Hypothetically speaking….
If money wasn’t an option, which straight 6 would you put in your Nissan? L series with 6 carbs?

Carbureted RB20?

Fuel injected RB30?

S20?

OS Giken TC24-B1?

Or RB26DETT?
Decisions, decisions……..
Feb
9
If money wasn’t an option, which straight 6 would you put in your Nissan? L series with 6 carbs?

Carbureted RB20?

Fuel injected RB30?

S20?

OS Giken TC24-B1?

Or RB26DETT?
Decisions, decisions……..
13 Responses so far
hechtspeed
February 9th, 2010
8:45 pm
Gonna have to go with OS Giken TC24-B1. I wish I knew something about it…ha ha but I know that the OS Giken stuff was THE stuff back in the day, so I’m thinking its better than the S20 head? Guess I better google it. But I’d definitely take it or the S20, I love those old carb’d sixes. My ring tone is the audio from that Hakosuka GTR screaming around Fuji.
Eric
February 10th, 2010
10:24 am
I agree, although I think it is probably more rare and harder to get a hold of than even an S20 is. N/A is kind of a bummer at 4500ft. though……
Dan
February 11th, 2010
1:14 pm
Lets see…… one RB26DETT N1 Please!!!!!!! I know the N1 wasn’t one of the choices, but hey wht the F not.
Dan
February 11th, 2010
1:18 pm
Why the F not!!!!!!!! I’ll take em’ all and just swap em’ out depending on the mood i’m in for…L’s,S’s,RB’s harharhar:-)
ProTree
February 12th, 2010
9:11 am
hmmm was the RB30 an engine produced by Nissan or are they all just RB26 engines stroked to 3.0? Ive read somewhere that Nissan did indeed built an RB30 but not for a car or truck but for a forklift. not sure about that though.
Eric
February 12th, 2010
2:07 pm
I’m just going to cut and paste this, taken from wikipedia…..
Four models of 3.0 L RB30 were produced:
* RB30S – carburetted single-cam
* RB30E – fuel-injected single-cam (114 kW @ 5200 rpm, 247 N·m (25.2 kgf·m) @ 3600 rpm)
* RB30E R31 Skyline – fuel-injected single-cam (117 kW @ 5200 rpm, 252 N·m (25.2 kgf·m) @ 3600 rpm)
* RB30ET VL Commodore – fuel-injected single-cam turbo (150 kW @ 5600 rpm, 296 N·m @ 3200 rpm)
This motor was produced for the use in Skylines, Patrols and Cefiros, and rights bought by Holden because the Holden 202 (3.3 L) powering the Holden Commodore could no longer satisfy tightening emissions requirements, and with all new cars required to run on unleaded petrol by 1986, a quick replacement was needed. Nissan Motor Co. sold the RB30E to Holden for the VL Commodore. The RB30E in the VL suffered from cylinder head cracking due to the radiator being fitted lower in the engine bay, causing air locks in the cylinder head. This was not as severe in R31 Skyline as the radiator is mounted higher. The engine proved to be very reliable apart from this issue. The RB30S was found in some Middle Eastern R31 Skylines and in some Nissan Patrols. The RB30E was found in R31 Skylines and VL Commodores in Australia as well as in South African R31 Skylines (with 126 kW @ 5000 rpm and 260 Nm @ 3500 rpm)
The turbocharged RB30ET (producing 150 kW) was found only in the VL Commodore (available in all models) and consisted of a lower compression RB30E bottom end, more powerful oil pump, T3 Garrett turbocharger, 250 cc injectors and a different intake manifold. The motor itself is still popular today (albeit in highly modified form) on the Australian Drag Racing circuit.
Nissan Special Vehicles Division Australia produced two limited models of R31 Skylines, the GTS1 and GTS2. These contained slightly more powerful RB30E engines, containing longer opening duration cams and better flowing exhausts.
* GTS1 RB30E – injected single-cam (130 kW @ 5500 rpm, 255 Nm (26.0 kgf·m) @ 3500 rpm) – special cam profile, special exhaust[6]
* GTS2 RB30E – injected single-cam (140 kW @ 5600 rpm, 270 N·m (27.5 kgf·m) @ 4400 rpm) – special cam profile, special exhaust, piggy back computer, valve porting
yosh
February 13th, 2010
8:52 am
I’d go OS Giken TC24-B1. Gotta keep it old school. Thats the one that motor dual cam right? Heard it made some decent hp too!
Eric
February 15th, 2010
10:36 am
I heard somewhere around 320hp, not sure if that’s at the wheels or the crank. I’m guessing crank but very impressive nonetheless for a 30+ year old motor!
Jah
February 21st, 2010
7:41 pm
If cost was not an issue I would go for a different I6 altogether … TVR speed 6 (i know its not a nissan engine) but 400 odd from a 4 litre straight six and N/A … yep thats my choice
Eric
February 22nd, 2010
8:47 am
I can honestly say I know nothing about that motor, sounds pretty burly though!! I will have do check it out…
xonix_digital
March 24th, 2010
10:40 am
OS Giken. Obv. Rarity stateside plain and simple.
jamel
April 5th, 2010
6:04 pm
I think the L-series car is actually fuel injected and those are slide throttles. I’d go with the L-series
Eric
April 6th, 2010
7:56 am
If I’m not mistaken (and I could be
the L series and RB20 both have Keihin FCR carburetors that are normally used on motorcycles: http://www.keihin-us.com/fcr.htm They have something in them called a guillotine valve that apparently flows awesome at W.O.T.but suffers a bit on part throttle. Somewhat common on 4AGE’s as well.
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