Jump to content
SAU Community

Recommended Posts

So I got a couple more pictures. Some of an adapter so I can run my standard TPS on the new billet v8 throttle body. The picture wont show the TPS as I left it at work. But its bascially an extended drive that slips over the throttle bodies one and the aluminium adapter plate sits around it so the std TPS can bolt on top and be driven by the new extension. Looks pretty damn good and saved me finding a ford style tps and wiring it in.

Tonight I got a little bit of the intake done. Ran into problems with it at the start. Couldnt run it at the intended width as it was going to leave almost next to no room to run cylinder 2 and 3 primaries out and up. So the way its made now should solve that.

post-12828-1270132944_thumb.jpg

post-12828-1270133014_thumb.jpg

post-12828-1270133080_thumb.jpg

post-12828-1270133141_thumb.jpg

post-12828-1270133179_thumb.jpg

post-12828-1270133246_thumb.jpg

post-12828-1270133298_thumb.jpg

Tomorrow is another day and hopefully I will get the intake done. Well its after 1am, so perhaps today!

Easter break was utterly hopeless. Got next to nothing done. But I do hope everyone had a great break!

However, intake is fully tacked together right upto throttle body flange. So a couple of hours of welding and abit of cleaning up and it will be done!

post-12828-1270641911_thumb.jpg

post-12828-1270642023_thumb.jpg

post-12828-1270642258_thumb.jpg

It was quite difficult and as a result very time consuming/frustrating. Just the pipework for this intake to get upto this point now is something silly like 15hrs. Could very well be a 20hr long item by the time its fully done. Oval pipework which reduces in size is a royal PITA! It steps down from 4" to 2.5" in that last stretch to suit the throttle body flange.

Some more good news I should be getting the new 1000cc ID injectors and 2 x 044 pumps delivered tomorrow hoorah!

wow... that looks fantastic! completely different from anything else. i wonder if putting the tb so far away will create some lag? as the piping, cooler and plenum will not be pressurised when you put your foot down?

cant wait to see this up and running.

cheers, Rowdy.

wow... that looks fantastic! completely different from anything else. i wonder if putting the tb so far away will create some lag? as the piping, cooler and plenum will not be pressurised when you put your foot down?

cant wait to see this up and running.

cheers, Rowdy.

Thanks :P

Yeh thats very possible. My old man has suggested the same idea and I have mulled it over myself. I guess I will find out when its done.

Initially I was planning on leaving the TB in its standard position. However Sprintex told me I should put it before the supercharger and various books and info ive come across have told me the samething. Hopefully they are right and its in an ideal/optimum spot.

Awesome work, really interested in the outcome. Low down power should be wicked. :blink:

Your fab work looks very well done, thanks for documenting the process.

I think you could have the throttle after the charger as long as the bypass opens up and stops the outlet pressure from spiking on throttle closure and lets it freewheel when you are at idle or cruising. I'm no expert though. Did they say why the throttle should be in front?

Yeh I read my supercharger book again and its informed me you need the bypass and throttle setup in that position so at idle and light throttle, where there is no boost the bypass lets air skip past the supercharger or else the supercharger just heats up the air and attached piping/ic unnecessarily which is no good for when you do put your foot down as there is alot of residual heat which shouldnt be there. It did also mention that throttle response is slightly dulled, but apparently its not that bad.

Im not totally positive why you couldnt just leave it in its std spot and then just have the bypass setup so it still does its job properly. But Im not an expert on this either, so I just did what was suggested to me by people who are and hopefully their advice works.

Got the intake fully welded, still needs to be cleaned up inside though. Welded in pipe for the bypass valve on intake side and welded bypass valve plate to supercharger outlet. Did some dummy fitting with radiator and shroud to make sure it all fits ok. Everything is looking good so far!

Still got the boost control valve to go in and gotta sikaflex in the afm and then hopefully I will be starting the exhaust! If all goes to plan I should have all my mandrel bends made by the end of the week. Fingers crossed!

post-12828-1271076935_thumb.jpg

post-12828-1271076991_thumb.jpg

That is sort of what it looks like now.

Thanks. Lol I know. Im pretty damn keen to hear it too.

Did abit more tonight. I welded in my boost control valve and then started on my fuel system.

I got the surge tank fabricated with -8 fittings. I cut a mounting plate for it and the pumps also. Then the nights over and that was about 3.5 hrs worth.

post-12828-1271161444_thumb.jpg

post-12828-1271163311_thumb.jpg

post-12828-1271163680_thumb.jpg

Edited by r33_racer

Some excellent work in this thread, i'd put the TB between the the charger and the plenum personally, but from what i have seen the simpler setup is to have it set up as you do, and you certainly have a lot of welding invested in that setup.

what's Nissan's designation letter for a supercharger out of interest?

i'm still trying to work out the geared drive arrangement on that charger, i take it the counter driven screw spins at ~ twice the speed of the driven screw?

