Don Terrill’s Speed-Talk

I heard about a showmobile World Champion .. assemble> startup launch WOT don't let off for 20 minutes )

Thank you all for the replies, The car is used for rallying here in the UK and some tight and awkward parts of the stages require the use of the lower part of the rpm range I listed. I feel I currently have room for improvement here and hopefully higher up the rpm range with a more appropriately si...

Spend a few bucks on pipemax it will be pretty close. Next step up would be to get a full set of measurements of the entire engine/induction system and then use something like EngMod4T. That is pretty good at predicting the effect of small changes to the whole curve.Ideally you should have some dyno...

I'm going to be awfully dull :) If not horribly worn and properly laterally and axially supported it should be relatively ok. Measure slop in the gear engagement as well as in all axis and work from there. Axial play also translates in timing changes with a helical gear. If that is all over the plac...

additional : if is manual adjustment try setting them full tight, then using a big rubber mallet to whack it like you mean it all around then it generally is lose again. Repeat for a few rounds.There should be enough braking pressure to get a decent contact unless it is a mile off once everything is...

As I have said ... IF it is a dry sump, then an oil pump with a centrifuge section will help a lot. it's not dry sump. it's basically a large aluminum sump with the gears added instead of the normal sump in the inline version of the engine. I don't know if it is a wide spread problem. Mini Migs run...

https://www.minimania.com/part/MIN500/T ... i-Cooper-S
7-ent has a version as well and when you dust of your cad skills and send the file to send cut send you well get something similar for less than $100.

This is not F1. you are not doing any harmonic tuning or ram charging. You are just getting nicely dense air to the air filter with minimal resistance. Whatever is on that end will not make a huge difference. Any radius is better than no radius and any 1/2 donut ring would probably be fine so take t...

Agree with BCjohnny I don't think it matters much. I would check the passages at the block and oil pump for casting mishaps, maybe clean that up. Check if bearing holes align. Just get the basics right. I would mostly build the whole spec down to <7500 redline

https://asmedigitalcollection.asme.org/fluidsengineering/article-abstract/72/6/825/1143726/Turbulence-in-High-Speed-Journal-Bearings?redirectedFrom=fulltext in the end of the paper they have some minor references that by using only one oil port the laminar flow was greatly extended and a reference t...

The Rimac Nevera does it in 8.6 and apparently is fine to potter about in, the weird and wonderful McMurtry Speirling did a 7.97 on normal race track asphalt using 2wd (but 2 tons of fan downforce) it's absolutely silly.

@hydrolastic It's an old thread but still there's good information to be found here.

http://russellengineering.com.au/projec ... gine-pt-1/

I hinted at doing the basics first . I don't know anything of these engines. does the nr1 cylinder tend to run richer ?

hi,
asking for someone
65 barracuda with a slant 6 needs a proper tune in/near Seattle.

is there any shops left there that able to do this ?

Thanks

JM

I looked it there was something that would help within the OpenFoam CFD framework but it's all hideously complicated