JAK 74W

A place to describe in details your 300, close to or in genuine condition
The purchase, story of the car, repairs...
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foggyjames
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Re: JAK 74W

Post by foggyjames » 28 Sep 2011 01:37 am

I'm pretty sure I have a spare "chrome" mk1/mk2 bumper, Mark. The trims are attached via metal tags which can be un-bent with the bumper removed. The front one is unique to a 1981 car, though - the later mk2s have a "pointed" bumper, whereas the last of the mk1s (1981) have a curved bumper. In other words...rear is easy...front is hard!

cheers

James
VOC 300-series Register Keeper
'89 740 Turbo Intercooler
'88 360 Turbo Intercooler
'85 360 GLT
'81 343 GLS R-Sport
'79 343 DL
'70 164
...and some modern FWD nonsense to get me to work...

MCHUDD
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Re: JAK 74W

Post by MCHUDD » 28 Sep 2011 12:57 pm

Hi James.
That would be great. The car is Jan 81 vintage.
Latest pics of the bumper are in the MCHUDD IS LOUVRED AGAIN thread.
Cheers Mark. sm69 sm69 sm69 sm69 sm69 sm69 sm69

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SteveP
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Re: JAK 74W

Post by SteveP » 28 Sep 2011 07:03 pm

Personally I'd run the GLT diff - it's still tall enough to be quiet at motorway speeds, and will improve acceleration. The 60k mile thing is also a no brainer as I reckon it's rare that they get oil changes in 360's due to the filler plug being so hard to access. The GLS diff will hamper acceleration and exaggerate the 'hole' in the ratios between 2nd and 3rd gear, not what you want in your fun car :)

Saying that, if you're developing enough power the GLS diff would be fine too, but I'd choose the GLT one :) Just keep it as a spare!
1989 - Volvo 360 GLT
1985 - Volvo 360 GLS
2008 - Volvo S60 SE Lux

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Hell Driver
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Re: JAK 74W

Post by Hell Driver » 28 Sep 2011 08:42 pm

MCHUDD wrote:Hi Helldriver.
Have you any plans for the chrome trim that goes on top of
the front and rear bumpers of the GLS.
Cheers Mark. sm4
I've not got the bumper off the car yet (one of the last bits of trim to come off due to nasty rusty bolts!), I'll let you know when I've got it off. I think the stainless steel trim is OK, but maybe lightly scuffed though (not by me!) May polish out? Don't know if stainless polishes well?

Regarding the Diff and gearbox, thanks for that Steve, I thought the GLT would be best for acceleration, just wanted to convince myself that I wouldn't regret not having the GLS one in for more relaxed cruising at higher speeds. I just remembered James mentioning something about that particular years GLS having a different ratio diff in than other GLS years and wanted to check that I'd got the ratios correct in the first place. I may have got my wires crossed, I'm sure I'll be able to bend his ear about it this weekend :lol:

The rubber mounts that are on the transmission mounting cradle thingy seam very floppy, I'm assuming they should be stiffer than this and really need replacing? Not had a really close look at them yet.

No doubt another no longer available part :roll: Time to look on ebay
360 GLE Saloon (D 86)
360 GLS (A 84)
343 DL (W 80) :-)
340 GL 1.7 (G 89)
360 GLS (Y 83)
440 Turbo (J 92)
Transit Tipper 125 T350 (02)Alive Again!
Transit Tipper Smiley face Q reg
Mitsubishi Colt 1.1 (54)
R.I.P. 77 343 DL vario :-(

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foggyjames
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Re: JAK 74W

Post by foggyjames » 28 Sep 2011 09:37 pm

With the torque the turbo engines offer, I would go for a carb diff (3.28:1 for early GLSs, 3.36:1 for later carbed cars). Once you have 200+lbft of torque in something which barely tops a ton, gear ratios become largely irrelevant, but 70mph cruise RPM closer to 2500rpm makes for much more relaxed motoring.

cheers

James
VOC 300-series Register Keeper
'89 740 Turbo Intercooler
'88 360 Turbo Intercooler
'85 360 GLT
'81 343 GLS R-Sport
'79 343 DL
'70 164
...and some modern FWD nonsense to get me to work...

