Jump to content
SAU Community

Recommended Posts

I have pulled my motor out to install some 6Boost Manifolds. I have found some issue's, most expected.

-OEM water and boost hard pipes that run beside the rocker cover don't fit

-OEM twin turbo pipe doesn't fit. I have a hard pipe kit here and will update you all if it works

-Manifolds aren't even. 4mm out. If I hold one up and then tighten I can get it down to 2mm. Not to bad but I hope my Front pipe fits ok

-Both manifolds just foul on the head. I will have to grind the head tabs down as I also need the clearance for heat wrap

There is no doubt these will make more power with better spool over my stainless items. I will be on the dyno to confirm

Matt

Pictures tell the story:

4cf66aa9.jpg

c9b4e905.jpg

8200f9fa.jpg

4d1a93cf.jpg

Link to comment
https://www.sau.com.au/forums/topic/355887-6boost-rb26dettt-manifold-install/
Share on other sites

  • Replies 161
  • Created
  • Last Reply

Top Posters In This Topic

Diameter wise - whats the internal of the pipe?

Just thinking if it's actually larger, will it hinder perhaps due to lower velocity etc?

The runners are certainly longer ye?

Be interesting to see results. Certainly a pain RE: OEM piping/lines, but given the length of the runners that would be unavoidable regardless

Diameter wise - whats the internal of the pipe?

Just thinking if it's actually larger, will it hinder perhaps due to lower velocity etc?

The runners are certainly longer ye?

Be interesting to see results. Certainly a pain RE: OEM piping/lines, but given the length of the runners that would be unavoidable regardless

The OD is ~42.5 same as my stainless mani's

The also are ~1.7times longer

Any gain will be amplified at my power levels so we should be able to see and get a accurate % for others to make a eductated decision if the install hastle and cost is worth the effort

Edited by BoostdR

Indeed, will be good to see.

1.7x longer is interesting.

Dyno might not show difference when loaded up in terms of response, you'll have to get some seat of pants action going :D

Pics of old manifold by chance?

Indeed, will be good to see.

1.7x longer is interesting.

Dyno might not show difference when loaded up in terms of response, you'll have to get some seat of pants action going :D

Pics of old manifold by chance?

e1312463.jpg

Wow didn't even know these existed. Can I ask:

1) Any dummy fitment done to see how these clear the strut towers etc?

2) the collector pipe - does it not fit by a little or is it just a completely different thing? ie is the hard pipe setup roughly similar in configuration to the OEM stuff, just some minor changes, or totally different? Just wondering if it's achievable for the DIYer (most of my inlet is now custom).

3) sorry if it's mentioned elsewhere, but what are the turbos?

4) is it intended that the mounting position of the turbos would enable the OEM y-pipe to connect up to the dumps? Or is completely different setup required?

1. clearance to the strut towers not an issue

2. No chance of fitting the twin turbo pipe. The hard pipe kit I have routes differently to the OEM..away from the rocker cover

3. GTRS

4. Front pipe is meant to be a direct fitment

post-49288-0-77962600-1299210203_thumb.jpg

You will need to modify your aftermarket 'twin turbo' pipe. The rear will foul the front manifold.

Front pipe will bolt in, no dramas there.

I had an issue with the stock rear o2 sensor fouling. That may have been due to the aftermarket dump pipes though.

Cheers,

Johno

how do you get 4mm out? if so your front pipe will be 4mm out to... in wghat dimention are they 4mm differant?

The turbo flange level (height) when mounted is 4mm different. One is higher than the other.

Update

I have ground about 2mm off my head tabs, now has enough clearance for the manifolds with heat wrap.

The manifold flanges are also threaded, why I don't know. They will have to drilled out to allow the turbo studs to poke through.

I have ordered some black braided stainless line and AN fittings for the water lines. I have also found a -6AN To 3/8 barb to join at the back of the Plenum. I will post up my order list soon.

Matt

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

    • Even more fun, leave all the ADAS stuff plugged in, but in different locations, hopefully avoid any codes!   And honestly, all these new cars with their weird electronics. Pull all the electronics out Duncan, and just shove an aftermarket ECU and if needed a trans controller in, along with a PDM. Make it run basic but race car styled!
    • To follow up a question from earlier too since I had the front bar off again (fking!) This is what is between the bumper and the drivers side wheel And this is the navigator side, only one thing but its a biggy! So basically....no putting coolers in the wheel arches without a lot of moving other stuff. Assuming I move to properly race prepping this car I'll take that job on and see how the computers respond to removing a whole bunch of ADAS modules
    • So I prepped the car for another track day on Wednesday (will be interesting to see coolant temps post flushing out and the larger reservoir, with a forecast of 3-14 being 20o cooler than last time I took it out). Couple of things to mention; since I am just driving the car and not taking a support vehicle, I took the rear seats out and just loaded the back up Team Trackday style. Look at all that space! To cover off removing the rear seat....it is weird (note the hybrid is probably different because it wouldn't have folding rear seats) Basically, you remove the lower seat base, very similar to a r series but it is a clip that pulls forward to release the base rather than it being bolted down. Easy Then, you need to remove the side section of the rear seat on each side. There is a 14mm head nut at the bottom of the side piece, the it slides upwards off a hook at the top to release; you also need to unhook the seatbelt from the loop at the top. Then the centre piece is weird. You need to release/fold the seats forward with the tab in the boot on each side From there, there are 2,x12mm headed bolts holding the rear of each seat to the folding bracket, under the trim between the rear seat and the boot (4x christmas tree clips there, they suck). The seat is out but you can see where the bolts attach to the bracket
    • As discussed in the previous post, the bushes in the 110 needed replacing. I took this opportunity to replace the castor bushes, the front lower control arm, lower the car and get the alignment dialled in with new tyres. I took it down to Alignment Motorsports on the GC to get this work done and also get more out of the Shockworks as I felt like I wasn't getting the full use out of them.  To cut a very long story short, it ended up being the case the passenger side castor arm wouldn't accept the brand new bush as the sleeve had worn badly enough to the point you could push the new bush in by hand and completely through. Trying a pair of TRD bushes didn't fix the issue either (I had originally gone with Hardrace bushes). We needed to urgently source another castor arm, and thankfully this was sourced and the guys at the shop worked on my car until 7pm on a Saturday to get everything done. The car rides a lot nicer now with the suspension dialled in properly. Lowered the car a little as well to suit the lower profile front tyres, and just bring the car down generally. Eternally thankful for the guys down at the shop to get the car sorted, we both pulled big favours from our contacts to get it done on the Saturday.  Also plugged in the new Stedi foglights into the S15, and even from a quick test in the garage I'm keen to see how they look out on the road. I had some concerns about the length of the LED body and whether it'd fit in the foglight housing but it's fine.  I've got a small window coming up next month where I'll likely get a little paint work done on the 110 to remove the rear wing, add a boot wing and roof wing, get the side skirt fixed up and colour match the little panel on the tail lights so that I can install some badges that I've kept in storage. I'm also tempted to put in a new pair of headlights on the 110.  Until then, here's some more pictures from Easter this year. 
    • I would put a fuel pressure gauge between the filter and the fuel rail, see if it's maintaining good fuel pressure at idle going up to the point when it stalls. Do you see any strange behavior in commanded fuel leading up to the point when it stalls? You might have to start going through the service manual and doing a long list of sensor tests if it's not the fuel system for whatever reason.
×
×
  • Create New...