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I did'nt realise ethanol could make such a big improvement in performance!! It is certainly noticeable in your second video of the launch!! Looks like more to come!.
Yes mate I'm sure with e85 and more grip it's got more to give yet 😁
Jurgen said it wasn't maxed out on pump fuel so I'd imagine timing is very conservative for the max 2 bar pump fuel map and that's why there's such a big jump in power onto ethanol
Pump fuel 2 bar is ideal for the road though there is literally no drama but still around 1000 hp I estimate 👍
And should be super reliable aswell, as for ethanol I'm not sure how reliable it's gonna be its bloody violent 🤣😂😁😁 lol
New tyres are here for 18" wheels
325/40r18 m and h racemasters
I've never felt a compound so soft to the touch, hopefully will be the best gripping tyres I've ever had 🤞🤞
Drag racing Monday on the r888rs hopeing for a problem free day and my first 10 or lower 🤞🤞
Had a good day started gently, launching at 3000 rpm.
1.7 bar boost ran 10.6 @ 148 mph 1.8 60 ft
Then ramped it up to 2.2 bar and ran 10.1 @ 142 mph, 1.9 60 ft, was at 123 mph 1/8 track but I felt power drop of sharp mid run
let it cool down then went out at full 2.6 bar boost and ran 10.9 @ 141 mph 🤔
Had one more try at 2.6 bar after a long cool down and ran 10.3 @ 148 mph
Could feel the car was well of the pace like being on pump fuel not ethanol
Tuner checked datalogs and my last run target was 2.6 bar but actual boost was only 1.7 bar peak so ended the day there, have a boost leak we suspect
But still happy 10.1 at mid boost with a leak and lazy launch that's a good start I reckon
And finally met turnover sound fella 😁👌
To see how far off the pace my 10.1 was, checked my vbox log 100-200 kph was 3.54 seconds, I've done it In 3.14 on unprepped track so was well off full pace
So fix it so we have full 2.6 bar, then back to pod once getting full power for while run will then ramp up launch rpm to limit of r888 tyres
Couple of vids for anyone interested the 10.3 and 10.1
Shame it didn't go to plan but certainly shows it's got the minerals.
Was a good start, on cal 5 about 2.2 bar from 3rd gear hit the 1/8 6.9 123 mph and felt it drop off between 1/8 and 1/4 think I might of let off aswell as panicked abit wondering why had lost power
Found issue today carbon plenum has blown apart at the bonding seam 😔😔
Got my vbox data sorted out from Santa pod
my box was consistently showing 1 tenth slower and 1 mph slower than Santa pod timing gear for all 3 runs I recorded
Forgot to turn it on for my last 10.3 run as was thinking why couldn't get full power and forgot
Fastest 0-60 was 3.5 seconds I've done 3.2 up my road so I assume the extra grip was causeing some bog so should definately take more rpms at launch
First 10.6 @ 148 mph run is the red plot cal 3 so about 1.7 bar roughly from 3rd gear lower boost in second
Second run 10.1 @ 142 mph is blue plot, cal 5 so about 2.2 bar roughly was pulling really strong into the low 100 mph and felt it drop off, that's when inlet popped and can see it fall on it's face in the curve (didn't know at that point inlet had popped)
3rd run green run 10.9 @ 141 mph, was cal 8 full 2.6 bar boost target from second gear didn't know had the leak and spool time reduced as 60ft, and 330 ft slowest of all day
Did pull a 4th run 10.3 @ 148 mph cal 8 agsin but car had cooled right down by then as was thinking maybe heatsoak and timing being pulled, went round almost no queing and had only just hit 60c trans temp when I did the run so I believe the carbon plenum had cooled right down with less heat, less expansion and less leakage
it was abit better but still way of the pace
And still knew it wasn't right could feel it, that's when I got my tuner on TeamViewer to check datalogs and he saw on the last run only hit 1.7 bar
Shows what power it's got though 3000 rpm launch 0-60 3.5 - 3.9 seconds, a split plenum and still pulling 10s all day 😂🤣😁😁
Last edited by scoooby slayer; 16-09-2020 at 04:14 PM.
Cheers pal 👍
That was my first ever run in the car mate first of the day, 1.8 60 ft, no wheel hop, tiny bit of wheelspin but I didn't notice it in car at all, I'm trying to get new carbon plenums sorted asap want to get back out there for 9s and 160+ mph hopefully this year but not long left now til pod will be shut til 2021
Ps did you see that little black lotus Elise I think it was, proper wheelie 🤣🤣 beast of a car
Alot of fast cars there was great I watched a few
Far better than rwyb, not to busy in crowds and not to busy queing for track time, test and tune ftw 👍👌
Another v box plot but this one is quarter mile comparison
The times won't tally my plots will appear considerably slower because the 12" rollout cannot be applied in test suite
Green run 10.9, red run 10.6 and blue 10.1
Blue run approx 6 seconds inlet bursts, now I've got my keep my foot hard in it head on 😂🤣 lol and I think I shifted to fifth at 9.5 seconds and then just backed off the throttle and coasted over line at 141 mph
Looking at how the blue curve fell off at 110 mph, I think it was on for approx 0-150 mph in 8-9 seconds area
Was there much difference in weight between the bootlids/spoiler?