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Chris_C
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Re: JAK 74W

Post by Chris_C » 28 Sep 2011 11:04 pm

I must admit, I'm kinda pining for a 3.36 in Fake even with the sprinting I do. I'm tempted to test one and see what it's like in the lanes, but as it stands I have easily enough torque to largely ignore gears and thats from a revvy French twin cam ;)
'89(G) 340 GLE B172k
'03 S60 D5 SE, '91 (J) MX5, 1954 Cyclemaster
Ex:
'89(F) 340 GL F7R (ex B172k) - Fake -> SBKV 300 Runner Up 08, 12; '91(H) 340 GL B14.4E - Kar; '88(F) 360 GLT B200E - Jet -> BKV 300 Runner Up 09; '89(G) 360 GLT B200E - Beast

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foggyjames
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Re: JAK 74W

Post by foggyjames » 28 Sep 2011 11:48 pm

I'd have thought the lower the better with something as revvy as the F7, but I guess it depends on the speed ranges you're working in. For regular on-road use, I have no regrets in running the 3.82:1 in the R-Sport, except that it's prone to locking the rears if you're a bit rough on the way into second. Less flywheel required! Then again the rest of the internals are hardly featherweight!

cheers

James
VOC 300-series Register Keeper
'89 740 Turbo Intercooler
'88 360 Turbo Intercooler
'85 360 GLT
'81 343 GLS R-Sport
'79 343 DL
'70 164
...and some modern FWD nonsense to get me to work...

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SteveP
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Re: JAK 74W

Post by SteveP » 29 Sep 2011 12:04 am

foggyjames wrote: but 70mph cruise RPM closer to 2500rpm makes for much more relaxed motoring.
This is the only benefit to using the taller diff - which has twice the mileage. I think you're missing the point - does anyone really care if it's not exactly relaxed on a fun car. 3000rpm at 70mph (3.64) is fine anyway! I'd much rather have the urgency of a shorter diff (3.64 aint that short anyway!). Put it this way, if you find your 340 1.7 quiet enough at 70mph this will be practically the same :)

Seriously Bottrill - I do wonder if you're not nearing middle age sometimes :lol: Quietness over performance??
1989 - Volvo 360 GLT
1985 - Volvo 360 GLS
2008 - Volvo S60 SE Lux

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foggyjames
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Re: JAK 74W

Post by foggyjames » 29 Sep 2011 12:27 am

Hey, I used to have a 3.36 and changed it to a 3.82 in my old age ;)

The mileage is a non-issue for me...both are low enough not to be a cause for concern. I just think the taller diff suits the turbo engine better. It's more like the ratio the (much heavier!) donor cars had, and makes for a nicer high-speed drive. I still have vivid memories of driving Pettaw's (well sorted) 3.64 car at 100mph on the autobahn and seeing nearly 5krpm, wishing for a 3.36 (4k rpm). It seemed a lot noisier...and I'd prefer to keep the engine speed down for long-term high speed cruising. It has quite an impact on MPG at more UK-friendly motorway speeds, too (not necessarily verified in 300s, before you start muttering about carbs vs knackered LE-Jet...but in other platforms).

cheers

James
VOC 300-series Register Keeper
'89 740 Turbo Intercooler
'88 360 Turbo Intercooler
'85 360 GLT
'81 343 GLS R-Sport
'79 343 DL
'70 164
...and some modern FWD nonsense to get me to work...

