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Rb20 Red Top V Rb20 Black top

OptiC

By OptiC,
in General Automotive Discussion

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OptiC Enthusiast

OptiC

Posted
Posted

i'm just wondering what the diffrence between the rb 20 red and black tops were i will be installing an rb into my car soonish and have found a cheep red top i'm just wondering if there as good as the blacks and what the diffrence is beween the 2 are

thanks in advance

-Marc

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Roy Grand Master

Roy

Posted
Posted

I think you will find most ppl refer to them as silver top and red top.

There is a fair bit of difference, with different inlet manifold setups, different blocks (some say the red top has stronger block) different turbos, different ECUS.

Whether the cams and compression ratio ares the same i cant tell you, but considerign the silver tops make more power std, something like 145 vs 160kws and are newer with much niocer turbos then id be lookign for a silver top...

Kinks Grand Master

Kinks

Posted
Posted

also, the red top came in NICS and ECCS versions. the NICS version had a head design that gave it better low down torque but strangled it up top. the ECCS is much closer to the silver-top RB20 in design and power output.

Personally I wouldn't bother with a NICS. either ECCS (the engine that's in my car) or a silvertop - the latter is preferable due to its newer vintage and slightly higher power output.

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

Also sensors and parts for the red-top.

There are 3 different CAS for the red top series.

Silver top heads dont bolt on etc etc.

So if you cook your red-top... finding parts is harder than it would be for a silver and in the end will cost ya more $$$

WazR32GTSt Grand Master

WazR32GTSt

Posted
Posted

I'll make a list of what i have read/heard about the differences. please correct me if i'm wrong...

red top has a lower compression ratio

red top has a non-BB turbo

they both have different cams, head design, and ECU

that's all i can remember at the moment.

basically, don't go the red top unless its dirt cheap!

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