Jump to content
SAU Community

Recommended Posts

Hi.

Just bought a dr30 project car minus motor/gearbox

When I eventually buy a fj20 and box, I'm throwing up the Idea of moving the motor back closer to the firewall... Problem is When nissan first designed the r30 I don't think they were thinking of installing an fj20, because the brake master cylinder and design of the inlet monifold prevents the engine from being mounted any closer than about 20c.m away from the firewall.

It would be possible to get a cutom intake made up but that costs$$$ and the design of the standard FJ inlet is meant to be fairly power productive with some light

touch ups.

The only other option I can think of is relocating and/or modyfying the cylinder and pedal box....

Any info or idea's greatly appreciated.

Cheers

Link to comment
https://www.sau.com.au/forums/topic/82053-dr30-engine-relocation/
Share on other sites

Maybe have a look at the gibson cars from when they raced see if you can get an ideas?? Maybe your only other option is to have remote resevoirs on the master cylinder ala FJ20 - 1600 styles??? I don't think Nissan would've put the motor there though if it was such a hinderance to the cars handling...

Yeah,as Boof said,remote booster/master cyl and most likely clutch master as well. You'll also have to make decent crossmember mods to sit the FJ further back,and also gearbox x-member too.Ask me how I know :cheers:

Hey OHR-30t, I've been through ur whole website... How long until the beast is on the road?

Before I start to get to serious (havent got the FJ yet wich will probably help)

do you have any idea how much this is going too cost?... Incl. modified sump, engine mounts and tailshaft and the other things you've mentioned.

I'm also contemplating doing a r31/bluebird front end conversion wich I've seen has been discussed in fair amount of detail in this forum....

I have'nt got too much mechanical expertise so I will probably be paying a workshop to do moat of the work..... Has anyone got Idea's on price$$ to get both these conversions done?

I have'nt got too much mechanical expertise so I will probably be paying a workshop to do moat of the work..... Has anyone got Idea's on price$$ to get both these conversions done?

I Dont really have all that much experience with the mechanical side of things but seem to make do with it all. When ya sit down and have a look at how it all fits together you really get a sense of what will and wont work.

R32 GTST master/booster goes bolt and much closer to the firewall , works for RB20/25/30DET conversions . Moving the 4 cylinder back creates handling issues rather than solving them . Remember , need some weight on the front tyres for steering and braking grip . The DR30 was a homologation special and Nissan got it right . The only viable reason to move the engine back slightly is to make room for a viscous hub cooling fan on the water pump as thermos are inadequate for cooling high output engines .

Cheers A .

Hey OHR-30t, I've been through ur whole website... How long until the beast is on the road? ............

As I'm sure you noticed,mine is an HR31,not an H/DR30. I had the same idea as you originally though,to move the FJ back against the firewall to mate up with the original RB20 gearbox,and discovered that I'd need all the above things, so decided against doing it.I've now moved the gearbox forward to meet the motor,after modifying the box,crossmember,etc. Should be back on the road late this year sometime.

If you can't do much of the work yourself,then you'll be looking at a pretty large bill to get it all done :rofl: Large as in many thousands....

Good to see something different but why an FJ20 when an RB30 falls in ? The RB30 bottom end + RB25DE head is too easy and not that expensive if you shop around . Not flameing you but I could not resist the temptation of a 50% increase in capacity and torque especially when it bolts in . The RB30E is the 186 red motor when it comes to buying rebuild bits .

Good luck with your project .

putting a 3L engine in opens a whole new can of worms, any reason you want to move the engine back??

I was just joking with the rb conversion.. just stirring s*#t..... FJ's are better though :)

The car is headed for drift and I've been l led to believe that weight distribution/ balance is very important.... I.e SR20's into laurels and cefiro's

But what's been mentioned on this thread it possibly makes more sense to work around the problem than just creating more for minamal (if any) gain.

I must have missed something here , HR31's come with RB20DET's do they not ?

If so RB30's (in DOHC form) bolt straight up to the gearbox and engine mounts this is easy .

I detect that the love affair with the FJ20ET is alive and well which is OK but there are other capable engines out there as well . I just like the idea of 182 cubic inches compared to 122 cubic inches . They are far cheaper to buy/rebuild/maintain than a really flying FJ20 and in delux form (RB26 top end) they are more than capable of walking all over any FJ20 in any form .

Your call but as food for thought it would have been interesting to see the Grp A spec DR30's take on the GRP A R31 GTSR's , I know where my money would be .

To the moderator , how old does a Skyline have to be to class it as a classic ? Does a 1989 R32 GTST qualify .

Cheers A .

I must have missed something here , HR31's come with RB20DET's do they not ?

If so RB30's (in DOHC form) bolt straight up to the gearbox and engine mounts this is easy .  