Will be interesting if you notice any difference when driving it as everyone raves about spoilers making downforce etc.
Spoiler and boot much heavier than carbon bootlid
I don't think it was angled right to do any good other than cause extra braking tbh
It needed setting up and I couldn't be arsed with it so just took it off mate
New plenums arrived, far better design no bonding of carbon to plastic the V2 model is all carbon, I don't know how they've made it but it's like it's been made as one piece somehow, much better well chuffed 😁😁
Did pressure test and throttle bodies were leaking badly where there bolted up, the gaskets have a raised ring for sealing but the new plenum has a bigger throat and smaller flange so the sealing ring drops inside the flange it bolts to, tiny Sean if silicone and job done, put 10 psi in and it held it for a good 30 seconds before all pressure had gone so good to go now and try again at pod, but need to do a pull and datalog checked just to be sure the maps still ok incase it had any leaks when mapped 😁😁
Did a pull and felt quicker than ever !
So downloaded log and sent tuner above 1.5 bar of boost engine now requires 5% more fuel but syvecs has compensated and added fuel without needing adjustment in the map 😁
When I did 100-200 in 3.14 seconds I had 48% ethanol so I still wasn't at full power 😮😮
First pull at pod on cal3 was e48, then we topped up with e98 again which got us just above E60, E60 and above is full boost and timing and then ran second run on cal5 which then blew the inlet after about 6 seconds into 1/4 mile
So it wasn't just fixing the leaks that made it feel blisteringly fast it was the first time lastnight I've hit and held full boost full power
Was spinning all the way through 3rd gear
Hopefully launch be easier now aswell as air leaks will not be helping with spool off the line, just need some dry weather now to try again 🤞🤞
Been figuring out how to download datalogs and view them
I found my 10.1 @ 141 mph run and can see exactly where plenum burst
Blue is rpm, purple boost, was upto 2.6 bar in third gear the shift to 4th caused a boost spike of 2.8 bar plenum then burst and boost dropped to 1.6 bar !
You can see how hard rpms rise through 1st to third gear then 4th very slowly rising which I felt in the car like a plug lead had fell off !
That pull was the only time since I've had the car I've actually hit 2.6 bar of boost all other logs show 2.2 bar max
Difficult to know exact change in spool now as
I just rolled into it third gear pull from low rpm after fixing inlet whereas all my runs from pod where launch and pulling all the way so in boost all the time, but it feels more responsive and power hard past 5000 rpm which I'm sure it wasn't doing before.
my best guess is plenum was ok and burst at pod, but throttle bodies must of been leaking as they physically couldn't of been sealing due to a standard throttle body being bolted to a big bore flange with stock gaskets and no sealer
Need seat time now to try again but cold and wet so might be 2021 before I can get back at it now
Did a pull and felt quicker than ever !
So downloaded log and sent tuner above 1.5 bar of boost engine now requires 5% more fuel but syvecs has compensated and added fuel without needing adjustment in the map 😁
When I did 100-200 in 3.14 seconds I had 48% ethanol so I still wasn't at full power 😮😮
First pull at pod on cal3 was e48, then we topped up with e98 again which got us just above E60, E60 and above is full boost and timing and then ran second run on cal5 which then blew the inlet after about 6 seconds into 1/4 mile
So it wasn't just fixing the leaks that made it feel blisteringly fast it was the first time lastnight I've hit and held full boost full power
Was spinning all the way through 3rd gear
Hopefully launch be easier now aswell as air leaks will not be helping with spool off the line, just need some dry weather now to try again 🤞🤞
Syvecs is awesome like that - it does can adjust fuelling to a certain percentage to try and help before before putting it in limp mode. I'd love another Syvecs to put on my Datsun but will see.
That's mega impressive for the time/spec then - that's going to be silly quick on full power.
Syvecs is awesome like that - it does can adjust fuelling to a certain percentage to try and help before before putting it in limp mode. I'd love another Syvecs to put on my Datsun but will see.
That's mega impressive for the time/spec then - that's going to be silly quick on full power.
Hopefully be comfortably in the 2s mate 100-200 and if spool a little better hopefully nip in the 3s on pump fuel
Hopefully be comfortably in the 2s mate 100-200 and if spool a little better hopefully nip in the 3s on pump fuel
Hows yours coming on mate ?
