OS Giken TC24-B1Z in a z

richiep

Club Member
Rich, I still stand by my 'post'.

You won't buy that head and neither will anyone else on here. It's a technical experiment and a bloody good one. You may think this is L Series development but it's not it's a Honda based head on an L series block and there is probably more Honda and 'aftermarket' bits in that engine than L series.

If there was a race series that required development to stick to an L Series block but the rest was 'free' then fair enough and well done!

The only twin cam head I would want on an L series is an ex-works Datsun one! Modify an L series to the 'nth degree' as long as it's not got a diesel crank etc I love L series engines and have had hours and hours of fun thrashing one. However those engines are not L series. I can fully appreciate the technical work and it's very very interesting BUT we like classic engines don't we - if not fit an RB (or 1jz like John).

I understand the point you are standing by Rob. Plus, you are probably right that no one here will buy that head. However, if you are saying that the Datsunworks head is not L-series development, then are you applying the same criteria to the OSG head? And any other aftermarket performance oriented developments? Youre saying using a diesel crank disqualifies it from being l-series, despite being from an 'L'D28 engine and the type of mod done since the 70s, in Japan, by dedicated L-series tuners? :confused:

There's historical precedent on the Honda connection too btw; guys in Japan used the FT/XL500 bike piston to achieve 89mm bore with modified L14 rods and LD cranks in the 1970s.

And yes, we do like classic engines, but the Ls have been modded heavily for 40+ years. It's part of their DNA almost. The original TC24-B1s were 1980 vintage. Surely that qualifies them as classic? Most of these mods have been conducted in one variation or another since the cars/engines were new.

Is my to-be-assembled 3.1 not an L-series because it has a custom steel counter-weighted crank? I guess I might win some points back by having Nissan Competition rods to offset the deduction! :p

This is definitely drifting off into the realms of opinion about what qualifies as what now. Reminds me of why I'd been avoiding posting about the Datsunworks head.

Time to cut and run! :driving:
 

Rob Gaskin

Treasurer
Staff member
Site Administrator
Rich, I was just throwing the diesel bit in to be mischievous. :devil:

Ok I'll 'butt-out' Rich, no offence. ;)
 

richiep

Club Member
Rich, I was just throwing the diesel bit in to be mischievous. :devil:

Ok I'll 'butt-out' Rich, no offence. ;)

Mischievous? That was fighting talk man! :smash: :devil:

I thought "he been spending too much time with the standard car again - it's affecting his brain!" :D

Jon - the crank was made by Farndon Engineering. Basically, think along the lines of the Kameari L31-spec full counter crank and you're there.
 
Mischievous? That was fighting talk man! :smash: :devil:

I thought "he been spending too much time with the standard car again - it's affecting his brain!" :D

Jon - the crank was made by Farndon Engineering. Basically, think along the lines of the Kameari L31-spec full counter crank and you're there.


Was that the one 'mpac' had a while ago?
 

richiep

Club Member
Sounds kickass! And he has the rev limiter set at 7000. Imagine that mofo hitting 9k with a properly built stroker bottom end under it! :devil:
 

s2k_adz

Club Member
The things I would do to have one of those engines are not to be discussed in a public forum. Absolutely gorgeous the engine note on them!
 
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