You guys asked me to put a topic here for the build of my new engine.
This is the plan, been collecting parts. Hope I have enough spare time to do this this summer.
76.4 DPR Counterweighted welded crank with 55mm taps (66mm Rod taps)
ADV performance 133mm H beam rods (22mm piston pen)
Deutz cilinders 100mm
Type 4 100mm JE pistons
Webcam 86b 108 degr lobe center
Thortsten Pieper type 1 cam followers(56gr)
Thortsten Pieper tapered push rods.
NOS 45 Dellorto carbs.
Will be using my current heads 42x36 (stainless steel 8mm stem valves).
30mm ADV oil pump.
Will try to update the built here.
Wanted to built a 4 inch engine (101.6mm) , but costs of machining the deutz cilinders and 4 inch pistons was a little bit to steep.
When i came across the 100mm JE pistons for cheap on e-bay.. the choice was made easy for me.
Oh I live in europe (The Netherlands) It will be in a Cal Look car...
already have a 2.0 type 4 engine (125 HP) own built with upright cooling in my car for 6 years.
Want a bit more HP
But Cal Look guys don t like type 4 engines... But I don t care.
Awesome build! That 76.4 DPR crank with 133mm ADV rods is a solid choice. The 100mm JE pistons and Webcam 86b should definitely give you that extra horsepower you're after. With those 45 Dellortos, you’ll be pulling some serious power! I bet that Cal Look setup will haul!
Last edited by Piledriver on Mon Dec 02, 2024 8:02 am, edited 1 time in total.
Addendum to Newtons first law:
zero vehicles on jackstands, square gets a fresh 090 and 1911, cabby gets a blower.
EZ3.6 Vanagon after that.(mounted, needs everything finished) then Creamsicle.
Maybe you guys saw this on facebook.
Had the heads equiped with valves and some porting by Johannes.
Not going to use this in 2025, Riding the set uop that I have a year, because did not drive it this year because of the damage.
Car is fixed now and back in my garage.
Just a question, there is to much info on extra oil coolers.
My engine runs a bit to high on oil temp in my opion. It runs on highways about 115 degree celsius.
I like to get this to about 100 degree celsius.. So thinking on a remote oi cooler but there is to much info on how to incorperate one.
What is the best in your guys opinion. Have now only a type 4 in a doghouse type 1 set up.
Thanks in advance
I run 2 well shrouded coolers with thermo fans off a Mocal thermostat sandwich plate above the oil filter no other cooler . The coolers are on either side of the trans and out of air flow . That way the oil temp is controlled by the thermostat and thermo fans .
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On a well tuned engine, excess heat is related to sustained higher loads, like cruising at 80mph takes more power than stock so creates more heat than the stock cooling design capacity (or 70mph in a brick shaped bus).
I suspect (not tested!) adding a type 4 cooler to a doghouse shroud doesn’t make much difference because the air channel directing flow from the fan is designed to match the type1 cooler cross section. I had an idea to take a stock doghouse shroud and redirect one of the heat exchanger ducts into the cooler shroud to increase the air flow to a T4 cooler conversion.
If that isn’t enough then adding an external thermostat & cooler would be my next step.
Keep the flow on the oil cooler path like stock, additional cooler should be full flow. I suggest plugging the bypass in the stock filter housing (from memory a US dime is a press fit) put a thermostatic bypass on it and use a remote cooler, or machine up a simple replacement block for the filter location with decent size in/out fittings and go remote on filter and cooler, with the thermostat bypass on the remote filter mount.
Addendum to Newtons first law:
zero vehicles on jackstands, square gets a fresh 090 and 1911, cabby gets a blower.
EZ3.6 Vanagon after that.(mounted, needs everything finished) then Creamsicle.
Wreck nice set up you have, only thing is I have a Turbo Thomas header, which does not alow me to use a sandwich termostat to a cooler,
than the oilfilter will not fit. Which is shitty. (love your return lines from the head to the case)
Bruce, I am not familiar with this set up.. do you have a picture of this.
Pile, I use the original oilcooler location for a thermostat to the oilcooler in the shroud.
I think I wil go with the remote oilfilter and cooler set up. have to figure this out.
Inside the late model doghouse shroud, the air flow to the oil cooler is collected via a shallow slot on the right side (marked in blue). I suspect that is sized for the type1 cooler and extending the cooler doghouse on the other side is still limited to the airflow from that slot.
My untested idea is to add an extra outlet, perhaps in the area marked in green since I don’t use heat exchangers and repurpose the air flow directed towards the heat exchanger outlet (far left air channel) into the oil cooler intake.
The t4 cooler will have lower restriction than the t1 cooler if fitted, and the result will be higher airflow...
Just the same as a t1 fan blowing through a t4 motor with a larger path flows more air than it did on a T1.
Addendum to Newtons first law:
zero vehicles on jackstands, square gets a fresh 090 and 1911, cabby gets a blower.
EZ3.6 Vanagon after that.(mounted, needs everything finished) then Creamsicle.
Bruce.m wrote: ↑Tue Jan 14, 2025 2:49 am
My untested idea is to add an extra outlet, perhaps in the area marked in green since I don’t use heat exchangers and repurpose the air flow directed towards the heat exchanger outlet (far left air channel) into the oil cooler intake.
That is essentially what Jake Raby's DTM shroud does. It redirects additional air from the underside of the fan (past your blue line) via a hose to an inlet on the top of the shroud (your green line) to feed the larger T4 cooler. Also, its offset design redirects the air 'Down the Middle' of the cylinders on each side.
