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Discussion in 'A3/S3 Forum (8L Chassis)' started by Andrew@A.L.D, Dec 12, 2009.
That's boss dude well done.... Like the 600bhp lol
Well i have learnt a lot with the last engine and i know the JE mild steel wrist pins can't cope with 30psi and my rod angle ( I think ) as the crush under the pressure
The standard mains stretched on me at over 500 bhp so ARP's all round now
Custom cams made up for me by Newman cams
Tigged the trigger wheel in place as mine started to come loose
Everything i had problems with have now been sorted, I have even made up a new breather system that now runs 3 ports from the cam cover and one from the block. I dropped the new catch can/breather off with the powder coaters along with my can cover to be coated in crackle black powder coat, the inlet will get the same treatment next weekend.
Also 1600 cc fuel injectors will be ordered at the end of the month
Good work dude... glad to see it coming together again...
Some peeps are using the 1.9 tdi blocks to make 2.1's... requires a little modding of the water/oilways of the 20v head so I understand but better rod angles etc as the block is taller... lazy buggers VAG... ;P
I shall stick to a run of the mill 2ltr stroker I think when the time comes lol... although we may have to have a chat about exhaust ports ;P
ooooh, I think you should have a big can of awesomesauce!
Did the pistons not get damaged when the wrist pins got bent? I would of thought there would of been some play and caused some wear on the pistons
You big power S3 guys are made of different metal I salute you
I was lucky really, they didn't bend as such but more like a crushed pin where the rod is
i looked into using the tdi block back in the days but there is a lot of work, I know I could engineer the block to be taller and then sleave the block but that's costly
Lugnuts in the US managed to get 900 bhp from a 2.1 done the way I have so I'm happy to keep mine the way it is
We shall talk ports when the day comes
Big turbo = Big balls ... or is that the other way round?
Nice one mate pretty sure you've covered all angles
It will be a monster
Did you assembly the bottom end on the table? How did you hold the block while you torque'd things up?
Laid the block on the back side
The hard bit was torquing the flywheel bolts lol i ended up making a pulley holder to get the bolts torqued up to 85 lbs/ft
I just have to order my 1600cc injectors and get he boost turned up to 35/38 psi
and get it mapped safely on a rolling road instead of the M1
All very good stuff dude, I hope you reach your 600bhp Goal soon!
It will mapped by Unicorn off the public road or down at Ric woods this time.
This is one hell of a build I take my hat of to you, it's been like reading a great novel once I started could not stop and now I have come to the end so far. But not the close so come I need more input its fantastic I wish you luck for 600bhp ( not that I think you will need it)
Can't believe your still spending in this!!! :thumbsup:
Keep up the good work...
I hope i do hit 600 and i have spent more time a development on head work
My goal was to hit 600 and i didn't do it last time due to small injectors ( 870cc )
Had some hiccups in between and now back on track
Fingers crossed for you... Your not one to scrimp on a build...
And that..... I do try and forget that bit
We all do dude lol...
yep, innit.. lol..
i dread to think what £ has been spent on mine over the years
You've got test and development with yours so 7x more that me?
lol.. and yea... dont even go there. lol
Question for you Bill
What are your thoughts on my engine/turbo running at 35 to 38 psi?
I've now covered all my problems that i have had. Tool steel wrist pins, ARP head bolts ( was running them anyway before ), ARP flywheel bolts and main studs, IE Riffle drilled rods with race coated bearings and HD main bearings, Double dowel crank to flywheel, GTX3076 turbo, JE Pistons 8.5:1 compression. New block with JE recommendation ring gaps, New 4 port breather system/catch can, Tig welded trigger wheel in place, Tig welded oil pump bolt to gear.
have you double pinned the crank timing gear? Im sure you have
I think you should also weld the cam pulley bolt too, in fact weld or pin any rotating part that gets bolted to the engine
600 is a lot of hp, how are your drive shafts??
interesting..... what do you think they can take before they twist or snap?
700 bhp i think? or should say hope! but i don't launch my car hard most of the times as it can spin all 4 wheels when really pushed
why the psi goal andrew?
obv the gtx turbos really come into their own at higer pressures but, if your car makes the target figure at a lower boost are you bothered? Or do you just want to see what the turbo can do?
The GTX3076 is at its most efficient at 2.5 bar or 36.2 psi
do you have a compressor map against rpm and your displacement?
there should be one on garrett's website
I should say that all 20v engine need lots of boost to get good power, i've had some cams made up for me and spent lots of time on the head but the downside to my set up is the down pipe. I would like to see how it goes when remapped with the new set up.
Should do a lot more than 531 bhp
One word Andrew EGT's
Closely followed by Cylinder Pressures
Where is your egt sensor located?
Something I need to get and fit bill
Is there a guide as to what's needed at certain power levels? I'll be aiming for 500hp (eventually, GT2871 first) and I've had a 2.0 stroker engine built but it's just got JE pistons and IE rods. Head wise it's an AGU head with +1mm Supertech valves. What else should I add to the shopping list? Head studs? It'll be running an IE inlet with R32 TB.
supertech valve springs.... ARP head bolts
not everyone will agree on the list of advised/required parts
Cheers bill - ARP main bolts too ?
do as Andrew has done, upgrade everything, it's what I have done too and will also be expecting over 500hp with my pte6262.
there is no point in building a high hp engine and scrimping on one or two parts.
and let's just be honest now, when you get to 500 are you really going to say that's enough
arp everything but don't buy from IE unless you have a big jar of lube