In the 2s will feel insane! Super quick that!
I'd love to time mine - I've only driven it a couple of times but even wheel spinning it feels so quick. I'm so busy I've not spent much time on it, but still sorting out a few bits and pieces. Bought new wheels and a 275 tyre, but don't think it's wide enough.
I took a mate out the other day and it lights up the tyres in fourth gear at 100mph no problem, so thinking of tubbing it and going a BIG tyre.
I'd love to time mine - I've only driven it a couple of times but even wheel spinning it feels so quick. I'm so busy I've not spent much time on it, but still sorting out a few bits and pieces. Bought new wheels and a 275 tyre, but don't think it's wide enough.
I took a mate out the other day and it lights up the tyres in fourth gear at 100mph no problem, so thinking of tubbing it and going a BIG tyre.
Always gonna be difficult mate big V8 loads of torque. My little old Humber I can rolling burnout second gear every time and it's only about 320 hp but bucket loads of torque from idle
My supra was on 295/30/19 r888s and would clean hook in third gear but I think torque was only 630 lbft at the hubs, but was 760 hub hp
What's wheel torque of your car is it over 1000 ftlb ?
Always gonna be difficult mate big V8 loads of torque. My little old Humber I can rolling burnout second gear every time and it's only about 320 hp but bucket loads of torque from idle
My supra was on 295/30/19 r888s and would clean hook in third gear but I think torque was only 630 lbft at the hubs, but was 760 hub hp
What's wheel torque of your car is it over 1000 ftlb ?
Yeah it's OK off boost, it just comes on SO hard.
I'm not entirely sure of torque, would like to find out soon, but did come with a graph for 880lb ft at the wheels (I have my doubts on anything American). It should be around there in theory.
It weighs 1,200kg, which doesn't help lol
I think I'll try and 315 drag radial once I fit the new diff that can actually take the power. Then we can have a drag race
I'm not entirely sure of torque, would like to find out soon, but did come with a graph for 880lb ft at the wheels (I have my doubts on anything American). It should be around there in theory.
It weighs 1,200kg, which doesn't help lol
I think I'll try and 315 drag radial once I fit the new diff that can actually take the power. Then we can have a drag race
That is huge torque mate for rwd on a dynojet, I'm only running 990 lbft at all 4 wheels and Thursday night was spinning all the way through 3rd upto about 115 mph 😮😮
and that was at 2.2, max is 2.6 bar for full power
Sounds like a plan for a Santa pod day be great fun 👍👍
From a standing start I presume you can just hit the throttle and it will go like hell with that big V8 even off boost
Been doing abit more looking at datalogs
compareing before and after plenum burst and it shows just how hard them turbos were working definately overspinning imo
Before it burst iats were at 32c second gear and peaked at 40c max 150 mph
After inlet burst iats hitting 53c at 150 mph !
Turbos must of been generating some serious heat overspinning
Back at Santa pod today more issues blowing pipes off
but once we got them to hold 9.6 @ 166 mph 😁😁
Wheelspin in first second and third gear so we're past limit of r888s now so I didn't bother running anymore
Hopefully 8s next year with 18" drag radials, with 166 mph terminals we've got the power that's for sure
I'm hopeing so pal I'm sure the 166 mph terminal has proved I've got the power to pull an 8 at full weight, my 1/8th was 127 mph I think that is going to go up into the 130s so should get closer to 170 mph hopefully 🤞🤞
On my plot 165 mph is 1350 whp so she's right on the money for the dyno plot to be right, I'm making more boost now aswell so should be 1350+ whp
Your speed will come down as you get better 60ft pal
I can't get my head around that mate, I can definately accelerate harder and be going faster than 127 mph at the 1/8th mile marker, so I should then be doing a higher mph by the 1/4 mile,
I'm gaining 39mph from 1/8 to 1/4 mile markers that's full boost full power near as damn it full grip
all the wheel spin in first 3 gears I'm not accelerating so surely once I have grip all the way physics would suggest IL be higher mph at the finish line
I saw an Anglia running doing 9s and mid to low 150 mph, but when he got it right good launch did 8.8 160 mph
All interesting stuff will be great to get some data next year hopefully get an 8 and be able to compare then and look at all this stuff 👍👍
Took 18" wheels in today for checking over, painting gold, new tpms sensors and new drag radial tyres fitted
Had a good look at my r888r tyres on car atm and I'm sure there knackered, tempted to get a new set of 20" r888r tyres on and try again next year before going onto the 18s
Looked at the log of launch, I hold 3000 rpm and build 0.4 bar of boost, then when I launch rpms drop to 1777 rpm !
Basically not far above idle.
If some new tyres can stop that happening and let me get a bit more rpm in for the launch I might be able to get close to the 8 on the 20" rims proper street set up still
02-09-2020, 10:35 AM