I'd definatly stick the the TB before the blower...look at every positive displacement blower setup on a car whether its OEM or aftermarket they all have the TB before the blower.

I dont knwo of any by-pass valve that would flow enough to keep a blower like that happy....if it were a centrifugal blower like a vortech or powerdyne etc than you would run the throttle body like normal as they barely shift any air at low engine speeds

Thanks Will! There is a shitload of welding involved in that intake/tb setup. If i were doing it again I would do more research into seeing if I could run it as you say to save the amount of fab work involved in it.

Im not sure on the designation for it, but I think Duncan mentioned it back on the first page.

I think the counter driven screw is 1.5 times the driven screw. Well one shaft has 4 lobes and the other 6 from memory, but will have to check that.

yeah sounds about right, i wonder why they run at different speeds, I've never really considered superchargers before but have always wanted to twincharge something.

Looks like the designation is R, so it would be an RB25DER if you believe in renaming engines that never existed :D

oh yeah, dunno if you have seen this vid before but there is a link to their build, might be useful. they have put the TB after the charger but i would still leave yours where it is. (now i check it someone already posted the link to that build diary)

i can still remember the sound 4AGZEs (supercharged 1.6 litre toyota motors) make, its like a 3 pitch tone, sounds totally awesome, though rumour has it they make that sound when they are out of gear oil, so not the best sound to hear.

Edited by SRX720

Yeh twincharging would be the way to go. One of the 2.8L jobs to get you to about 800-900hp and then throw a 2000hp turbo of some kind to take over. I can envisage big power with not so terrible amounts of lag. Would just be a nice big painful experience fitting it all in and engineering it so it works nice.

StockyMcstock did it ages ago and I was fortunate enough to go for a spin in it and it was insane. Though it wasnt that exact combination. I think it was a small eatons with a gt40 on a fandangled steampipe manifold he made himself. It is a fancy setup and worked a treat! It was damp or rainy that morning and it was quite loose!

I should make a fancy coil pack cover with the new designation on it....mmmmm Cheers for the idea Will!

Yeh ive seen that video and the whole build thread on the GTR UK forums and on a couple of others they posted it on. It was their build that inspired me to actually look into this in the first place. Abit of research into these superchargers and I got sucked right in!

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • I mean, I got two VASS engineers to refuse to cert my own coilovers stating those very laws. Appendix B makes it pretty clear what it considers 'Variable Suspension' to be. In my lived experience they can't certify something that isn't actually in the list as something that requires certification. In the VASS engineering checklist they have to complete (LS3/NCOP11) and sign on there is nothing there. All the references inside NCOP11 state that if it's variable by the driver that height needs to maintain 100mm while the car is in motion. It states the car is lowered lowering blocks and other types of things are acceptable. Dialling out a shock is about as 'user adjustable' as changing any other suspension component lol. I wanted to have it signed off to dissuade HWP and RWC testers to state the suspension is legal to avoid having this discussion with them. The real problem is that Police and RWC/Pink/Blue slip people will say it needs engineering, and the engineers will state it doesn't need engineering. It is hugely irritating when aforementioned people get all "i know the rules mate feck off" when they don't, and the actual engineers are pleasant as all hell and do know the rules. Cars failing RWC for things that aren't listed in the RWC requirements is another thing here entirely!
    • I don't. I mean, mine's not a GTR, but it is a 32 with a lot of GTR stuff on it. But regardless, I typically buy from local suppliers. Getting stuff from Japan is seldom worth the pain. Buying from RHDJapan usually ends up in the final total of your basket being about double what you thought it would be, after all the bullshit fees and such are added on.
    • The hydrocarbon component of E10 can be shittier, and is in fact, shittier, than that used in normal 91RON fuel. That's because the octane boost provided by the ethanol allows them to use stuff that doesn't make the grade without the help. The 1c/L saving typically available on E10 is going to be massively overridden by the increased consumption caused by the ethanol and the crappier HC (ie the HCs will be less dense, meaning that there will definitely be less energy per unit volume than for more dense HCs). That is one of the reasons why P98 will return better fuel consumption than 91 does, even with the ignition timing completely fixed. There is more energy per unit volume because the HCs used in 98 are higher density than in the lawnmower fuel.
    • No, I'd suggest that that is the checklist for pneumatic/hydraulic adjustable systems. I would say, based on my years of reading and complying with Australian Standards and similar regulations, that the narrow interpretation of Clause 3.2 b would be the preferred/expected/intended one, by the author, and those using the standard. Wishful thinking need not apply.
    • Yes they do. For some maybe. But for those used the most by abusers, ie Skylines, the numbers are known. The stock eyebrow height for R32/3 Skylines is about 365/375mm or thereabouts. The minimum such heights are recorded in adjacent columns in the database.
×
×
  • Create New...