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the lack of material forming a direct load path between bearings significant this rod is obviously not for a high BMEP big bore engine which needs good compressive strength. i still think there is...

if they machined those teardrops and slots from bothsides and not all the way through leaving 2mm in the centre the stiffness (so it is has shear strength for carrying bending loads) would be alot...

if you look at pinnacles of competitive Motorsport with engines turning even much higher than this you dont see things like this. it looks like this rod was designed by someone who considered loads...

what dont you believe?

it's the mode that the manufacturers of dyno dynamics (DD) created for doing power runs (as shown on the graph in the legend). it locks in the ramp rate, as well as some of the correction factors and...

for those not aware multiply numbers by 0.80 to give values at the wheels for dyno dynamics shootout mode. so this would be 258whp to 265whp peak to peak

no i just prefer to use logic and reason not guestimates

oops i misread i thought he meant average over whole rpm not that used on a gear by gear basis.

if you are suggesting comparing a completely separate engine with similar specs to see the gain then that is funny.........im not going to waste my time arguing anymore

It is unlikely that the changes did nothing or went backwards but it is always nice to see tests on the same machine so it is as scientific as practical. there is just a lot of variability between...

yes the HPF one has both good pressure recovery (gradual diversion of the walls from the inlet) and presents a good chance for equal distribution to each cylinder which is harder on an I6 than most...

i dont agree with this average at all. you shift at the limiter except when power falls off past peak hp badly enough such that you'd have more power in the next higher gear.

you need to maximise...

the thread is specifically about the gain from a header + exhaust swap alone, my comment is in that context. we don't know the gain or even if it was again so it proves nothing with respect to this

if i understand correctly the comparison has been made using a dyno (mustang) known to read lower than a dynojet. the after graph is with a dyno with reputation for reading higher. so how much of the...

lol at using a mustang for the before and a dynojet after. if it is not run on the same machine it proves nothing

metricmechanic.com/product-prices/engines/m50-m50tu-s50-m52-s52/

3300 Rally OBDI or OBDII Engine: M50/M50tu/S50/S52 If you are looking for the biggest most powerful street/ track engine we offer...

i thought metric mechanic used a 93mm crank in their rally 3300 M50. i recall reading that it was a S54 crank (modified) somewhere but cant find where i saw it....

which part is not practical? Metric mechanic kits use a compression height of 23.4mm with their 3200 M20 engines many of which are driven on the street for many miles. i have also seen a few people...

being an inline 6 surely there is some flexibility in the counterweight radius and still being able to achieve a proper balance?

for instance i know there is a M52B28 crank with bigger...