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SteveP
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Re: JAK 74W

Post by SteveP » 29 Sep 2011 08:02 pm

The thing is, from what I gather the sort of car being built is not the kind that you'd spend doing 100mph for long periods of time, the same applies for long motorway cruises (if you are, get a diesel). Out of interest how many times do we all drive on german Autobahns at 100mph? :D

Also, I wish I'd checked what diff was in my GLS... because that pulled 3000rpm at 70mph, exactly the same as a GLT so I would suspect it strangely had a 3.64?! I would be *very* surprised if it'd had a gearbox swap earlier on in its live due to it only doing 44k miles.
1989 - Volvo 360 GLT
1985 - Volvo 360 GLS
2008 - Volvo S60 SE Lux

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Hell Driver
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Re: JAK 74W

Post by Hell Driver » 29 Sep 2011 08:51 pm

Interesting discussions here, thanks. Not yet decided! It is meant to be a fun car to drive but I would hope maybe to do some longer touring type trips sometime, maybe abroad. I think I could live with slightly more RPM at higher speeds for that little bit more fun at the other end :wink: . I tend not to drive too fast these days on the motorway anyway, more out of economy than anything else, 70ish is fine for me anyway. I wouldn't be doing 100 for any length of time, not with Jack on board anyway!

The other factor I suppose is also the wheel size, will 15'' wheels outweigh the GLT diff. and bring it more in line with a GLS diff anyway? I intend to use the original size 13" wheels at times. Is this a useful way of altering the ratios depending on the driving requirements? (I know it also depends on the tyre profiles, the rears on the 15" wheels are 55's
360 GLE Saloon (D 86)
360 GLS (A 84)
343 DL (W 80) :-)
340 GL 1.7 (G 89)
360 GLS (Y 83)
440 Turbo (J 92)
Transit Tipper 125 T350 (02)Alive Again!
Transit Tipper Smiley face Q reg
Mitsubishi Colt 1.1 (54)
R.I.P. 77 343 DL vario :-(

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foggyjames
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Re: JAK 74W

Post by foggyjames » 29 Sep 2011 11:13 pm

You could use different size tyres on the rear to alter the gearing without throwing the speedo out...that goes for any size of rim! 195/50/15 and 185/55/15 equate to more or less the original rolling radius.

It's very much a matter of preference, but I'd run (within reason) the tallest diff I could find, for more relaxed cruising and better economy (at whatever speed!). The ratio is going to make a negligible performance difference with that much torque on board...they only put short diffs in the 1.4s to multiple the torque up, given that it's a bit short on juice relative to the weight. Provided it's above about 2500rpm, a B230 turbo in a 300 will pick itself up in 5th and charge like very little else on the road.

Interesting about your GLS, Steve...I'm just going on what the book says. It's possible it was swapped, but I agree relatively unlikely. It's on a sticker on the diff (drivers side, on the reverse side of the flange to the gearbox), so that'd have been the acid test.

cheers

James
VOC 300-series Register Keeper
'89 740 Turbo Intercooler
'88 360 Turbo Intercooler
'85 360 GLT
'81 343 GLS R-Sport
'79 343 DL
'70 164
...and some modern FWD nonsense to get me to work...

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Hell Driver
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Location: Doncaster UK

Re: JAK 74W

Post by Hell Driver » 07 Nov 2011 08:02 pm

On Saturday I went to Whitby to pick up some Mk1 headlamps I won on ebay in the search for a pair of perfect reflectors, not bad at £1.99 each! Of course I came back with not one but two pair of headlights (one really good one out of 4 :roll: ), and

Image

whoops :oops:

More later as I sort out what I need from what I should sell on.

As this in in the JAK thread, I can at least report that I've found some really nice and important parts for this project which WILL be moving faster in the very near future :P

Look out for some parts in the sale thread soon!
360 GLE Saloon (D 86)
360 GLS (A 84)
343 DL (W 80) :-)
340 GL 1.7 (G 89)
360 GLS (Y 83)
440 Turbo (J 92)
Transit Tipper 125 T350 (02)Alive Again!
Transit Tipper Smiley face Q reg
Mitsubishi Colt 1.1 (54)
R.I.P. 77 343 DL vario :-(

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Speedy88
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Re: JAK 74W

Post by Speedy88 » 07 Nov 2011 08:21 pm

haha! Oops. Make hay while the sun shines I guess? :wink:
'88 340 Williams (Sold)
'85 360 GLS - Drift project (Sold)
'77 Colt Sigma
'96 940 Drift project

volvosneverdie
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Re: JAK 74W

Post by volvosneverdie » 07 Nov 2011 08:26 pm

Like a Bossssssssssssss.
Image

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