04 1kz-te boost issue?

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04 1kz-te boost issue?

Postby Dave16389 on Tue, 29 Sep 2020 3:57 +0000

Hey all recently bought an 04 1kz-te fitted a boost gauge was boosting to 9.5psi, went and fitted a turbo smart boost controller turned it up and Max it will boost to is 12.5 now at about 2800-3000rpm?
Should these be able to go alot higher? I realise they have a cut out with the ECU at 14-15psi not getting and engine light or anything
Dave16389
 
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Re: 04 1kz-te boost issue?

Postby Gipsy on Wed, 30 Sep 2020 6:35 +0000

How much more do you hope to get? That's plenty over the stock boost. If you're still using the same turbo maybe that's its limit? If you want more you will need to spend lots of $$$s for a bigger turbo and some other mods. Maybe a 3" exhaust will improve things.
Cheers Gipsy :D
My 2013 auto D4D DC SR5, prefilter, 3" exhaust and Chip with egt probe, stock SR5 rims with Toyo Open Country AT2 265/65R/17's
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Re: 04 1kz-te boost issue?

Postby Dave16389 on Wed, 30 Sep 2020 2:19 +0000

3" on it already, 15 or 16 swapping out map sensor, would be heaps, thought these were good for about 20psi?
Dave16389
 
Posts: 2
Joined: Tue, 29 Sep 2020 2:22 +0000
Location: Australia victoria

Re: 04 1kz-te boost issue?

Postby Gipsy on Wed, 30 Sep 2020 2:49 +0000

Engine can probably take it but you're trying to push more air into a two valve head! It can only breathe so much volume no matter how much boost. If you're trying for more power maybe transplant a 3.8 litre petrol engine or a 5.0litre V8.
Cheers Gipsy :D
My 2013 auto D4D DC SR5, prefilter, 3" exhaust and Chip with egt probe, stock SR5 rims with Toyo Open Country AT2 265/65R/17's
Gipsy
 
Posts: 1410
Joined: Tue, 07 May 2013 2:00 +0000
Location: South Coast NSW and all over Oz


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