newbee!! RB25DET tunning?? - GT-R Register - Official Nissan Skyline and GTR Owners Club forum

bemmerkid · 1st March 2006, 02:49 PM

hello every one.
i used to own a Nissan 200sx S13 running 300bhp but just sold it wanted to move on too a bigger and better.

i have just brought a RB25DET with manual gearbox etc to fit into my project BMW E36.

Ive been told the standard rb25det kicks out 250bhp in standard form, could some one in-lighten me to the tunning i can do to what bhp to expect from them mods.

also what is the weakest point of this engine etc would you recommend upgrading any of the parts or internals?
any information given would be very much appreciated.
regards
Jake

Crail Loser · 1st March 2006, 03:32 PM

Hehe, have a look at the search function m8, you will find loads, infact there is a thread all about it two below this entitled "RB25 bottom end stuff"

So RB25DET in a E36 ....... I would have said you were mad untill I saw what a sweet installation it can be and I can see it being a very popular conversion in the future

Good luck, the gearbox bracket is the worst part by all accounts

bemmerkid · 1st March 2006, 03:39 PM

thanks for the info, i had a quick read of the thread regarding the bottom end but it dont seem to help me.
any info regarding the questions asked above would be apprecated.
thanks

Crail Loser · 1st March 2006, 03:54 PM

Problem is there is no short answer to it.

bemmerkid · 1st March 2006, 04:46 PM

how much bhp could i run at what boost before i would have to uprate any internals?
cheers

bruce-m · 1st March 2006, 08:02 PM

std internals can run 400bhp easy with steel turbo,front mount,bigger injectors,induction kit,3 inch exhaust, z32 afm and a ecu power fc etc @1.2 bar.

bemmerkid · 2nd March 2006, 09:17 AM

sweet! thats lovely how much should i expect to pay for :
steel turbo (from what skyline?)
bigger injectors (what size?)
ecu power fc ( were can this be brought from is it hard too fit?)
thank you

Crail Loser · 2nd March 2006, 09:24 AM

You forgot to add steel headgasket and fuel pump, oh and fuel pressure regulator, downpipe, decat, induction kit, boost control and ...... dump valve

Better add a new exhaust manifiold gasket and studs as well

Mapping as well, for the PFC

May as well throw in a set of cams as well to get it to the 400bhp figure as 380 is the norm for the 1.2bar build.

NISFAN · 2nd March 2006, 09:57 AM

will a stock RB25 fit? I know of Turbo charged M3's and they had to fit the turbo near the front of the engine bay, as it is very narrow. I don't see an RB helping in this regard.

Chris Wilson · 2nd March 2006, 11:18 AM

Quote:

Originally Posted by bemmerkid

hello every one.
i used to own a Nissan 200sx S13 running 300bhp but just sold it wanted to move on too a bigger and better.

i have just brought a RB25DET with manual gearbox etc to fit into my project BMW E36.

Ive been told the standard rb25det kicks out 250bhp in standard form, could some one in-lighten me to the tunning i can do to what bhp to expect from them mods.

also what is the weakest point of this engine etc would you recommend upgrading any of the parts or internals?
any information given would be very much appreciated.
regards
Jake

I am fascinated to read crail Loser say what a swwet installation the RB can be in an E36, any links to this info please?

Feel free to phone me if you want any help on RB25DET tuning, I have got a fairly strong one in an R33 GTS-t at the moment, running well and reliably, as a track day car. 07971-952084

Crail Loser · 2nd March 2006, 12:42 PM

I will get my wife to host some pics so I can link them .... prepare to be amazed

NISFAN · 2nd March 2006, 12:58 PM

So it does all fit then?

Crail Loser · 2nd March 2006, 01:07 PM

Quote:

Originally Posted by NISFAN

So it does all fit then?

http://img.photobox.co.uk/38112572a8...ca53948b12.jpg

http://img.photobox.co.uk/134682433d...f0daa505ea.jpg

http://img.photobox.co.uk/23505603af...447d923bbe.jpg

http://snap23.photobox.co.uk/3590511...d7a9cba60e.jpg

Chris Wilson · 2nd March 2006, 02:53 PM

Image Not Available.... Hmmm, looking forward to seeing this, can you check the linls please?

Crail Loser · 2nd March 2006, 03:36 PM

mmm thats weird, I am on the 2nd of our work pcs and image unavaliable as you say, however if I go to my other pc image is avaliable ... i just logged onto some site for uploading pics to host them.

