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Author Topic: 20 to 25de  (Read 3120 times)

BUC957

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20 to 25de
« on: March 11, 2012, 02:22:53 PM »
Hey guys. Just wonderin what needs to be changed to get a 25de conversion certified? Its a 92 R32 factory manual non lsd. My 20 got high kms and is starting to be a bit problematic for my liking. Plus whats the goin price for both 20 and 25 motors at the mo? Thanks all

base

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20 to 25de
« Reply #1 on: March 11, 2012, 02:33:52 PM »
there a cheap 25 in chch on trademe atm

westybob

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20 to 25de
« Reply #2 on: March 11, 2012, 02:54:38 PM »
There the price of the cert inspection and everyone needs driveshaft loop(s)  these days and they may (or may not) consider you need upgraded brakes.

25DE are usually $500 - $1000

Here's a neo engine for a little more:   http://www.trademe.co.nz/motors/car-parts-accessories/nissan/engines/auction-455813606.htm
« Last Edit: March 11, 2012, 02:58:46 PM by westybob »

BUC957

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20 to 25de
« Reply #3 on: March 11, 2012, 03:40:30 PM »
With the brakes would I just need front 4 pots or front and rear upgrade?

westybob

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20 to 25de
« Reply #4 on: March 11, 2012, 04:34:34 PM »
Stock 25DE maybe no upgrade needed TBH.

BUC957

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20 to 25de
« Reply #5 on: March 11, 2012, 05:14:31 PM »
Anyone know where theres a relatively cheap 25 up for sale? Prefer bop ir close. in about 2 months? Or alternately a good low kms 20 even?

Skyla

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20 to 25de
« Reply #6 on: March 11, 2012, 10:26:41 PM »
Quote from: BUC957;594213
With the brakes would I just need front 4 pots or front and rear upgrade?

You would probably get away with your stock brakes with up graded pads and fresh fluid, if you are wanting to go to bigger calipers and rotors you could always use R33 GTS25 front calipers and rotors, the front calipers are 2 pot, and the rotors are 280mm diameter and 26mm thick. The best thing about them is they are  4 stud so are fairly easy to fit.
R33 GTS25, the 121rwkw 16 sec 1/4 mile whale snail

Taupo track 1, 1.56 (A1GP)
Taupo Track 2, 1.23
Taupo track 3, 47.89
Taupo track 4, 2.02
Manfeild, 1.30
Pukekohe, 1.17
Hampton Downs, 1.25

rrcredline

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20 to 25de
« Reply #7 on: March 12, 2012, 11:19:33 AM »
I didn't have to have the brakes done when I went from a 20DE to a 30DE. Changing your brakes calipers and rotors maybe require a cert though.
Not sure I woiuld bother certing the 25DE engine. They would never know so long as you use the 20 coil cover.

BUC957

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20 to 25de
« Reply #8 on: March 12, 2012, 12:58:09 PM »
Yea gomna try that first :)

Shadow

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20 to 25de
« Reply #9 on: March 12, 2012, 01:19:42 PM »
brakes dont have to be done on gts unless your going to a 25det 26dett or 30det(t) but then again it all depends on your certifier
gts brakes are roughly the same size as a laurel, ceferio 20det

D1LEMA

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20 to 25de
« Reply #10 on: March 12, 2012, 01:22:58 PM »

4ever_sideways

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20 to 25de
« Reply #11 on: March 12, 2012, 02:38:40 PM »
Quote from: rrcredline;594277
They would never know so long as you use the 20 coil cover.


^This, it's not like you're going to turbo, as above just swap over all the covers:)
Nothing is fool proof to a well accomplished fool.

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Shadow

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20 to 25de
« Reply #12 on: March 12, 2012, 03:02:45 PM »
Quote from: 4ever_sideways;594299
^This, it's not like you're going to turbo, as above just swap over all the covers:)


that works, but it can cause some isurnace issues???

deepdarkminimal

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20 to 25de
« Reply #13 on: March 12, 2012, 05:37:27 PM »
yeh insurance might not pay out because it had an un-certed engine in it. but i guess it depends on the situation.
for the record i never had to upgrade my brakes when changing to a 25det but keep in mind this was from a 25de which i think come stock with bigger brakes than the 20de so i guess the certifier thought they were allgood. never had any stopping issues either using those brakes.
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Shadow

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20 to 25de
« Reply #14 on: March 12, 2012, 10:05:45 PM »
Quote from: andreeee;594328
yeh insurance might not pay out because it had an un-certed engine in it. but i guess it depends on the situation.
for the record i never had to upgrade my brakes when changing to a 25det but keep in mind this was from a 25de which i think come stock with bigger brakes than the 20de so i guess the certifier thought they were allgood. never had any stopping issues either using those brakes.


yea the 25de are like 15mm bigger and usally 2pot(r33 anyway), but if your car can stop with a 20de im sure it will be fine with any rb motor :D

any way isn't brake size meant to suit the weight of the car not the power?