Skepticism

I've got a set of these rare wheels for sale, ideal for anyone wanting to keep a classic 4-stud look for their S13 and in perfect offsets as well. It's in fact this very set: http://www.hardtuned...howtopic=468339 Note that I've linked the old photo from the previous post, because I'm a lazy shit and it's effort to take the wheels out of storage for new pics. I'm more than happy to take new ones for interested buyers, just let me know. Price: $1250 Located Sydney northern suburbs

Royal purple worked really well for me, particularly in my 4g63 the lifter noises went from unbearable to virtually silent. Not that much more $ for a street car changing every 6 months, but it's too exxy if you're doing track days every couple of months, lol. I'm switching to penrite 10/10ths and will see how that goes

sold..

Someone buy these fucking things, $320 nego

Set of 4 Federal RS-RR tyres, 255/35/R18, manufactured 2016 These have been used for two track days. Some minor graining visible, but otherwise good condition. $400, pickup from 2067.

What I noticed is that v2 looks to have worse efficiency overall, and especially at higher boost levels - 2.5 pressure ratio and above, which is >20psi give or take. The new maps also show a smidge of extra flow at the very far edges of the map, but it's unclear if that will translate into real life or if it just looks good. Therefore I'm sort of skeptical they'll make any extra power, if anything I'm worried they'll be worse than v1, in particular for 2L turbo engines on E85 and high boost. Suspect they're aimed at turbo-converted V8s on lower boost - mind that Garrett is also releasing reverse rotation variants for symmetrical twin turbo setups.

Agreed. Unfortunately these seem to be designed for bigger engines running lower boost. One look at the compressor map and you can see that the efficiency above 20psi is absolute balls. And actually the efficiency in general is sacrificed to an extent for meagre gains in flow at the top-end - so intake temps will be a tad warmer as well than the first-gen GTX.

I thought backing plates were good for thermals and kept fluid temps down? For a track car removing em wouldnt matter too much but for daily you get sick of going SQUEEEEEEEE every time u stop

29. Had my 180 for 4 years. I had plans on modding it, but it was too fucking stock and was such a nice daily that I sort of didn't want to. After looking at a few modded 180s and toying with getting a modded GTST, I wound up trying out an Evo VI and was pretty amazed at how much better it felt to drive - plus they're silly fast on track - so I got one with basic mods and ordered some MCAs. FD RX7 is what I really wanted but it's hard to find a good one, plus they're a tad expensive and will get pricier as time goes on, so not sure if I'll ever own one

270 is just a huge fkn cam, even 264 is a big cam for your setup - so your boost threshold would be cam limited for sure. You have far less VE at lower rpm and not enough exhaust flow/pressure for the turbo to spool up. It's fine if you're spinning up around 8000-8500rpm, but otherwise it shifts power too far into high rpm. By way of example, stock cams are good between

Worth mentioning that wider tyres with lower profiles are supposed to actually be somewhat worse for straight-line traction to a certain extent. Reason being that the tyre's contact patch doesn't actually get larger when going to wider tyres - it just gets longer laterally and shorter longitudinally. This aids cornering to a certain extent, with a corresponding minor loss in straight line traction. And of course, for track work, allows the tyre to be worked harder without heating up as much, hence why you start needing more rubber on the rear with increases in power, and on all 4 with the addition of aero bits and bobs. The other factor potentially worth consideration is that lower profile tyres are less comfy and wider tyres are more likely to hydroplane in wet conditions. So basically, physics tells us to prioritise compound 1st for street applications, and also that drag cars need *tall* tyres to maximise straight line traction (just look at top fuel cars). Soft semis in 205 will shit on ordinary tyres in 255 or even 305 for straight line pulls. Track work is another matter entirely.

Came to post cause Johnny told me I can say cunt now

It's all fun and games until a kid runs out into the road. Or a big fkn truck. Get some decent tyres. You can drift in the wet on RE002s with stock power and it's a hell of a lot less sketchy.

Lame, if anything I was wondering about the opposite problem, i.e. problems with compressor surge coming onto boost (small turbine

Awesome! Good luck on the tune! if you don't post results, I will track you down, I swear.