More exciting performance news
#21
@Count Iblis,
The 4.2 SC range rover versions do have a different exhaust manifold, from the outside it is a bit camouflaged, but the inside looks like a triple y system. That particular engine has some more changes that would suggest that it could deliver more hp, but Land rover iirc kept the jaguar performance specs in the sales brochures. But now my question, have you been involved in this manifold? Or do you know who has? It would be interesting to hear what the measured effects where.
The 4.2 SC range rover versions do have a different exhaust manifold, from the outside it is a bit camouflaged, but the inside looks like a triple y system. That particular engine has some more changes that would suggest that it could deliver more hp, but Land rover iirc kept the jaguar performance specs in the sales brochures. But now my question, have you been involved in this manifold? Or do you know who has? It would be interesting to hear what the measured effects where.
#22
The tri-Y or split log arrangement on the S/C engine, provided it is of sufficient sectional diameter for the volume throughput of exhuast gases will provide an appreciable gain, regardless of what power curve was claimed by Land Rover. The split log arrangement tends to favour low end torque most while lowering back pressure of the system will favour top end performance
#24
#25
#26
Not top end meaning top speed you twit, TOP END aka the top of the RPM band 4000+ to redline which is what we are talking about here, the equal length headers will help in that area.
I am not one for trying to go 180mph
#27
Now who is implying I would , 180mph is of course not on my list either.
But 300km/h is, and I think 310 km/h would probably be about the max with my gearbox/diff ratio/tire setup. Unfortunately this is not allowed on the relative safe oval tracks I know as I don't have a racing license, but I luckily I could try this on the public road towards the track in germany , if I could only overcome the fact that there are people waiting for me at home .
So for now it's only the enjoyment of top end power range as mentiojned by xjr-0220 in lower gears
But 300km/h is, and I think 310 km/h would probably be about the max with my gearbox/diff ratio/tire setup. Unfortunately this is not allowed on the relative safe oval tracks I know as I don't have a racing license, but I luckily I could try this on the public road towards the track in germany , if I could only overcome the fact that there are people waiting for me at home .
So for now it's only the enjoyment of top end power range as mentiojned by xjr-0220 in lower gears
#29
And, I hope the Europeans have more class than to even know what a tractor pull is!
#30
No its not always in the top end but when Im racing I never drop below 4000 rpms so if I can make most my gains from something in the upper rpm band I will take that everytime as that will give me the most improvement in acceleration and 1/4 but I do have a nice cummins powered diesel that makes 670 hp and over 1000 rwtq if I want to play tractor hahaha
#31
That's where the whole concept of downshifting comes in to play and all those gears in the transmission. You need higher rpm, downshift a gear or two and just like that, you're in top end power. The rpms don't fall below about 4k anyways during WOT acceleration.
#32
#34
say, Adam. How did you determine that? There have been a few reports of that here, but they usually start with a question like "what happens if I find no oil on my dipstick?"
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