will the mighty t4 beat the mansize TT t38
#202
Billet wheels are designed to withstand high pressures
they are substantially lighter and have an increased flow
Steves gained 30bhp at the hubs on the SAME dyno
the garret GTX range use billet comp wheels
they are substantially lighter and have an increased flow
Steves gained 30bhp at the hubs on the SAME dyno
the garret GTX range use billet comp wheels
Last edited by Turbosystems; 21-05-2012 at 11:54 AM.
#203
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Being lighter has it increased spool time? I'm running a Ball bearing 247 shafted T4 with a GT35 front housing, so could be interested in this! What's the max power it could produce with the rest of the engine optimised for it? Circa 500 at the moment.
#204
Advanced PassionFord User
With the billet comp wheel you'd have pretty much the ultimate T4
#205
best thing to do is hub dyno it with the turbo you have then hub dyno it on the same dyno with the billet wheel conversion
We can then record the surging gt35 compressor for pf evidence roflol
The anti surge T4 and t 38 have a lovely supercharge whine at part loads
4i was playing choo choo trains with his throttle
We can then record the surging gt35 compressor for pf evidence roflol
The anti surge T4 and t 38 have a lovely supercharge whine at part loads
4i was playing choo choo trains with his throttle
Last edited by Turbosystems; 21-05-2012 at 12:04 PM.
#207
anti surge and billet were done at the same time but his act was 10rising to 16 degrees higher than last time as it was a much warmer day
constant 23 C last time 32 C rising to 39C at 7400 this time ambient was 9 degrees higher than last time
so we'd like a run on a cold morning at 23 C ACT with it's new set up
constant 23 C last time 32 C rising to 39C at 7400 this time ambient was 9 degrees higher than last time
so we'd like a run on a cold morning at 23 C ACT with it's new set up
Last edited by Turbosystems; 21-05-2012 at 12:08 PM.
#208
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I'm sure that mine doesn't surge, can you here if it does from the video below?
http://www.youtube.com/watch?v=WR02f...e_gdata_player
http://www.youtube.com/watch?v=WR02f...e_gdata_player
#213
best thing to do is hub dyno it with the turbo you have then hub dyno it on the same dyno with the billet wheel conversion
We can then record the surging gt35 compressor for pf evidence roflol
The anti surge T4 and t 38 have a lovely supercharge whine at part loads
4i was playing choo choo trains with his throttle
We can then record the surging gt35 compressor for pf evidence roflol
The anti surge T4 and t 38 have a lovely supercharge whine at part loads
4i was playing choo choo trains with his throttle
If you use a dd rr it will give you a better power fig too!!
#215
youve obviously never used a decent rolling road??
Engine dyno is awesome but the engine still has to be checked and re set up after wards once in car so irrelevant in this argument..
Hub dynos always over read and theyre grief to set up taking wheels off etc etc..
A dyno dynamics rolling road is the best out there imo unless your running massive power(800 hp+)then yes id agree to a hub dyno but only if you take the hub power as flywheel power..
Engine dyno is awesome but the engine still has to be checked and re set up after wards once in car so irrelevant in this argument..
Hub dynos always over read and theyre grief to set up taking wheels off etc etc..
A dyno dynamics rolling road is the best out there imo unless your running massive power(800 hp+)then yes id agree to a hub dyno but only if you take the hub power as flywheel power..
#216
all aldi priced RR are hard work with any turbo charged car over 300 bhp
1 minutes mapping 1 hour cooling down period lol
here's a mild RR incident http://www.youtube.com/watch?v=MWs_iW4H_S8
I'm sure some more serious ones will be posted
1 minutes mapping 1 hour cooling down period lol
here's a mild RR incident http://www.youtube.com/watch?v=MWs_iW4H_S8
I'm sure some more serious ones will be posted
Last edited by Turbosystems; 21-05-2012 at 07:40 PM.
