I'm pretty sure that car you drove on Sunday has stock intake piping and throttle bodies, so you can have plenty of fun without going down that road...
This is also where I'm stuck on and tempted going to 58mm Throttle Bodies, F*CK this shit never ends! You improve one section of the design and you run into another poorly designed restriction. MoulaZX
60mm left, stock on the right. I thought the stockers were 2" but that is just off the top of my head. Some info on 60mm upgrade.
I swear I knew that was coming right after I hit submit... I didn't know it'd be that fast lol. (Go on, say it again :rofl MoulaZX
Not that poorly designed, plenty of big motors using those "small" throttle bodies and "small" 50mm intake pipes...
Really, what is the benefit of a 2.5" intake kit with 50mm throttle bodies? Even if you got 60mm, wouldn't a 60mm system be just as good?
So what are you going to do when you've changed everything in front of the motor? Are you going to extrude hone the upper and lower plenums? What about inside the motor? Cams? Valves? I will stop being a facetious prick now, but man unless you want to go all out don't waste your time and money chasing "cheap" cfm with bolt on parts on the front of the motor. I bet the factory intake system will outflow factoy heads.
No, bits and pieces of border kit, custom kit, mike smith intakes, custom in/out for FMIC... TB's... This one is though and this one has the big turbo intakes but factory after the turbo including factory throttle bodies
Hey Moula have you bought the 2.5 inch piping and throttle bodies yet? if not I 'll tell you a better set of upgrades for your current specs if you are on a budget
you've dug a big hole for yourself to fill ..lol you would've of been better off getting cams to make a complete built engine (because of your big heads and valves)... and left stock piping with twin intakes. This way you would never have to pull apart or take out your engine again and it would perform better. All the piping /throttle bodies,intercooler mods etc can be done with engine in at a later stage .. at the moment you have big ports/valves - little cams big piping -little throttle bodies ... nothing matches sorry..
What hole? All I have left to upgrade is two things, Cams & Throttle Bodies. Everything else is done. TBs are a joke to install, Cams will be the only downside, but I'm kinda curious to see what they can do to be honest. Plus I like the idea of them spooling a tad quicker then say the R4+. (Intercoolers will be 2.5" before they go back in, and yea I'm biting the bullet and getting the Selin kit with the next batch of goodies from Coz 2 weeks from now lol) MoulaZX
just a shame you are making yourself pull your engine apart again for cams , (not really a drop in upgrade) . HUGE ports and big valves may slow your spool up anyway without cams to suit them . don't get me wrong ..just would like to see you with a good balanced setup since you are going this far. be good to see the results though ..may test some theories out there..
Of all the people on this forum, I knew you were going to have the biggest issue with this, lol. No one else on here is so meticulous when it comes to designing a perfectly balanced system. True, I'll probably tear down the engine at some point in the future and go with bigger Cams, but the operable word there is "future", I'm guessing a good year away at least. Even with this build I'm dead certain will break 300 RWKW like a joke even on just 14 or 16 PSI if Sav's build is any indication. Thats a good 70 more then I am used to. Even if I wind it up to 20 PSI, thats probably what, 350 or more? When the hell am I ever going to really use it. It will be lighting up my tyres in 2nd gear and probably 3rd, with my current build. I will be hitting that point where to go any higher would have very little real world use. Thats why I'm sorta OK with it. You on the other hand... lol. You're even more OCD then I am and thats saying something... :rofl: Which is great, I respect that, and why I would take your word over most on here. And lastly, like you said, would be quite interesting in a year or so time, when I dyno back to back going from Standard Cams to R4+. MoulaZX
Its DUMB spending all that rebuild cash and NOT doing the cams while its apart. Its NOT just put the new cams in. Changing the springs etc is a PITA and should be done while the heads are off. You should get into the habit of thinking ahead rather than " I will do it later" that thinking usually costs money that could be spent on other things.
Seeing as the Head-work will cost me next to nothing, and the bulk of the labour is being done by me, no it won't cost me more to do it down the track and frankly I could put that extra $1500 right now elsewhere, not car related, as I've already gone over budget on this build. Again, even with this current build, I will never really be able to use the power on the road. Its not like I'm going from 120-240 RWKW... I'm going from 230 to well over 300. She felt twitchy with 230 and even then it was rare I could open her up properly. Little insulted by 'think ahead bit', clearly if I had the funds available I wouldn't 'skimp out', and having driven Sav's Zed which indeed did have the same Cams I will be using I would be over the moon to get a similar result (324 RWKW @ 16 PSI is nothing to sneeze at...). I guess if you didn't care you wouldn't have said anything so I guess I can take that away from your reply. To be honest, I've actually enjoyed this whole process of stripping her apart, and looking forward to putting it all back together, working on Zeds is as much as a hobby to me as driving them. Not really seeing it as such a pain in the ass... maybe I'm a masochist? MoulaZX
Easily. A thing you also need to remember with FI motors, is that alot of this, while certainly relevant, doesn't have the same benefits as it does with NA motors and it's really only on the outer edges of the compressors efficiency that these mods are going to see a big difference. By increasing the volumn of the intake, and the "flow" you'll see a larger volumne of air at a lower pressure, obviously because of less restriction. Inside the compressors efficiency range, you'll still achieve the same volumne of air but at a higher pressure (boooooost). With restrictive intakes, the compressor needs to work harder to deliver the same volumne of air, and this take time and produces heat. ie lag, and charge temps. So i guess what I'm rambling on about, is that, while important going for the perfect build, it needs to be weighed up with the type of build and "bang for buck".
Lower Plenums already match ported to Heads. Cams later down the track, if somehow I get bored with 300-350 RWKW. Valves being used are the Ferrea 1mm O/S What exactly have I wasted my time on here? Seems the only reason anyone here is miffed is because I left the Cams out of the equation for the time being. I really have no qualms about pulling the engine out a year or so from now and getting some better Springs & Cams to match, why is that so inconceivable to everyone? Unfortunately I'm not made of money and have plenty of commitments outside of the Zed. Yea, to some extent I'm trying to get a reliable 300+ RWKW build for low as possible, whats wrong with that? Everything aside, this is still going to be one very formidable engine a good deal more powerful then the majority on here. So what if I'm not chasing every last 'killawasp'. MoulaZX
