i have no idea on how to put up a rb25 5spd behind a rb20, best idea is to put a post of www.skylinesaustralia.com (http://www.skylinesaustralia.com) or www.skylinesdownunder.co.nz (http://www.skylinesdownunder.co.nz)

well a master list for a rb20det into a VL - i had a auto VL Manual VL drive shaft Manual gearbox mount VL clutch master cylinder MF7? clutch slave cylinder Hydraulic hose to connect clutch cylinders clutch pedal engine/gearbox/wiring/computer

Quote: Originally Posted by DISTURBED also how hard is is to fit an rb25 5spd to an rb20det? whats involved? VLRB20DET could you post up a master list of exactly what parts are needed jus to straighten things out, really appreciate it m8 I beleive all u need to get is the RB25 flywheel, may be the same as the RB30 and a RB25 starter motor, also could be the same as the rb30 Some original photos have not been recovered yet.

i wouldnt bother replacing the RB20 gearbox with a RB25 one.. they are just as strong as each other!

u could also just find a N/A RB30 5 speed, they are the same!

i dont think the N/A RB30E 5spd is the same as a RB20DET, for starters the clutches used for the RB20 are smaller then the rb30... just my 2 cents

bloke when i ordered the clutch for my rb20 it wouldn't fit on my flywheel, he said i have different fly wheel and to go buy an rb30 na as it will bolt up to that, it all fit's and bolts up! VLRB20DET i only ever say stuff that i have done or seen been done! gearboxes are supposedly nearly identical! either way it will bolt up!

RB20 5 spds will shatter to pieces before an RB25 one will. RB25 5spds are same used in GTRS minus the transfer case for 4WD. Hense rb25 box is way more expensive then rb20 box.

Quote: Originally Posted by DISTURBED RB20 5 spds will shatter to pieces before an RB25 one will. RB25 5spds are same used in GTRS minus the transfer case for 4WD. Hense rb25 box is way more expensive then rb20 box. disturbed i know that the rb20 and rb25 gearbox arn't the same, i was talking about the RB30e and RB20det are nearly identical! As u stated, they are normally used for the RB26 conversion and also for the RB30ET when MX7 can't be found! I supposed what ever works for the person on the conversion counts. I just trying to let them know my experiences!

Quote: Originally Posted by poohkies VLRB20DET i only ever say stuff that i have done or seen been done! gearboxes are supposedly nearly identical! either way it will bolt up! mate thats fine i was only sayin what i know and that is the clutch and flywheel between a Rb20DET is smaller than what is required for a RB30! I would think the gear ratio's between the rb20 5spd and the rb30 would not be the same, as for strength i dont think either are much good cos I blew 5 RB30 box's when i had my old N/A RB30 a few years back and this RB20 box i am running is on the way out, time for a RB25 box or a MX-7

im in the middle of buyin a rb20 out of a mates vl, only thing missin will be the turbo coz he blew it up, gettin everything so i can bolt it straight in but how much is a turbo worth for it?? anyone with any ideas and also will the vl power steerin pump bolt onto the rb20?? Cheers Larry

just read the first page, all bolts up, u just have to change the harmlic balancer across to the vl one so the bilts are correct! heaps of post's about this u can pic up second hand ones all the time for around $200-$300 or get it rebuilt for around $800

thanx mate Some original photos have not been recovered yet.

hey guys could someone please give me some info or post a URL for a wiring diagram for a RB25DET... i got all the ECU + looming when i bought my engine but they also gave me all the wiring for the trans and dash... has anyone got any idea of how hard or easy this really is??? if so could someone please PM or EMAIL me with some information thanks guys

Its all so much work lol. I seem to remember a place where u dropped off ur vl and $5k and when u came and got it, it had an rb20det in it . They used to adverstise in unique cars i think? i just dont have the mechanical expertise (or an engine lifter!) to perform the swap.... what are ppls thoughts? Some original photos have not been recovered yet.

its easy i knew nothing about cars, and i hired an engine hoist, took the old one out and dropped in a rb20det, then came the wiring which took maybe 8 hours in total since i had no idea, and the wiring harness i originally had was cut... then the fmic which i think was the hardest, just getting the piping nicely put in place and kinda hidden.. i think it was a great fun first project

hey, just wondering about power steering on a conversion already done and running (not by me). basically there is no unit in at the moment so which one fits? rb30 non turbo, turbo or rb20? is there much stuffing around? also can you help with info on converting the rear drums to discs (on a budget)? can you get units from the local wrecker to bolt up? and you say 13psi is ok for a stock motor and turbo (low k's) or best to wait for an intercooler? thanks for any of your help as im new to this whole VL turbo bizzness..

im running 14psi with my big FMIC,as for running it without one the car will be bloody slow to drive and seriously if you cant afford some sort of intercooler then why do the conversion .. and yeah just use a rb30 powersteering unit. The rb20 unit will not work

one more question.... what is the red line of the rb20?

Not 100% sure what the redline is, put a post up on www.skylinesaustralia.com (http://www.skylinesaustralia.com)