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Have the adj caster arms and kmac strut tops.Max of +8 caster.Wheel will still be forward of guard center if you want the most caster possible.
Yeh 100 % is a safety concern,although ive tested my mix and it burns’easily at 44/56 w/m which is 50/50 by weight.
Your qtr mile time should improve out of sight with the new rubber.
Good to get some cool air into those ITB’s.
How are you going to stop water from getting to the panel filter’s?
Interesting to see the different flow rates. Were the injectors tested with gasoline or the test fluid?
I see your looking at a 50/50 mix now instead of 100% meth.Why the change?Looking for more det control with more boost in the future?
How’s the power to the road with the new tyres?Feel like you have got another 100 hp lol.
. Have you explored the options of having one made out of a composite material like carbon fibre/ fibreglass.
This is what i would be doing.
It could be done in epoxy with a carbon fibre top layer for around $500.00 if you had a crack yourself.You have the bottom section so the height/width and length are sorted.I could give you the throttle position measurements and your right to start a mold.As it’s a custom plenum you could place the throttle’s either side if you wanted like the Giaccottolo,although progressively linking the two could be troublesome.
After the complex curves and clearancing required on my ducting this would be a relatively straight forward piece to attempt.Make the rectangular plenum mold first then you can shape the two throttle attachments separately and attach later from the inside.I’d recommend getting a 6mm or so metal bottom plate for plenum and also two for the the throttle flanges and glass them in to give it some more strength where there are mating surfaces and thread for the mounting studs.Finally i would get some of that phenolic material and shape it to sit between both sections to minimise heat transfer into the epoxy plenum.Then you can move on to the ducting lol.
Don’t get me wrong,this plenum would need a lot of hours glassing,shaping and sanding.But if you like a challenge and take your time it can be done.
Blacked out engine with glossy carbon fibre plenum would be a one of a kind.
Thanks.The Vortech makes a huge difference.Worth all the effort in the end.
No happy dyno Cava,it actually has the opposite reputation of producing conservative numbers.
The problem is my reduced capacity to recollect the correct info from a quick conversation as i get older lol.
Confirmed by the tuner…695rwhp on 15 psi E85 224-228 cam, manual transmission.
Also found out today the VF Ute had a helping hand with a 75 shot of gas.
For the LS boys on here.
Mates 400 ci Maggie blown VF Ute with cam on E85 just made 830 rwhp.Very impressive.
My tuner also mentioned a VH he just tuned with a stock LSA with cam only made 750 rwhp on E85.This same bloke installs the LSA in Nissan patrols for customer’s and win’s traffic light duels towing a trailer lol.As much as i like old school V8’s,you can’t argue with those results.
All electrical tidied up and tray cover back in.Also changed oil again and checked filter.No nasties to be seen just the usual wear and tear after a good dyno rev.Oil level was a little low,will have to keep an eye on it.
Finished tray area with reservoir for W/M system.
What was the final result on fuel issue, is it sorted now?Interested to know what the problem was.
Mate this thing will smash my power level.Can’t wait to see it on the road.
Black bumpers always did suit the VN Very tidy
Agree.Sometimes the simple things are best.For me this would stand out more than the same era HSV…..well maybe not a SV 5000,have a soft spot for those.
Haven’t seen the inside of the banana’s before,pretty ugly entry’s.Solid casting.
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This reply was modified 7 years, 10 months ago by
VS 355 UTE.
Nice power man what timing is it running up top end ?
Thank’s Manta.I’ll have to get back to you on that as i’m not sure.He did mention 13 degree’s but i can’t remember if that was before or after we reduced timing for the final safe tune.Matt has given me a USB with saved info from the tuning runs.Once i can work out a way to access the file i can confirm timing numbers for you.
You had asked me earlier in this thread on the result’s of the bypass valve being re circulated.No problems with the boost i’m seeing and is quiet which i like.
Nice update Dave it will not be running out of fuel anytime soon thats for sure. That really shows how much the water/meth plays a huge part in cooling intake temps.
Cheers Eden.Fuel supply was was one of the easier items to sort out.
I think there may be room for a further drop in IAT’s as i calculated jet sizes on lower boost and power levels to what i ended up getting.Every psi of boost gained reduces the pressure at the nozzles by the same amount i.e. pump pressure is 150 psi -15 psi boost = 135 psi at the nozzle and less flow.Fuel flow was also more so IDC calc’s were also lower than they should have been.It never bogged down when the spray was introduced so i know i’m not spraying too much.
The first larger nozzle is about 330mm from IAT sensor,the second slightly smaller one is 210mm away.So what i don’t know is, has the full reaction of the mixture to the heated air been completed or is it still continuing to reduce temps after moving past sensor and into inlet manifold?Or…..has the mixture injected finished it’s capacity to reduce temps before sensor due to my calc’s being on the low side and would bigger jet’s yield better result’s?Water to Methanol ratio could also be adjusted as boiling points are different.Another few hours dyno time would be interesting.
Look forward to seeing how your system performs.
Awesome results mate gotta be happy with that, the massive drop in inlet temps from the water meth system is good to see too I’ve been thinking about trying that instead of an intercooler for a while now and seeing temp drops like that has pretty much got me sold, gotta love forced induction on the old holden makes em sound even meaner too.
Thanks.Yeh it was good to see it all work as well as it did.I was quietly confident in the benefits of the W/M injection system but without any feedback from other Aussies who have installed these kits i was still uncertain of the final dyno results.Boost response is instant and i love the sound of the V1 mixed with the twin 3 ” exhaust.Has a different lope at idle which i didn’t expect.
