Rolls

Don't falcons use the same gt35 with a 1.06 rear and make 400rwkw all day with a 4L motor without cooking them?

Why is that?

No other options to control the heat?

Do you know the cause?

both with race autos with large stallys and slicks? the one with more hp one awd and one rwd? absolutely no way to tell

RB30 flywheels are identical to rb20/25/26 flywheels from what I know. I used an rb30 one in my rb20, only issue is redtop rb20dets rb20ets and some other odd varieties have a smaller flywheel, however you can still use the rb30 flywheel providing you have a run of the mill 20/25/26 clutch kit.

I doubt many people do use them but here is a 12 axis one

rb26 > rb25 > sr20 > rb20 the sr beats them all for size and weight though. Seriously the rb20 is bigger, weighs more, makes less power and torque for any given turbo combination, it's only advantage is it sounds brilliant and will hold together at extended high revs for longer. rb30e pump works as well from what ive heard.

we all told you it was almost certainly the fuel pump or injectors...

They can CNC an entire engine block out of billet these days with those new 10 axis CNC machines so I am sure that is possible, not that you would do it because its so expensive but it can be done.

Interesting I heard it was in the realm of $10k for a container from just Japan, perhaps prices have changed a lot.

I would just pay the money for someone who can use a CNC style boring/honing machine along with torquing up the block correctly, too much guess work with a human I mean you want it to be better than stock don't you?

er I meant boring lol assuming the block needs it to match your pistons and get clearances right.

yeah in the psychological scene with medical illnesses like depression etc it is so hard to prove something works that there is great area where profit can be made without actually helping anyone. this thread sure went off topic lol edit: great read! The fact that people like this exist and have a large audience shows that we have hope lol

you do realise to do honing etc you need a special machine?

no line would make it more than spike, 30psi here we come!

and that is why I posted this thread to see if anyone had a deeper understanding and could tell me that...

lol what bad did al gore ever do?

except that no one actually takes their research seriously and most of it has been totally decimated by the scientific community, much like the scientists working for big tobacco to do studies on how 'good' it was for you back in the 70s

agreed, scientists do not base anything on profit, any scientist of worth has his results reviewed in a peer reviewed journal, so if they are biased due to him getting paid more all his colleagues will call him out on it, his paper will be rubbished and so will his career, basically it almost never happens, and when it does no one ever takes them seriously again.

yeah I use my eboost street to control the rev range, just wanted to know the actual physical operation to see if you could increase the gap between x and y to cause it to shift further or less, or whether it is dependent on oil pressure and in that case you could PWM a solenoid so that it can be adjust between fully open and closed.

I'm curious how the VCT on rb25s physically works, from what I gather when the solenoid is on it allows oil pressure to reach a part of the cam and essentially changes the cam timing much like a cam gear does. Would it be possible to effectively tune this for different operation, eg changing how much it does retard/advance the cam so that you can get even more advance, then just shut it off around 3500rpm instead of 5000 rpm? Would be much better than cam gears as you could only activate it for whatever part of the rev range it is effective, instead of shifting the entire curve either compromising low down power or high end power.

Problem is if you do that (artificially reducing the profile of the comp wheel) then you push less air into the engine and hence make less torque on the exhaust wheel, you also spin it harder for any specific air flow causing it to top out earlier, be better just using a smaller wheel, get the same effects, comes onto boost sooner but tops out earlier as well. Fairly sure your results with the surge slots confirmed this, came onto boost easier but topped out earlier with less peak power? The only way I can see it working is if the surge slots are only effective at low rpm and don't leak air at higher rpm, could do something similar with a bov that purposely leaks on low load but it is all starting to sound very tricky.

Yeah I think people do always on always off comparisons then turn it on/off where the graphs overlap, eg turn on just above idle as it always makes more power down low and then turn it off around 5500rpm or wherever it is starting to suck power. I'm pretty sure the vipec can turn it on/off at any setpoints. Don't know why all the rb30 guys get rid of it, sure it might be extra work and f**king around but the difference in huge, eg 500rpm taken off turbo lag and a solid 20kw before that.

yeah and you will still have to pay someone to torque the block with a torque plate and do the homing for you, then you'll have to measure everything VERY precisely to get the clearances right, checking weights etc, this isn't something you will get right with backyard tools especially the first time, my mate tried rebuilding gemini motors to get some practice (same idea as you) and they all either smoked from poor clearances or they rattled loose in a few weeks doing big ends etc, ok when you only spent $300 on a gemini motor, not ok when you spent $5k on brand name RB parts. it sounds bad but I can almost guarantee you will butcher your first motor due to a simple mistake or poor tools