#217
all aldi priced RR are hard work with any turbo charged car over 300 bhp
1 minutes mapping 1 hour cooling down period lol
here's a mild RR incident http://www.youtube.com/watch?v=MWs_iW4H_S8
I'm sure some more serious ones will be posted
1 minutes mapping 1 hour cooling down period lol
here's a mild RR incident http://www.youtube.com/watch?v=MWs_iW4H_S8
I'm sure some more serious ones will be posted
You need to spend some time on a dd rr to see how good they are..untill then you shouldnt put them down..
As for cooling, then a hub dyno is just as hard an inviroment as any rr so no argument there!!lol
#219
A bad rolling road video isnt going to make everyone decide theyre shit tony!!
You need to spend some time on a dd rr to see how good they are..untill then you shouldnt put them down..
As for cooling, then a hub dyno is just as hard an inviroment as any rr so no argument there!!lol
You need to spend some time on a dd rr to see how good they are..untill then you shouldnt put them down..
As for cooling, then a hub dyno is just as hard an inviroment as any rr so no argument there!!lol
I merely stated Rolling Roads
#221
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#222
#226
#227
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#231
PassionFord Post Whore!!
#233
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youve obviously never used a decent rolling road??
Engine dyno is awesome but the engine still has to be checked and re set up after wards once in car so irrelevant in this argument..
Hub dynos always over read and theyre grief to set up taking wheels off etc etc..
A dyno dynamics rolling road is the best out there imo unless your running massive power(800 hp+)then yes id agree to a hub dyno but only if you take the hub power as flywheel power..
Engine dyno is awesome but the engine still has to be checked and re set up after wards once in car so irrelevant in this argument..
Hub dynos always over read and theyre grief to set up taking wheels off etc etc..
A dyno dynamics rolling road is the best out there imo unless your running massive power(800 hp+)then yes id agree to a hub dyno but only if you take the hub power as flywheel power..
but saying hub figures are flywheel figures is wrong, adding 18% is ludicrous i agree but a small percentage must be added.
heres one i picked at random
http://www.rri.se/popup/performanceg...p?ChartsID=688
shows 8% power loss from flywheel to hub.
#234
that is simply not correct, rototest have done extensive tests to proove it aswell hub figures are between 6 - 10% losses to flywheel, dyno dynamics use what 17% roughly ?
but saying hub figures are flywheel figures is wrong, adding 18% is ludicrous i agree but a small percentage must be added.
heres one i picked at random
http://www.rri.se/popup/performanceg...p?ChartsID=688
shows 8% power loss from flywheel to hub.
but saying hub figures are flywheel figures is wrong, adding 18% is ludicrous i agree but a small percentage must be added.
heres one i picked at random
http://www.rri.se/popup/performanceg...p?ChartsID=688
shows 8% power loss from flywheel to hub.
The hub figures always seem to be very close to the flywhell figs the rr calculates..
I agree with you there must be some loses but seeing power back to back sugests the figs from the hub arnt correct to start with hence the wrong calcs..
These guys just take the hub fig as the flywheel figs as the engine dyno and the rr have both proven this..
#235
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The guys at afr tuning and austec have a dd rr and an engine dyno and last year with theyre drag supra the hp figs between the engine dyno and dd rr upto around 900 ish hp were nearly bob on but when the gas was used the rr simply couldnt deal with it so they took it to a hub dyno as have many of their customers..
The hub figures always seem to be very close to the flywhell figs the rr calculates..
I agree with you there must be some loses but seeing power back to back sugests the figs from the hub arnt correct to start with hence the wrong calcs..
These guys just take the hub fig as the flywheel figs as the engine dyno and the rr have both proven this..
The hub figures always seem to be very close to the flywhell figs the rr calculates..
I agree with you there must be some loses but seeing power back to back sugests the figs from the hub arnt correct to start with hence the wrong calcs..
These guys just take the hub fig as the flywheel figs as the engine dyno and the rr have both proven this..
#236
#238
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once ive done another 700 1/4 throttle miles then it can have hell again
im hopeing to have some comparison runs for my skyline next week if it goes to plan, but that will be dynapack v dyno dynamics.
supra was run on tdis rototest.
#240
Advanced PassionFord User
A good way I've found is to use virtual dyno and then pull logs off the ecu of a full throttle run (in 3rd/4th w/e). It's fairly good for showing differences (provided theres no hills involved )