about tuning these engines, My mate has got one on his 5 and it doesn't seem to hard to install.

[Brigsy]

Mf2/injectors would have to be last resort for me, It would give me little gain imo & the cost issue. Ive got the fuelling bang on with the jetting as it is, just need to stop the carb emptying.

Are there any 2.1/2.2 needle jets available off the shelf Adey? If i can find a drill bit ill have a crack at drilling one. If not ill definitely be having a go at filling the bowl from the base.

[Mart]

The other alternative is to up the fuel pressure a psi or 3, or as high as you can go (at idle) before the float is forced open.

[Brigsy]

Yeah that's got to be worth a look. Are they any regulators i can get off another car to try to keep cost down?

[Mart]

Not that I know of mate. Most, if not all, efi fpr's will be set at a ~3bar base pressure, and there's not that many other carb'd turbo engines to sniff around for an alternative solution.

I had an adjustable Malpassi fpr from FSE on my old raider, and it didn't cost that much moolah - FPR009 was/is the part number, and FSE will sell direct to joe public.

[Ashy]

[quote=Brigsy;73123]Mf2/injectors would have to be last resort for me, It would give me little gain imo & the cost issue.[quote]

Still got mine if you're ever in the market!

[TNT!hammond]

Brigsy are where are you taking reference for the fuel pressure ? I was told if you take it from the comp housing it will give you a little more pressure , think it was maybe rob or scoff?

[Brigsy]

Ive got the ref pipe plumbed into carb top, will give that a go

[TNT!hammond]

worth a shot mate and its cheap to do , have you checked you fuel pressure at all though? may not be the refrence thats your problem maybe it the reg . just a thought thats all

[Andrew Cooke]

Yeah that's got to be worth a look. Are they any regulators i can get off another car to try to keep cost down?

big vice, hammer

[fishead]

Mf2/injectors would have to be last resort for me, It would give me little gain imo & the cost issue. Ive got the fuelling bang on with the jetting as it is, just need to stop the carb emptying.

Are there any 2.1/2.2 needle jets available off the shelf Adey? If i can find a drill bit ill have a crack at drilling one. If not ill definitely be having a go at filling the bowl from the base.

i got one but its a different size. if you chop the end off a std one an drill/tap it [as in like a sleeve/helicoil type arrangement] it will fit but i dont think i gained much. also tryed upping the fuel pressure a lil as mart said, worked ok cruising about but a good pull it jus flooded itself on gear change. guessing the fuel pressure didnt drop quick enough for the float to seal it ?

[Sparkie]

there is a way to keep the cost down.

i have a banjo (im not gonna use) that can fit into the 12mm nut in the float chamber base.

'T' off the fuel feed to the carb top into the feed into the float chamber base.

put a boost or throttle switch operated fuel solenoid (nos?) in the line.(or a PRV - which i also have )

no need for big float chamber jets.

[Matt Cole]

Do we know what the flow rate is of the std pump?

[Sparkie]

60 litres an hour.

[Kenobi]

Im actually driving to pod just to see this van.,

[Dan O'Neill]

Im actually driving to pod just to see this van.,

I'd love to see this van ive loved reading this thread.

[Kenobi]

Dan is that a Fix or repair daily in your photo?

[Dan O'Neill]

Dan is that a Fix or repair daily in your photo?

It is, untill I get my new car sorry

[Matt Cole]

60 litres an hour.

Do we know the volume of the carb float bowl? I'll try a quick calculation. Looking at it, the problem maybe the flowrate and not the pressure. Also the pressure drop through the pipework could be a factor.

[xenon]

superbe EXPRESS

un amis a moi et en train de finir le siens (je mettrais des photos bientôt )

[Brigsy]

After lack of time/interest in working on the van (due to my daily breaking every 5 mins & life in general) im on a mission to get it sorted before national day.

I have replaced the aei for a 209d, moving it to the ph2 position behind bulkhead & renewed the tdc sensor for a new one as i had a major mis-fire after rockingham. Also have fitted heat protection to my tdc lead. This has sorted the mis-fire as it seems to be running well. Alos have fixed the rad fan as this failed on way back from fcs.

Jobs to do -

Sort brakes as quite a lot of pedal travel, Shoes need renewing on rear as very low when removing drums lastnight. Also going to change fluid.

Replace n/s rear wheel bearing its noisy, dont want that failing on gerrard's.

Reseal timing chain cover/sump, looking forward to that

Change oil/filter, Change dizzy cap/rotor arm. also going to change leads, ive been looking for a suitable angled replacement at cap end without joy so will most likely go for o.e boughicords.

Refit turbo after rebuild as it was starting to smoke on idle, Have removed it & in post to turbo developments as we speak.

Set up boost/fuelling, Going to drop boost down to a bar at mainfold as i want it to do more than 7 laps this year.

Also im going to lift the sender out of the tank, have had a few issues with idle jet blocking every 5 mins. Refitting the filter before the needle jet has sorted this but i want to investigate furthur. All was fine before rockingham so possibly dodgy fuel, who knows?

Started last night & made good progress, pics to follow

[stuTHC]

That's quite a list there fella, dirty hands for you for the next 2 weeks
It'll be good to see the van on the track again, it went really well last year

[Brigsy]

Brakes/wheel bearing are done. Had to replace the drum when doing wheel bearing as some numpty broke it Also painted the axle/drums black & reset the tappets due to boredom.

Jobs to do before n.d -

Reseal timing chain cover/sump, looking forward to that

Change oil/filter, Change dizzy cap/rotor arm. also going to change leads, ive been looking for a suitable angled replacement at cap end without joy so will most likely go for o.e boughicords.

Refit turbo after rebuild as it was starting to smoke on idle, Have removed it & in post to turbo developments as we speak.

Set up boost/fuelling, Going to drop boost down to a bar at mainfold as i want it to do more than 7 laps this year.

Also im going to lift the sender out of the tank, have had a few issues with idle jet blocking every 5 mins. Refitting the filter before the needle jet has sorted this but i want to investigate furthur. All was fine before rockingham so possibly dodgy fuel, who knows?

[raj]

also going to change leads, ive been looking for a suitable angled replacement at cap end without joy so will most likely go for o.e boughicords.

do boughicords have the 90deg fittings at thr cap end? i too have been having trouble sourcing leads which have 90deg at the cap. i was hoping for a red set but looks like ill be going for boughicords too unless anyone can confirm where to buy some in red?

[Kris M]

O.E bougi`s are straight at the end, not 90 degree

[raj]

O.E bougi`s are straight at the end, not 90 degree

shat! well that ideas out the window now

[Brigsy]

Done all the jobs now & only got the fuelling/boost to set up again.

Need to whip the timing chain cover off & reseal it again though, i swear its leaking worse than last time even though i sealed it up really well. It must be the fully synthetic oil ive never had a problem with these in the past. Its really starting to test my patience now

[Brigsy]

Took a couple of pics of it this afty..

My co-driver testing the seating postion before mallory...





A few engine shots, A couple of subtle changes done. Also turbo has had a recon, Thanks to Adam L/turbo developments for a good job & quick turnaround.