Rb26 Or 30/25 Conversion Into R32 Gtst

[lilmissr32]

Hi,

I'm looking at doing one of the following conversions into my 32 gtst:

a. 26DETT

b. 30/25

c. 30/26

d. 30/20

I am after any information anyone can give me to help me make my decision on this! I intend to completely forge the bottom end (whichever one I will be using) and will use the GT3540 & manifold, Nismo 555cc injectors, Tomei cam gears, Bosch 550hp fuel pump, Malpassi reg, Microtech LT12 (is currently a plug-in but can be used as a wire-up as well) and other bolt-ons that were on my 20. I need to know such things as how straight forward each conversion would be; what mods I would have to do for each conversion to fit (including timing belt, tensioners, water jackets etc. etc.); which head would be the better of the 3 to use (in terms of standard flow etc.); which bottom end would be the better one to use (in terms of strength) and which option will give me the most power with the least cost.

Would appreciate any information at all! Thanks

P.S. Has anyone ever put a 2JZ into an R32???? I've seen it in an S15 and a Silvia but not a 32!

[R31Nismoid]

Budget?

Use of car?

They will dictate what you do really.

As for the whole "3ltr bottom end", there is a thread already on that, and all the possible parts needed.

http://www.skylinesaustralia.com/forums/t15420.html

Basically all the info is already here, you just need to read it

[lilmissr32]

Budget - doesn't really matter, getting all labour for free (except tuning) - I want 350rwkw or over though

Use of car - dragging

Thanks for that link, will check it out...........

[Al]

Thinking of a $40-$50k engine budget, i would go with option a/rb26 and hang a T88 off the side, that's built to rev to 11,000rpm safely.

[[200]]

You could probably do it for half that amount for 350rwkw

[lilmissr32]

Jeez - when I said that the budget didn't really matter, I didn't mean 40-50K!!!!!!

I could get an off-its' tits R32 GTR for that! lol!

[Baz]

Errr... its pretty obvious. The 26/30 conversion would be the best conversion and also the most expensive.

[zertek]

hey buddy, i noticed your sig says 292rwkw on an rb20det? id be interested to see some stats if you get time to PM me. cheers!

[Al]

You could probably do it for half that amount for 350rwkw

If you have an rb26, with a t88, reving to 11,000rpm it will cost you at least $50K to make it somewhat reliable, and it will surely make a shit load more than 350rwkw

Just pointing out how ridiculous your comment about "not being concerned about a budget......" was. Everyone has a budget, goal, etc.

[duffman32]

26/30 would be the best convo, i believe only 1 little bit of machining is needed for head to go on 30 bottom end.

a few hidden details about conversion

need to make engine mounts low with th 30 bottom

if running 25 box need custom cross member, tailshaft etc

need speedo drive(can use 32 gtr and just change 33 gear off)

need temp. sensor so gauge will work(put off 20)

new wiring loom

different heater hoses

and a few other things that i may have missed

But yer all the info is on this site

best of luck mate

trav

[silver gts-t]

If you want ease look for the more rare RB25de out of a r32.

[bubba]

^^ I used an RB25DE head out of an R32, swapped all the sensors from my RB20 and she fired up and drove on the stock RB20 ecu (well it was a remap with no R&R.. the stocker ecu just hit R&R all the time with more than 10% throttle or 3000rpm). Drove pretty damn well for an untuned ecu running a bastard engine.. just didn't like 6000rpm+ as the afm was maxing out.

Neeed a new turbo damnit! This RB25 turbo is waaaaaaaaaaaay too small, 12psi by 2200rpm but over 5500-6000rpm it gets majorly restrictive to the point that by the 6800rpm limiter it's only making 90hp

[sickdude38]

hi i am doing rb26dett conversion into my r32 gtst and need pics or info on the wire thats needs to be run to power up injectors

Edited October 7, 2014 by sickdude38

[GTSBoy]

I suppose it isn't possible to search for anything to do with that.