[2961]

Safe max. RPM\'s

What is considered the max RPM that can be ran for an extended period of time on the stock 1.3 ? I try not to run over 4000 RPM's for more than just a few seconds if I can help it. I'm not sure if the 1.3 can stand the higher RPM's for extended periods.

 

[13337]

Re: Safe max. RPM\'s

I rev mine to 6000 with no concern . I dont hold it there but I run it on up . There are guys on the board turning theres higher than that . At 60 mph I turn 4500 rpms , and I used to do that for 4 hours to the trailhead until I started trailering .

 

[1100]

Re: Safe max. RPM\'s

The 1.3 can handle it for long periods of time.......

Sean

 

[Guest]

Re: Safe max. RPM\'s

Suzuki is known for their high-rev engines. I've heard their superbikes can run at 12K+ rpm. If you drive above 60 mph you're pushing 3750 or 4 grand on the tach, and you can do that all day long. Around town I never shift my zuke before I hit 4000 rpm, she's just getting into her power band up around there.

I wouldn't worry about it one bit.

 

[2961]

Re: Safe max. RPM\'s

Yeah, I have a Suzuki Bandit and it's red line is 12K.

 

[Guest]

Re: Safe max. RPM\'s

Yes you can rev the snot out of the 1.3L but what does a Suzuki motorcycle engine have to do with a Suzuki Samurai 1.3L engine? I always see people comparing the two. The 1.3L motor in a Samurai couldn't be any more different than the motors that are used in their motorcycles - especially their newer crotch rockets. The 1.3L motor although somewhat reliable is of a typical older 4 cylinder design - comparing to a new superbike's engine is like comparing a Ferrari motor to a Yugo motor.

There is also a huge difference between a motor that makes it max power at 12,000+ RPMS versus a motor that makes it at 6,500 RPMS.

New suzuki motorcyle motors are totally different and high tech - Lightweight titanium valves with steel alloy springs and aluminum spring retainers, chrome-moly steel connecting rods, Hydraulic cam chain tensioner, 32-bit ECM with larger ROM memory and new 22 trigger-pole rpm sensor, Lightweight stainless steel exhaust system featuring a higher capacity muffler with titanium core pipes and aluminum outer sleeve, etc....

 

[AkDale]

Re: Safe max. RPM\'s

U Tell-em Pug!

 

[Guest]

Re: Safe max. RPM\'s

In reply to:

U Tell-em Pug!

[/ QUOTE ]

LOL!!

 

[1339]

Re: Safe max. RPM\'s

Holding a 1.3 under 4K isn't nessecary. The Sami 1.3 makes its peak HP of 66 at 6000, and it's peak
torque at 3500. Under most conditions, I wouldn't twist a stock sami 1.3 past 6K, since your not
gaining anything. A swift GTI/GT 1.3 will go much higher RPM's, but again that is a completly,
albiet similar, engine.

I run my 1L 410 motor all the time at 5200 down the highway, but again its a differant motor.

I would however recomend best quality oil at regular intervals, since the little zuk motors run so
hard for what they are, with synth, or at least synth blends, prefered.

 

[3693]

Re: Safe max. RPM\'s

What do you guys consider the sensible limit for the 8-valve 1.6?

I know the 1.6's have a longer stroke and reach the same piston speed at lower rpm's than the 1.3, but what is the recommended practical upper limit for sustained running? I gotta run mine at 4,200 to hit the 65 mph speed limit. I try and stay at 4,000 rpm's on the freeway which is around 62 mph. Around here you get killed if you go below that and the average speed is closer to 75 mph.

 

[gi_zuk]

Re: Safe max. RPM\'s

I've got about 100,000 miles logged in driving my Samurais on the highway.

I usually cruise with the engine at 4100-4500rpms which correlates to about 70-75 mph. The engine can do this all-day and all-night long. I've done several 36 hour none stop trips across the country to prove this!

IMHO, the Suzuki engines (1300/1600 8-vavles) are good for about 5500rpms. After that, they really don't make much more power and there is no point in reving them higher.

 

[AkDale]

Re: Safe max. RPM\'s

36 hours----Man you must really like pain

 

[Guest]

Re: Safe max. RPM\'s

In reply to:

IMHO, the Suzuki engines (1300/1600 8-vavles) are good for about 5500rpms. After that, they really don't make much more power and there is no point in reving them higher.

[/ QUOTE ]

I couldn't agree more......I have had both motors and after about 5,500 RPMS they just make noise.

 

[gi_zuk]

Re: Safe max. RPM\'s

Yeah, two of those 1000+ mile trips were in a Samurai flat-towing another Samurai across the country!!!!!!

I did my first trip back in 1997 when I pulled a Samurai with a Samurai from Georgia to Oklahoma. I did my second trip last spring when I towed a Samurai with a Samurai from Virigna to Oklahoma! It was a little tiring.

I've driven my Samurai #2 from Oklahoma to both coasts about 10 times (lots of military traveling) and I even took the same one with me to Germany for four years and logged on about 50K miles there! FYI, I bought it back in 1996 for $800. Best $800 I ever spent!

Now, if I could just buy a 2001 LWB Turbo Diesel Samurai here....up thru Guatemala, thru Mexico...

 

[2249]

Re: Safe max. RPM\'s

well as much as i hate admit it I never watch the tack

! but grumpy has tons of video with me holding my foot on the floor for SEVERAL minutes at a time, and Several times for as long as 5 minutes or more

! I'm a gluttin for punishment on my "toys"!!!! anyhow I am totaly sold on the 1.3 they are so "strong" that they just don't wanna die in that manner!!! so next it is to the 1.6 to see how it does for me

!

 

[2868]

Re: Safe max. RPM\'s

Remember, the Swift GTi motor will spin up to 8600 with only a chip.

 

[AkDale]

Re: Safe max. RPM\'s

You must be holding your butt cheeks just right.
I have two 1.3 blocks that came in my two 88 zukes.
Don't know what caused the rod cap to come off of one, nor what caused the rod to break on the other. But sure enough, there are holes clean through the blocks.

 

[Guest]

Re: Safe max. RPM\'s

the 1.3 is a great engine if maintained, most were not . by the time we buy sammys used the engine have been dogged on and abused...so they let go when romped .one in good conditoin can rev like hell and be fine.

the 1.6 8 vaulve blocks on the other hand ...don't like the high rpms and will let go after a high rpm flogging.i've done it twice.both times they got me home though.

 

[3693]

Re: Safe max. RPM\'s

zukikid: How high do you think an 8-valve can be consistently run without being in danger of it self-destructing? I run mine down the freeway at 4000 to 4200 rpm's consistently, am I living on borrowed time?

 

[Sarge]

Re: Safe max. RPM\'s

Sustained 1.3 limit: 4500 (good, unabused engine)
Abused 1.3, rattling: 4000
Sustained 1.6 limit: 4000
Abused: 3500
The .500" stroke difference is the reason , plus the 1.6's rods are a lot lighter in the older 1.6 blocks . The really bad part about the two engines is the 8 weight cranks , the 1298cc better cranks in the Swift GT and some later Metro's as well as the 1.6 16v engines used 16 weight cranks , much better material and balancing . Here's a pic of the physical rod differences in the older 1324cc and 1598cc engines:
<img src=http://tellico.off-road.com/wwwthreads_uploads/777728-Rods2.jpg>

Sarge