I detect that the love affair with the FJ20ET is alive and well which is OK but there are other capable engines out there as well . I just like the idea of 182 cubic inches compared to 122 cubic inches . They are far cheaper to buy/rebuild/maintain than a really flying FJ20 and in delux form (RB26 top end) they are more than capable of walking all over any FJ20 in any form .  

Your call but as food for thought it would have been interesting to see the Grp A spec DR30's take on the GRP A R31 GTSR's , I know where my money would be....

Cheers  A .

Tisk Tisk Disco! :warning: Don't you read much on fj.com? I'm sure you've seen my progress! Yes I removed the RB20DET,and promptly disposed of it :cheers: The FJ is now bolted into place,next is gearbox x-member mods.I'm aware that you are not a fan of my turbo or engine choice,but hey - each to their own :(

How's this for food for thought then.....Imagine an GRP A spec HR31 with an FJ20 take on a GRP A DR30! I know where my money'd be then :uh-huh:

My choice of direction was for several reasons:

1. I already had the built FJ from my previous car,and not a fan of RB20's.

2. I really like the HR31 for ride quality,features,etc over the 30's.

3. Best of both worlds,in my mind. Grunt of the DR30 (FJ20) and the stlye and more refined ride and electrics of the HR31.

5. Something different.

6. Teh FJ20 can neva lose!

:(

Yeh I'll drink to that , I had a look in your site and woke up to the Pintara FJ bit .

Like you said to each there own . Most of my road miles for the last 10 years have been with two FJ20's so no mysteries here . My leaning is towards higher capacity engines because they do it effortlessly is milder states of tune (RB26/31DET) .

I am curious to know how the FJ feels in the heavier R31 body .

Cheers A .

With 246HP @ the wheels,and 1270KG to cart around,the Pintara felt quite lively....till I got used to it that is! :O Sadly it only had a single spinner,so any tail out action was quite violent,as the single legger changed it's mind on which way to go.

The HR31's a bit heavier,listed at 1360KG with the RB20.Should end up a bit lighter than that with the FJ in it,despite bigger intercooler,etc. Good thing about the Skyline,is it rides even better than the Pintara did,also has 4WS,LSD,big brakes,etc,etc. The amount of trouble this conversion is causing me,it's a wonder it still has the Hicas,air con,etc!

After steing out of a my KE20 Corolla back into the HR31,even 246HP should feel bloody fast for a while! :D Hopefully soon after boost will go from 10psi (246hp) up to 25+ (???hp) :)

I agree that there's no substitute for cubes-even in the turbo world...but...if I may quote you: "I detect that the love affair with the FJ20ET is alive and well..."

:O god damn right!

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • I've heard the Tomei USA head gaskets are decent if you want to o-ring the heads but otherwise not recommended.
    • The 296mm rotors are the R33 turbo brakes. The 310mm rotors are the R34 turbo brakes. The calipers are nearly the same, but not. They're the same caliper but the R34 caliper has longer legs so that it sits out far enough to go over the rotor. The pads are the same for both. When you say, "I bough tsome EBC"....did you just mean pads? Or rotors? 310mm rotors fit under 17" wheels. There may be some wheels without enough clearance though. I can't fit my fingers between the barrel of my wheel and the "corners" of my R34 calipers, but there is plenty of room behind the spokes. This is on Enkei RPF1. You can fit 324mm rotors inside a 17" wheel, but I'd be willing to bet that it would be close to impossible with the Nissan/Sumitomo caliper (using an adapter, of course), because the Sumitomo caliper is fatter than the Brembo caliper that is supposed to go on the 324mm rotors.
    • Hi. Can someone tell me what brakes(and mainly WHERE) can i buy brakes on R34 GTT? I bought some EBC which SHOULD go on my car(i have GT but it has GTT brakes) but it does not fit, Brakes are "too" small(296mm) Are 310mm be good or? I have 17 inch wheel so no "big boys" but for me driving i just need one that fits and i can get here in EU/Czech.
    • Since winter isn't that harsh anymore in Poland, i will definetely drive it 365 days a year 😉. But if the snow hits i will try it for sure and let U know. Only swap i am planning to do is of course R34 GTR front 😍.
    • Hey. Very valuable information about pitwork, I will pay attention when buying any consumable parts 🙏 As for the carpets - I got a handful of information from nengun, from which it appears that indeed the carpets for the driver's side are OEM. They are not able to show me any pictures due to the long chain of different sales entities but after I place the order, as soon as the goods arrive at the nengun warehouse from which they will send the shipment to me they can send me photos and if my purchase differs from OEM I can immediately return it / cancel the purchase. I think I will give it a try 😉. Of course i'll let you know what's what as soon as i get them P.s. I know the topic is not relevant to the thread, but both nengun and amayama have these SICK 😍 trunk room lamps available. Do you know anyone who ordered them? I need to have one in my car
×
×
  • Create New...