Clevo120Y

Yeah I'm poor too hahaha, that's why I spend my time trying to find cheap horsepower.

That's awesome Jase, must be time for port work then

Thanks for road testing the idea wagon, it's one thing to show improvement on the bench but a test on a road going car is awesome, we found on the race car it wanted to keep pulling higher in the rev range like you described, goes to show the stock housing is holding them back.

The bonnet would be the limitation mate.

Thanks mate, just saved me time looking for these

There is a GM truck element from K&N that was perfect but I can't find the details, it was 12mm taller than the stock XF element.

Probably both, mainly it opens up more surface area to draw air from. When I just removed the rubber sealing ring from the edge of lid it didn't sit any higher but flowed more air because it could pull air past were the sealing ring used to be, so that tells me that the housing in stock form is very restrictive, you can feel a lot of air being pulled through the small gap so raising it further was the next step. The best thing to do would be to find an aircleaner element that was slightly taller but the same circumference as the original, that way you would get the extra height and extra element surface area.

No worries mate, I'm actually going to start these heads today LOL

I did some flow testing today with the aircleaner lid like talked about before, in my opinion DO NOT RUN THE LID UPSIDE DOWN.

First pic is the test with the lid the normal way with the rubber sealing ring removed.

Then with lid flipped upside down. This doesn't seal very well against the element anyway so that's another reason I wouldn't do it, also the bulge above the carb that's pressed into the lid is now facing down and takes height away between the top of the carb and lid.

Here are some pics of the stock intake and exhaust ports.

Intake

Exhaust

Chamber

Stock open chamber 2V's

                            IN                      EX

050                    30.72                 18.77

100                    60.46                 46

150                    89.86                 71.14

200                   116.8                  89.58

250                   144.57               104.35

300                   167.29               120.14

350                   182.56               130.33

400                   191.22               141.57

450                   199.82               149.04

500                   198.32               154.82

550                   200.49               158.25

600                   201.49               162.6

650                   201.46               163.41

So much of a muchness between OC and CC really.

Wayne Smith from "performance carb tuning" in Perth is the owner and the guy who put it together.

Hopefully today Tony

Good shit Clevo , Go the 302! Love a nice looking 5L. Hope ya doing well down there and didn't get too flooded last week. 120mm here in 6 hours.... spare ute almost floated away.... hehe.

 

Jack.

Wasn't too bad down here mate, first decent rain for a while, mostly on and off dribble for months.

Rear wheel as far as I know, comes up on the converter right in the fat spot.

How the fuck did I miss this thread??? Loved the old Beacon as you know so excited to see the new one coming along mate.

Found out today that the little 302 pulled 750NM or 555 ft/lbs of torque at the rears, that's fair grunt.

^^^ flipping the aircleaner lid I haven't flow tested yet, I would think that the bulge in the lid being closer to the carb top might be a problem but can't say until I test it.

The AFR's stayed exactly the same when we tried it, but a basic tune and some timing adjustments could be changed to hunt for the sweet spot.

Pulling air from the intake side is the idea as it will be cooler, plus if you have the cold air ducting still plumbed up it will keep the housing reasonably cool, the original housing is so restrictive even at a test pressure of 28in that a running engine that pulls a lot more than that is choked badly, so the extra air outways the temp of the air in this case by a long way.

This aircleaner mod has been track tested and improved lap times from 20.2sec  to  19.4sec with a 4kmh top speed increase which is a fair improvement.

Also I will dig out an open chamber head and chuck it on the bench for you Tony, I don't expect a big difference between the 2, maybe a little more low lift flow.

No worries mate, yeah the bowl work will work wonders and getting the throat out to the 89% range will increase flow as the throat really tappers in quite a lot. Will keep you posted on the heads next week.

Stock 2V closed chamber heads

                  IN                    EX

050            30.91               17.82

100            62.69               48.32

150            90.54               74.63

200           120.97              87.25

250           149.8               100.63

300           171.91             113.32

350           179.75             125.35

400           189.08             134.06

450           191.84             144.45

500           199.01             153.8

550           201.46             160.72

600           204.22             162.47

650           204.37             160.52

700           202.93             161.37

Tested at 28in depression

Yeah mate will post up pics for sure.