Rev2 Turbo Swap To Rev3

[dj_davo]

i notice on a previous topic that it was mentioned that £200 would swap a revision2 turbo to a revision3. as the 3 has more bhp and boost it would be nice to swap up.

1. is it easy to swap - ie straight swap?

2. where can u get this for £200 from????????? - is this a part ex price?

3. would you recommend this idea or steer clear and keep rev2 turbo?

[TheNissanMan]

I didn't notice that post before and am sure I would have spotted it....

Sounds very unlikely that you can change the rev2 for a rev3 turbo... Possibly if you part-ex'd the rev2 engine for a rev3 +£200 it would be possible if you were lucky but then you would also have to pay the man hours to fit the engine, looms, ecu etc, etc.....

the rev 2 turbo and rev3 engine should be a straight swap as the mounts are the same but the looms, ecu etc I believe to be different...

[dj_davo]

hi rhaines

sorry if my message was a bit misleading, i am only after swapping the actual turbo and not the engine.

the post i referred to was by chavee and is on the same page as this one "mr2 turbo - differences between rev2 and rev3".

is swapping the turbo for £200 realistic and if so where do u think chavee was referring to for this price?

has anyone u know done this?

[TheNissanMan]

haven't got a clue on swapping the turbo's over I'm afraid :(

[RichB]

Hi, I think there are a number of differences between the rev2 and rev3 engines that just the turbo, but yes, I believe you can do an exchange turbo fairly easily. You may have to dig a little harder to sort it out, and from my experience with Turbos, £200 may be a litle low in the price bracket.

You might rather spend your money here: http://www.fensport.co.uk/partsfiles/sw20tuning.htm

Where for £180 + Fitting of your hard earned pounds you can make a good 30bhp gain.

Also, in their stage 2 tune they include a mongoose exhaust - I would consider getting a custom exhaust made at Longlife/exhaustsUK and removing the Cat to get the best results. I believe this is the direction I will be going when I get my 3sGTE later on this summer.

[dj_davo]

thx for advice rich.

i may get a rev3 turbo then do the £180 upgrade!!!! muhahaha raw power.

[screechmr2]

30bhp? possibly, but you'll need an exhaust on top to help the turbo breathe better.

a ct20b turbo (rev 3) can be bought for £200 (secondhand), seen a few advertised for that, was tempted but skint. all that you need to do to make it fit is lose a bolt from the exhaust side, although in total fitting will take 5hrs plus. with that you'll be able to run 18psi all the way to 7000rpm.

on my rev 1 i run 17psi which lowers to about 14psi above 6k rpm, but with my decat, exhaust, filter, fuel cut defencer i should still be seeing about 260bhp, possibly more. good enough for a 1/4 mile time of low to mid 13s (other people achieved).

also blocked off the vsv so now even when it's below 4c outside it'll still boost 17.

[Dame]

I believe that the rev3 has a different fuel pump and larger injectors, so these would have to be changed too. Also, the ECU will have been programmed differently to match the characteristics of the revised engine.

[screechmr2]

yeah but those won't have to be changed to get rev 3 performance all that has to be done to give a rev 1 or 2 the same performance as the rev 3 is either a boost increase or swap the turbos over and run the same boost as the rev 3. simple as that.

[Dame]

I see, would i be right it thinking that the larger injectors would only come into play if you were looking to up the performance further? Seems strange they're fitted to the rev 3 at all unless it's to improve reliability at higher boost?

[screechmr2]

injectors only come into play above 300bhp. a rev 1 or 2 could easily fuel for up 300bhp, then you start reaching the injectors limits. they can supply enough fuel for high boost as well.

[Dame]

I seeee thanks for that, I'm a bit dumb when it comes to the later revisions. :)