after a melted piston i decided to rebuild my 20vt to 500 + Bhp .
the parts i have so far :
82.5 forged pistons , forged rods + arp crank bolts , uprated head bolts , uprated head gasket ,tubular manifold ,twin plate clutch , oem seals and bearings ,
also i did porting to the head and bought an FMIC .
i need your help on :

what turbo to get ? i thougt on garrett gt3076 or hks 3037 ,do you have other suggestions ,

engine management - motec m800/m48 pro or haltech e11v2 ,

which cams to buy and sould i makie the hydraulic lifters to mechanic .

i have l&m chargecooler allready installed i was told it will restrict the air flow , is it true ? sould i remove it ?

if you have other ideas\suggestions it will help alot .
im sure there are thing i forgot if i will remember i will add to the post
cheers
yoni

it sounds like you have most of what you need to reach 500bhp

However, you WILL need to get rid of the chargecooler - it is too restrictive and a good FMIC is capable of holding the charge temperatures down

GT3076 should be enough

You'll also need a straight intake pipe (SIP) and a good airfilter

What injectors are you going to use?

Love the attitude! Sounds like a Clarkson quote.

If the manifold a branch for an external wastegate, I'd be tempted by the hks.

GT3076R but what A/R?
External Wastegate 100% must
3" downpipe & exhaust
AUX belt protector pulley
Brass water pump
ECU = OMEX 710
Decent fuel injectors
C&B cams Roger has a brand new set for £400
Consider Aquamist
Early 5 speed gearbox with strength plate and oil cooler

Where did you get uprated head bolts and crank bolts from?

ignore me

i will remove the chargecooler ,
i have a spearco fmic suite for 550 Bhp .
i havent decided yet about injectors i think maybe 550cc .
the tubular manifold will be with ex wastegate probably tial 40 mm .
the gt30 will be with ar 106 , i heard only good thing on the hks but the price is more then 2500 $ ,
engine management will be motec or haltech nothing else .
i need to do a new downpipe so it will be 3" but my exhaust is 2.75" sould i leave it or do a new 3" ?

all the internal parts came from a shop in italy .

cheers,
yoni

Which exhaust manifold are you going to use and which diameter tubing?

I think you'll need bigger injectors. I'm using 630cc ones at the moment. That was with only 325 bhp at the wheels but the tuner I used liked to run it very rich. There was plenty of capacity left in the injectors and they still gave a good tickover.

John

If you're going to use Motec, don't bother with the M48, although it can handle 5 cylinder engines, you need so much more kit, ignition expanders and the like, that you might as well go the M800 route. There is also a glitch with the algorithm in the M48 that occasionalyy manifests. Motec Australia have been sent an oscilloscope trace of it on my kappa, but still can't resolve it

Think you should also be considering an external wastegate at these power levels - and I didn't see uprated fuel pump in your list but you're going to need one of those as well

Running 903cc injectors on mine

M48 ecu is really limited with only 2 aux outputs so if you want idle valve, multicoils, boost control, tacho you've no chance. M800 is much better, conside pectel as well if you like.

rich

well seems like its m800 vs halteche e11v2 .
ive ordered today gt3076 ar 106 and tial 44 mm ex wastegate
the tubular manifold is at desinging level so no input about it yet .
more updates soon ...

thanks
yoni

I would have considered another A/R of your Charger. I think 0.82 would be more than enough for 500HP, if installing an external WG...
With 106A/R you will gain poor response at low revs...

Juergen