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The mkiv Supra Owners Club

Upgrading from a PHR T61?


b_have

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Thanks Nic, so tell me about a TO4Z (my gf gave up on the techi Jp translation!) I see it is dbb and various a/r's available. How will this compare to my PHR T61? Is it less laggy than a BL T67DBB?

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Terry has basically the same turbo as me, a Garrett GT35R. It should be good for 600bhp, just about. Mine is a .81 A/R, you can also get a 1.06 A/R housing. Or you could go for a GT40R, that'll easily manage 600-700 I would think.

 

Mine on stock cams with no real ignition advance mapped in yet is at full boost at 3750rpm, it starts making decent boost around 3000.

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Thanks Mig, like Terrys plot, would love to see boost v rpm.Wonder what a/r that is.

So, looks like a choice between a BL GT35R ala Saunders/PHR stage2 Obiwan massaged/or a T67DBB

Any more for any more? :)

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You have 3 choices IMO

GT4088R

T67DBB

PHR Stage 2+

 

All are DBB...and both will deliver the power...the 4088 is a wee bit smaller though and so it may be the better bet. I've not seen a 4088R dyno though to know how it spools. But if it is faster to spool as it's smaller size suggests then it will be good.

 

However it does depend on the boost you're intending to run...a T61 will deliever 600HP if you wind it up enough :)

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Yes' date=' leaning towards that. Do you have any dyno graphs / datalogs for yours?[/quote']

 

Charlie, we have PHR kits here and the quality is simply THE very best. All HKS original parts.

 

Woudl you like me to put up some photos as I need to start selling these kits anyway

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Yes' date=' leaning towards that. Do you have any dyno graphs / datalogs for yours?[/quote']

 

 

i had some but feck knows where they are !

 

as martin says they are quality.

 

really pulls well, running about 1.6 bar (with lots of other mods to support)

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Think we need to get the PHR S2+ and the T67DBB on the rollers...or comparative datalogs from a PHR kit to Ian's big DBBT67 write up. Datalogs of a 5th gear roll from 2000rpm would be really useful.

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