The handling problems were nothing to do with weight distributions, its a near perfect 50/50 anyway, it was purely geometry related.

 

Just an observation chip but have you tried the wastegate in that position before? It looks like the gases would be happier going round the turbo rather than out the wastegate when needed.

Looks like it will be fun when done

 

martin. I've not tried it there before if it prooves a problem we'll just move it. it was spitting lots of flames out the wastegate hole when we ran it without the gate to test it though so it seems like the gasses will go that way

 

top stuff mate

what iscv is that, just a vauxhall one like off an omega?

i need 2

 

standard calibra turbo icv mate. the non turbo ones as the same

 

Let me know how you get on with it, w/gate positions interest me

 

glad its going Chip.

hope to see it at Bedford.

 

well done chip youve done a good job there

how you planning on cooling the air inlet temp? with a intercooler or charge cooler? and where you planning mounting it

 

huge charge cooler. 19 litre capacity of water. two cossie intercooler cores inside it. it mounts low down at the back.
garage19 is just finishing it off for me now

martin. will do. I think I may need a second or larger wastegate than the 38mm though

 

sounds like youve got the ideas for it to be a good car hope it serves you well and does what you want it to do

 

Thanks butch mate

 

what power are you expecting from the engine chip?

iirc a 38mm w/g is good for 600bhp

much more and you need a 42mm one

 

Why is that Martin?

 

bhp and wastegate sizes are unrelated. can run 2million bhp with a stock internal gate if wanted.

basically the bigger the turbo and the lower the boost you wanna run, the bigger the gate needed so less gas goes thru the turbo.

 

ah i see

 

Love it mate


What are the full engine specs?

 

Good luck on reliability.

Great effort though..10 out of 10

 

LOOKS GREAT!

But will a mini with red wing mirrors pass you at bedford??

 

Probably, at bedford I will be running on wastegate pressure only (if its even run in by then to go at all as still got a lot left to do) which is only 0.7 bar

 

Approx specs from off the top of my head;


VAUXSPORT STAGE 1 CONVERSION comprising of:

Engine Bottom End:
C20XE block
Line Bored
Sump surface machined flat
Head mating surface machined perfectly parrellel to bearing tunnel
Bores exactly perpendicular to bearing tunnel
Block stress releived by hand to remove casting marks and other stress raisers
ARP mains
ARP headstuds
ARP2000 rod bolts
Steel XEV crank
Arrow Conrods
Arias Pistons
Oil Squirters



Cylinder Head:
Coscast casting
Neil Roper Developments port bored inlets
Neil Roper Developments port bored exhausts
Neil Roper Developments hand finished inlets
Neil Roper Developments hand finished exhausts
Piper double valve springs
Solid lifters
+1mm 214n stainless exhaust valves
+1mm 214n wasted stem stainless inlet valves
Cometic 1.9mm gasket



Gearbox
Getrag F28
Quaiffe ATB diff
Twin plate paddle clutch
Lightweight flywheel



Inlet
SBD/Jenvey throttle body manifold
Jenvey throttle body spacers, 50mm
Custom made inlet adapter plate
19mm ally trumpets
RS200 inlet plenum
Vectra V6 64mm throttle body
2.5" ally inlet piping
Blue silicon hoses and joiners



Turbo
GT35R Garrett
Tial 38mm wastegate
Earls filter
Braided feed line with inline flow restrictor



Exhaust
Garage19 manifold to my specs
Garage19 produced exhaust to my specs
Garage19 wastegate pipework to my specs
Steel exhaust gasket



Ignition system:
NGK Iridium plugs
Nologoy hotwire leads

 

Bit of a rubbish spec really Chip

also don't you mean XER steel crank

Did you run a ecotec crank pulley and the ecotec multi belt bottom pulley to get round the different bolt arrangement ?

 

Yes mate, that was a typo on the crank, its an XER, and yes I used an ecotec pulley for it.

 

"bollocks.....the boot wont shut..."





good effort. and good thinking on the steering arm thing.

 

Exhaust has moved now, that was just a prototype doug made me

 

Fantastic mate, I don't think anything else could provide you with as much fun for your money, I love it.

Benni.

 

It's going to be quiet then

 

 

Looking good, I still remember when you took me out in the red LET nova when I had the datsun................in the WET

seems like a billion years ago now, nice to see things evolving

 

Wasnt the ideal weather to showcase it

Shame cause relatively speaking for a light fwd car of that power, that one was actually pretty good as it was on big shafts and a quaiffe diff.

 

Getting there Chip, well done & still very impressed !

PMSL @ the "bollocks........... can't shut the boot" comment !

Chip if you need any help wit this give us a bell & i'll see ya @ the Surrey meet wit that thing !

jb

 

Thanks JB, see you at the surrey meet then

 

Blimey Chip you have finally done it, I wont be able to take the mick any more. Looks good & im sure it will perform just as well, see you & JB at the surrey meet, best remind me when it is.
Rod

 

Im not sure myself when surrey meet is, it was meant to be yesterday based on the "first tuesday of the month" principle, but I assume its been moved as that was new years day of course.

Just need to get the engine run in and onto the autronic now

 

That photo doesn't show a very good picture of the wastegate angle.

As you know, the problem with waste gate exit is to get it to flow well in both directions with out one impeding the other too much.

Toughest test will be when Chip is running 0.7bar to run in.

I have done a quick MS paint drawing to better show the actual angle/take off from above.

 

Awesome TIGer and now graphic artist, is there no end to your talents doug?

 

As Martin said, with that gate positioning and a 38mm gate i don't think you'l hold 0.7bar, i reckon its going to creap as you get towards top end.

My manifold flows very well towards the gate, and i struggled with a 38mm gate to hold 1.4 bar, it crept to around 1.6 at top rev's. (GT35, Strokered Evo)

Still though, only 1 way to find out, awesome car, what exhaust housing is on the turbo? 0.63?
Is the screamer going into the exhaust?

 

TBH while im running it in, I can always just adjust the throttle position to limit flow on the way in as well.

Will still be nice to get it out on track for a bit of a "shakedown" even if the wastegate control struggles at the level of boost I want to be running that day.

 

PS

Yes its a 0.63 housing, and the screamer needs to go back into the exhaust to keep the noise down.

 

I ran a similar take off with if anything a slightly less waste gate bias angle on a GT30 manifold and managed to hold 1 bar perfectly (as seen in the map sensor data log).

What turbine housing were you running on the GT35? I know some of the GT/HKS hybrid evo turbos seem to run very tight exhaust housings eg Hks GT25/40.

I guess we will just suck it and see.

 

Just read yours was a stroker (2.3?) so looks like you were running with a bit more ex gas to begin with as well.