Ok i will try again later

1st March 2006, 02:49 PM	#1 (permalink)
bemmerkid GTR Register Member Join Date: Feb 2006 Posts: 21	newbee!! RB25DET tunning?? hello every one. i used to own a Nissan 200sx S13 running 300bhp but just sold it wanted to move on too a bigger and better. i have just brought a RB25DET with manual gearbox etc to fit into my project BMW E36. Ive been told the standard rb25det kicks out 250bhp in standard form, could some one in-lighten me to the tunning i can do to what bhp to expect from them mods. also what is the weakest point of this engine etc would you recommend upgrading any of the parts or internals? any information given would be very much appreciated. regards Jake

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1st March 2006, 03:32 PM	#2 (permalink)
Crail Loser GTR Register Member Join Date: Jan 2003 Location: Scotland Posts: 1,691	Hehe, have a look at the search function m8, you will find loads, infact there is a thread all about it two below this entitled "RB25 bottom end stuff" So RB25DET in a E36 ....... I would have said you were mad untill I saw what a sweet installation it can be and I can see it being a very popular conversion in the future Good luck, the gearbox bracket is the worst part by all accounts

1st March 2006, 03:39 PM	#3 (permalink)
bemmerkid GTR Register Member Join Date: Feb 2006 Posts: 21	thanks for the info, i had a quick read of the thread regarding the bottom end but it dont seem to help me. any info regarding the questions asked above would be apprecated. thanks

1st March 2006, 03:54 PM	#4 (permalink)
Crail Loser GTR Register Member Join Date: Jan 2003 Location: Scotland Posts: 1,691	Problem is there is no short answer to it.

1st March 2006, 04:46 PM	#5 (permalink)
bemmerkid GTR Register Member Join Date: Feb 2006 Posts: 21	how much bhp could i run at what boost before i would have to uprate any internals? cheers

1st March 2006, 08:02 PM	#6 (permalink)
bruce-m GTR Register Member Join Date: Sep 2005 Location: salisbury Posts: 84	std internals can run 400bhp easy with steel turbo,front mount,bigger injectors,induction kit,3 inch exhaust, z32 afm and a ecu power fc etc @1.2 bar.

2nd March 2006, 09:17 AM	#7 (permalink)
bemmerkid GTR Register Member Join Date: Feb 2006 Posts: 21	sweet! thats lovely how much should i expect to pay for : steel turbo (from what skyline?) bigger injectors (what size?) ecu power fc ( were can this be brought from is it hard too fit?) thank you

2nd March 2006, 09:24 AM	#8 (permalink)
Crail Loser GTR Register Member Join Date: Jan 2003 Location: Scotland Posts: 1,691	You forgot to add steel headgasket and fuel pump, oh and fuel pressure regulator, downpipe, decat, induction kit, boost control and ...... dump valve Better add a new exhaust manifiold gasket and studs as well Mapping as well, for the PFC May as well throw in a set of cams as well to get it to the 400bhp figure as 380 is the norm for the 1.2bar build.

2nd March 2006, 09:57 AM	#9 (permalink)
NISFAN GTR Register Member Join Date: Oct 2003 Location: Herts Posts: 1,696	will a stock RB25 fit? I know of Turbo charged M3's and they had to fit the turbo near the front of the engine bay, as it is very narrow. I don't see an RB helping in this regard.

2nd March 2006, 12:42 PM	#11 (permalink)
Crail Loser GTR Register Member Join Date: Jan 2003 Location: Scotland Posts: 1,691	I will get my wife to host some pics so I can link them .... prepare to be amazed

2nd March 2006, 12:58 PM	#12 (permalink)
NISFAN GTR Register Member Join Date: Oct 2003 Location: Herts Posts: 1,696	So it does all fit then?

2nd March 2006, 02:53 PM	#14 (permalink)
Chris Wilson GTR Register Member Join Date: Aug 2001 Location: Shropshire Posts: 1,557	Image Not Available.... Hmmm, looking forward to seeing this, can you check the linls please?

2nd March 2006, 03:36 PM	#15 (permalink)
Crail Loser GTR Register Member Join Date: Jan 2003 Location: Scotland Posts: 1,691	mmm thats weird, I am on the 2nd of our work pcs and image unavaliable as you say, however if I go to my other pc image is avaliable ... i just logged onto some site for uploading pics to host them. Ok i will try again later