Jump to content
SAU Community

Recommended Posts

Looking on Spool imports site I see they list a complete RB34 short engine, block, crank and pistons etc etc

Has anyone got one and what do you think of it and the build work done?

btw, for use with RB25/34 road/drag use

cheers

They used to have a video on their site of one a dyno making about 900hp but haven't seen anyone actually post one up here.

Link to comment
https://www.sau.com.au/forums/topic/457460-spool-34/#findComment-7550239
Share on other sites

Cheers, from what Spool have told me that bottom end is good for 8 - 9k rpm limit

But what head would peeps recommend using between the 2.5 GTST head and the Neo head for a 3.4 conversion?

To make full use of that rev capability I have the option of using my current RB25/30 GTST s1 head with Tomie pon cams but still on hydraulic lifters. That I've been advised (and used) 7.6k as a limit and believe it shouldn't be reved higher?

Or go buy and build it with a neo head and high lift cams to make full use of the bottom ends rev range

26 head is out as none of my ancillaries are going to fit. Any other options other then convert my GTST head to solid ?

Link to comment
https://www.sau.com.au/forums/topic/457460-spool-34/#findComment-7550875
Share on other sites

atm I am using a T3 bb GT35 but with a 1.06 exhaust housing. If that will now be undersized I don't know? But when it was mapped as a 3.0 it wanting to keep making power past its 7.6k rpm (safe) limit so maybe not?

As for the rev range yes it seemed odd but as they don't know 100% what I will be bolting onto it that's maybe why?

I haven't got a problem with that, more that I am happy I know a safe range ... or max when built

Yes the head needs to be right and be able to run to the bottom ends limit

Link to comment
https://www.sau.com.au/forums/topic/457460-spool-34/#findComment-7551093
Share on other sites

A GT35 will have epic response on a 3.4L certainly wouldn't be testing the bottom end of the spool kit. Nor would i think it'd warrant a big $$$ head either.

I'd imagine a GT35 falling off around or probably before 7K.

Depending on what exactly your plans are for the car maybe start looking for something like a 6466?

Link to comment
https://www.sau.com.au/forums/topic/457460-spool-34/#findComment-7551129
Share on other sites

As above I can only repeat what I was told by the dyno operator re it still making power all the way to its redline of 7.6kI

it would have reved on and made more if it wasn't for the hydraulic lifters

btw this is a sunday toy and for occasional drag strip use hence wanting the spec

Link to comment
https://www.sau.com.au/forums/topic/457460-spool-34/#findComment-7551370
Share on other sites

Sounds like a bit of a greek salad.

Your going to the trouble of selecting a 3.4L for a drag build and then talking about limiting it with the head and turbo.

For drag, RPMs can help with the power up top, turbo needs to run up there and not be restrictive in housing.

Big lift cams and big turbo housing can get you some serious MPH but will sacrifice streetability.

The other thing is rod stroke ratio and piston speeds if your going to rev a 3.4L hard.

Get yourself a RB30, forget about stroking it and go from there.......your not in the zone for a stroker.

25/30, forged bottom end, bit of head work, right cams and turbo and your there without the stroker expense, if it blows its not so much of a money pit and cheap to rebuild/replace.

Link to comment
https://www.sau.com.au/forums/topic/457460-spool-34/#findComment-7551401
Share on other sites

No I don't want to limit it with turbo or head but just thoughts on what would be the better way to go?

Maybe there isn't? If I stay with a GTST it will cost to get the head converted to solid and new cams

Or if I went neo it will cost again for cams and a head.

Both might end up about the same?

Yes I use the car up the strip but its not going to be an out and out drag engine, as I still drive it as a day to day car (when its not raining lol)

Will see what turns up anyway as neo heads aren't that easy to come by by the looks of it either

Link to comment
https://www.sau.com.au/forums/topic/457460-spool-34/#findComment-7551412
Share on other sites

No I don't want to limit it with turbo or head but just thoughts on what would be the better way to go?

Maybe there isn't? If I stay with a GTST it will cost to get the head converted to solid and new cams

Or if I went neo it will cost again for cams and a head.

Both might end up about the same?

Yes I use the car up the strip but its not going to be an out and out drag engine, as I still drive it as a day to day car (when its not raining lol)

Will see what turns up anyway as neo heads aren't that easy to come by by the looks of it either

Neo head with a shim under conversion is on par with a 26 generally.

Gt35 does not seem big enough to warrant a 3.4

6466 is a great combo for a 3l.

You should make 500kw + (e85) never have to worry about how high your limiter is.

Save the extra from the stroker crank, put it into the head.

Link to comment
https://www.sau.com.au/forums/topic/457460-spool-34/#findComment-7553045
Share on other sites

No I don't want to limit it with turbo or head but just thoughts on what would be the better way to go?

Maybe there isn't? If I stay with a GTST it will cost to get the head converted to solid and new cams

Or if I went neo it will cost again for cams and a head.

Both might end up about the same?

Yes I use the car up the strip but its not going to be an out and out drag engine, as I still drive it as a day to day car (when its not raining lol)

Will see what turns up anyway as neo heads aren't that easy to come by by the looks of it either

Get Rips to ship you a 3.2 engine - he may be able to find you a Neo head as well.

http://www.ripsracing.com/

  • Like 1
Link to comment
https://www.sau.com.au/forums/topic/457460-spool-34/#findComment-7553074
Share on other sites

Neo head with a shim under conversion is on par with a 26 generally.

Gt35 does not seem big enough to warrant a 3.4

6466 is a great combo for a 3l.

You should make 500kw + (e85) never have to worry about how high your limiter is.

Save the extra from the stroker crank, put it into the head.

What's involved in doing the shim-under conversion on the Neo head?

Link to comment
https://www.sau.com.au/forums/topic/457460-spool-34/#findComment-7553145
Share on other sites

Cheers, have decided to go for the neo head so am on the lookout for one now

As for the 3.4 motor its a done deal. Deposits made so the sooner its built and over here the sooner I can get on with it

In the mean time I have my 25/30, turbo and injectors etc etc which I can use to help finance this new build

Will see how it all pans out I guess so no doubt I'll have a few more questions lol

btw, Talking of injectors am I still likely to get away with my 740 nismo s/feed injectors, greddy copy manifold on a Neo?

Or is that impossible to say till its fully speced

Cheers

Link to comment
https://www.sau.com.au/forums/topic/457460-spool-34/#findComment-7553244
Share on other sites

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


  • 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...