Stigmata

Glad your happy with the cooler bud Let us know how much your mph improves

1800hp FG kit is 1995 bud

Yep we ended up fitting a fg plenum. Doing the work ute next week with standard BA plenum so will see how we go

Yeah bud have done this no probs. Relocated bat to passenger side. I ran the hot pipe up high like a fg and was much nicer I thought. Will be doing my work ute the same shortly. Not sure if that's what you meant about pipes?

Cheers Smackers, I know Steve very well. Havent caught up with him for a few years. Might be just the ticket, forgot all about his rollers. Been meaning to catch up with him too.

He tells me that's what Mainline have told him Mick?. To be honest I give up with him, just too hard, convenient but hard. Will go have a chat with Brett to suss some comparison runs

Just spoke with him again, he is unsure of what retarder he is running? Is certain it wont hold power I want, damn it.... may be nerves? Dont know.

Cheers butt plug lol. Will go have another chat with him. He reckons he was talking with mainline about it and they said 350 max? He mainly uses it for lpg tuning and is just going thru the process of approval for emission testing, like Steve Bell.

Hmmm the operator said it wont hold 400rwkw? Might have to have another chat with him.

Cheers Ratter, I know Martin and Brett quite well. Also have a newish mainline up where I am but it only has single retarder :( Joys of little old Adelaide. Will have a chat with boys at PWR today n see if I can get them independently tested in their F1 wind tunnel

Mine made 350 on 98, Simon at Morpowa sets them up very safe in regards to pump fuel and is very conservative in regards to timing as the quality of 98 can vary so much. E85 on other hand is diff story so far logged best of 446rwkw on 21psi. Got a couple more tricks to see if we can push it bit further. Hoping to have it back on rollers with new mods b4 Chrissy

Lol cheers Rab

Lol has it got that bad? Was living at Safety Beach years ago. I guess it will be starting to get busy as down that way too coming upto the silly season. Used to hate it at chrissy time. Take half n hour to get from Saftey beach to Dromana lol

Heres some pics of the core internals of a mates stepped cooler. Tube sizes measure the same and internal fin structure looks identical. Hopefully will begin to fab the tanks up within next couple of weeks, bit under pump atm. Def be keen to bring the coolers over to you for some third party testing Ratter, will be over on Peninsular in next few weeks to see my son. Will drop in and say hello. Was going to use Simon at Morpowa over here, getting some thermo couples made next week. Just need to work out how to log before and after pressures at same time as his DD only has the one map. Anyway will keep moving along with it

Nice Matty!! I gota do something about my trans cooler too. Hope you have a good trip bud

Bit better shot of the fins but still not best lighting.

Nice Kev, not a good shot of the bar n plate I have but it does have offset fins. Keen to supply a core to test bro?

Ok if you would like me to do that Arrom no problems at all. Will do a total volume check on both coolers once they have tanks on. If there are any other requests let me know anyone as I dont want to do this twice lol

Obviously internal volume is a direct reflection on flow area X the tube lengths given? External surface area is going to have to be close enough given the fin pitches are a non varible from both manufacturers.

Will be logging it all for sure. Don't want to miss anything.

Some more pics of them on scales

Okay so after lots of requests I have decided to run a back to back test between a bar and plate core and a tube and fin core. The bar and plate core was sourced from overseas, has internal offset fins, so is up with usual type being offered. Earlier bar and plate coolers didn't have offset internal fins but rather a straight pressed configuration. The offsetting of internal fins helps further the increase internal surface area which is so vital to efficient thermal transfer as well as helping turbulate the charge air. This is due to something called laminar flow which is another topic in itself. The tube and fin core being used is the latest offering from Europe with thin laser welded tubes and also an internal offset fin arrangement. Unlike many "extruded" tube designs which are rather heavy and are fast becoming dated. The bar and plate core measures in at 500mm x 430mm stacked height x 100mm thick The tube and fin measures in at 480mm x 430 x 100mm thick On the scales the tube and fin core is almost 5kg lighter than the bar and plate Bar and plate 12.5kg Tube and Fin 7.6kg The next most interesting thing is total flow area of the two cores. The bar and plate has 23 flow tubes, while the tube and fin has only 19. The flow area was calculated and I didn't expect this much of a difference to be honest Bar and Plate 107.525 cm2 of flow area Tube and Fin 178.695 cm2 of flow area This does become a very important factor in thermal exchange rates as it effects air speed throughout the coolers tubes. For obvious reasons thermal transfer rates are varied greatly by the amount of time the charge air spends within the coolers tubes to exchange thermal energy with the atmosphere. If the flow area is small then air speed is higher than that of a larger flow area where charge air will have more time for effective thermal transfer. Hope that makes sense Anyway here are some pics. This will take me a fair amount of time as I need to squeeze it all in between jobs. I will conduct a back to back test on the same vehicle on the same day with identical tanks on the coolers and keep the playing field as fair as possible logging before and after cooler temps, power etc etc. This test is not to be biased in anyway whatsoever as I am open to both types of cores. Each has their place and both have greatly different costs. Hope everyone can enjoy the write up

You will love it mate, you should see a good improvement in economy too

Good Job bud, Simon is an awesome tuner

Cheers Paul, should go good once Simon has finished with it. Im just waiting on some new cores to arrive from Europe to build a lightweight stepped cooler that will flow 1400hp. Spewin I didnt have it ready in time for ya. Let us know how it goes Kind regards Jon