V2Rocket

this thread is approaching 6 years old...your budget limits couldnt be seen from outer space where we are now

333pg333

Last pics before they got pulled down and off to the coaters.

Spencer...you're so right.

ealoken

Budget is something you write AFTER the build, not before..

Duke

It would be nice to get the turbo on the header side but you would need to tilt the engine up completely and that would put the engine too tall and you would have to run a Hot Rodder scoop type of hood lol.

Fantastic work with the piping Patrick! This is now officially the mother of all 16v engines

I'm very interested in seeing the torque curve on this setup. There's 2 types of schools for turbo headers. On the one hand is this setup with as short primary pipes as possible and on the other hand is a long primary header setup with equal length pipes and a long merge collector. The latter will improve VE at higher rpms but over the full rpm range with a manual gearbox I'm sure the former (Pat's setup) will be more optimal. Can't wait to see the dyno!
What is the cam specs now again? (secret?)

333pg333

We didn't go to the 'length' you did on the headers Gustaf...sorry, pun intended. :-) It was more down to packaging and making things work with each other. Without CAD and CFD we're largely guessing and dealing with the constraints of the engine bay. In all hindsight now I might not have gone down this turbo and all the plumbing required's path but we're here now. Have a few more things to attend to while we wait for the intake, which in itself was a spur of the moment choice. I'm not expecting a 'perfect' motor but will be satisfied with pretty good. Much time and money was put into trying to make it last as much as extracting ultimate numbers from.

Some basic specs of the motor:

Engine 4 Cyl in line 4
Engine displacement 3240.30cc
Bore 104.75mm
Stroke 94.00mm
Max RPM 8800 RPM

Block Closed Deck
Deck Ht 229.997mm
Girdle Fully doweled

Crankshaft stock offset ground for added stroke
Stroke 94.00mm
Main journal dia 70.00mm
Rod journal dia 48.00mm

Connecting Rod Carrillo H Beam
BE bore 51.00mm
SE bore 21.00mm
CCL 152.00mm
Bolts 3/8” Carr

Piston CP Forged X102
Piston gauge dia 104.673mm
Comp Ht 30.886mm

Cylinder Head 968 ported
Valves 4/Cyl
Chamber vol 37.20cc
CR 8.78:1.0
Intake Valve dia 41.00mm
Exhaust valve dia 35.0mm
Gasket 5 layer Cometic
Sealing Garlock
Torque
1st stage 20 ft/lbs in factory seq wait 15 mins
2nd stage in reverse order loosen + 25ft/lbs wait 15 mins
3rd stage 90° wait 30 mins
4th stage 110°
Intake Camshaft
Seat duration 285° @ 0.014”
0.050” duration 253.5°
Gross lift 0.502”
Hot lash 0.014”
Net Valve lift 0.488”
Cold lash 0.011”
CL 114° ATDC
Final assy 114.50°
Exhaust Camshaft
Seat duration 276° @ 0.014”
0.050” duration 235.6°
Gross lift 0.443”
Hot lash 0.014”
Net Valve lift 0.429”
Cold lash 0.011”
CL 113° BTDC
Final assy 113°
Cam Followers Solid 35.00mm with lash cap
Pad style 0.112” thickness

ealoken

Just a question, what do you guys do regarding oil pickup?

ptuomov

You've got 360 degree separation between the exhaust pulses per side and a ton of length so by my logic you can run whatever cams you want. If there's an expansion in the pipe diameter at the first Y's, then I think you'll probably get a reflected wave back to help with pumping losses after the exhaust valve seat has gone subsonic. My guess is that your setup is effective - whether it's cost effective is another question! ;-)

Duke

It's a dry sumped engine.

V2Rocket

typically australian...
open your box of parts and it's full of snakes



looking at the "spec sheet" just posted how did you make 94mm stroke with a 48mm rod journal?
wouldnt that require welding and then grinding (48mm offset journal only gives you 4mm more stroke vs stock = 92)

gruhsy

152mm rods posted above yes? for the 94mm stroke

ealoken

I did notice, it was more a question to you guys with a lot of knowledge.

gruhsy

Patrick how does the space look where the two pipes attach to the turbo? I know that you don't have the steering shaft on that side of course.

333pg333

Dry sump doesn't run the same oil pickup system as a stock setup. In the past I did have a clever wet sump setup which had mods to the oil pickup and 4 trapdoors. There 'might' be pics of this somewhere in this thread. Good luck if you choose to accept that mission. :-)

Noahs944

Geezus man.... world class. I'm so impressed by your passion.

ehall

Great stuff, Patrick!