At least other’s like yourself who may be considering W/M can make an informed decision based on results posted in this thread.
Time for another update.
Fuel system was upgraded with another 044.This is set to come on at 6.5 psi by a ground activated Hobbs switch.Both flow into a Y piece then into the stock 5/16 fuel line.While i was there i tidied up the electrical/fuel lines and gave the surge tank a coat of paint.None of it is seen once cover is back in place but i thought i’d do it anyway.
I also needed to make up a cover for the pod filter down in the front passenger side bumper area.The wheel sits directly behind it and if it rained while driving i was going to have some major issues with water entering the engine.I didn’t want to restrict air flow so i sealed the wheel arch side so water can’t enter and left the front open for plenty of air to enter.The pod sits high enough to be protected behind bumper bar.Made a plug from mdf/ply and glassed it up and gave it a thick coat of body deadener to prevent stone’s damaging it.
Back to dyno to finish tune.Funny thing was both days i booked in was Friday the 13th….glad i’m not superstitious.
It was a stinking hot day,over 40 c in the dyno room and 80% humidity.I take my hat off to Matt the dyno tuner,he does this all day,all summer.I’d had about enough after sitting next to him for the 3 hours it took to finish the tune.The rich exhaust fumes just make it worse.Anyway.. after sorting out some vac lines to carbon canister surging issues,fixing some worn thermo fan connections Matt then set the Hobbs activation point and started tuning.This was done on fuel only until AFR/timing was optimised and 525whp was made at 14.5 psi and limiter coming in at 6800 rpm.I was happy,i’d cracked the 500 mark.Inlet temps were getting hot though and peaked at 110 c.Time to turn on the W/M system.I have it coming on early,about 2000 rpm but it’s not spraying much at this stage,injecting more as fuel demand rises.AFR dropped a full point so injector’s were trimmed and Matt was able to add another 3 degree’s of timing.Power increased to 571 whp…..a 46hp increase.Inlet temps had dropped to 55 c, not much above the room temp, a 55 c reduction.Not bad at all.Also it seems 700 + hp is not a problem on stock fuel lines and regulater on 98 fuel.
We both agreed that a safety margin would be a smart move so he added fuel back in and dropped 2 degree’s of timing.Power dropped to 537whp and we called it a day.The 34 hp loss doesn’t worry me at all.It’s got no traction at all above about 3200 rpm anyway, at least on the 285 20’s.I have a set of 17’s with Toyo r888 275/40/17 to try and better get it to the road.
Pink line at 403 whp is max power aspirated when this engine was built 9 years ago.Also stoked with the area under the curve,power comes on strong.Thinking cam specs are helping here with tight 108 LSA giving good mid range grunt but may also be why power doesn’t keep building at the very top.Centrifugals get a bad rap about how boost is linked to rpm and torque is lower compared to PD blowers.I wanted to use these perceived negatives to help with getting the car hooked up and going forward before traction was lost to boost.That wasn’t so successful lol.A Whipple would be mental in my ute….. be fun though.
Got to tidy up electrical wiring in cabin now tuning is done but essentially i’m finished.Very happy how it has all come together and how it goes and handles.Time to drive it again after nearly 2 years off the road.
Cheers
Great looking engine,plenty of effort gone in to it.Looks like it will make excellent power.
I was very close to installing the same dry sump set up on mine,no room for it now.
My cam is nearly identical except it’s ground on a 108 lsa.Good street cam with plenty of mid range grunt,especially with those heads you have.In a light VK it will be a weapon.
Keep the updates coming.
Sounds like you have been busy.Will be a stand out ute when everything comes together.
Any questions on the W/M install just ask.Your boost pressure will be back to normal….and cooler.
Never been to Summernat’s.Have to make the trip down one year look’s like a lot of fun.
Thanks Senator.Hopefully it all goes well.
HDN05L Cheers mate.How’s your ute progressing?
Went for a drive the other weekend and it is too frustrating having limiter set at 5200 rpm.Time to sort out extra fuel.Have decided on another 044 activated by boost at 7 psi,500rpm below it starts to lean out.I don’t want both pumps on all the time.I only need the other pump after 5200 rpm so no need to heat up the fuel and draw another 15 amps on the electrical system for top end power which will only get used every so often on the street.This should get me to 7000 rpm and 500 + rwhp on stock 5/16 fuel line and second pump will live a long life…if this doesn’t give me the fuel pressure i need i’ll upgrade to a bigger fuel line.
I am going to post up results/photos of the W/M system and it’s effects on my engine as i couldn’t find any info relating to our local cars when i looked into the benefits/drawbacks to installing such a system.Hopefully this helps others who may be interested in choosing this over traditional A2A inter cooling.
A video to show how quickly the system opens and closes flow….no dribbles.This is 100% duty cycle…full flow at 900 cc p/m at 50/50 mix.
Spray keeps plugs really clean,even though the AFR’s are richer.Used to replace standard plugs often,Iridium lasted heaps more…spray should see them last even longer.
On a side note…Highly recommend one of these oil filter’s that can be cleaned and inspected.This is after engine was run after 18 months off the road.No nasty metal particles but heaps of moisture trapped in the filter.This was before dyno session,checked again after dyno and all good.
After a good clean.Rare earth magnet picks up any shavings.
Will update once tune is finished.
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This reply was modified 7 years, 10 months ago by
