Outer Limits 4x4 Board

Hey people i have just bought a 93 suzuki sierra it has 31 inch muddies on it rear lock right locker 3 inch body lift 3 inch spring lift ect ect but the problem i am having it is very slugish after about 85 to 90 kmp any suggestions on how to make the little 1.4 go a bit better with out conversion or spending big money cheers

fitted new diff gear min 4.1 0r 4.6 or 5.1 from vitara very cheap

When you find out let me know haha

Mine tops out at 100kmh. (80 on the speedo) im running 33's.

Remember if you have 31's that your speedo is out. so 85-90 could be well over 100kmh

Mike

ps. did you mean 1.3 or 1.4?

If you have a 1.4 then some one has already put a bigger motor in it.
Sierras come with 1.3.

Fit transfer or diff gears to get your final drive ratio back to standard.
A search of the bible or threads will reveal at least 100 threads on this topic.

Jas.

Lower it by around 3 inches for less wind resistance

VR Rodeo wrote:Lower it by around 3 inches for less wind resistance

how is lowing going to lower wind resistance? no being a smat ass but i dont see how it would? i do under stand all race cars are low but there like 10mm of the ground

brendan_h wrote:

VR Rodeo wrote:Lower it by around 3 inches for less wind resistance

how is lowing going to lower wind resistance? no being a smat ass but i dont see how it would? i do under stand all race cars are low but there like 10mm of the ground

3 inch chop on roof!.......sierra speedster....

brendan_h wrote:

VR Rodeo wrote:Lower it by around 3 inches for less wind resistance

how is lowing going to lower wind resistance? no being a smat ass but i dont see how it would? i do under stand all race cars are low but there like 10mm of the ground

Same principle, anything that is lower to the ground will be less bulky and create less wind resistence. Admittedly it wont make much difference but he wanted a cheap, easy fix 31's will fit on 3 inches of lift and there is no real cheap or easy power fix for the 1.3. Webers require fiddly tuning, extractors/snorkels do bugger all and gears make it more 'driveable' off the mark and on hills but the 1.3 runs out of puff much over 90 k's.

VR Rodeo wrote:

brendan_h wrote:

VR Rodeo wrote:Lower it by around 3 inches for less wind resistance

how is lowing going to lower wind resistance? no being a smat ass but i dont see how it would? i do under stand all race cars are low but there like 10mm of the ground

Same principle, anything that is lower to the ground will be less bulky and create less wind resistence. Admittedly it wont make much difference but he wanted a cheap, easy fix 31's will fit on 3 inches of lift and there is no real cheap or easy power fix for the 1.3. Webers require fiddly tuning, extractors/snorkels do bugger all and gears make it more 'driveable' off the mark and on hills but the 1.3 runs out of puff much over 90 k's.

well I dont agree with you at all. extractors make a big difference and so do gears.
the difference between stock exhaust vs extractors and 2 1/4 pipe and new muffler is massive
and getting the gearing back to standard for highway work makes the most sense of any of it! its easier to hit 100 when you have five gears to do so and the proper loading of the motor at 100. its no good being at 100 in 5th if your only going to be revving at 1500 rpm, it just doesn't work!

maybe you need a fresh motor aswell, but the mods you think are useless will help alot!

TUFFZUK, do a bit of a simple tune up, plugs, leads, coil, maybe a dissy cap.
get a decent exhaust and extractors, get your carby tuned?
return your ratios back to normal for highway, I would propably go for tranfer gears as with 31s you will gain back stock highrange ratio, but have a much better crawl ratio, if you do put in diff gears your transfer ratio is stock and that can get a bit anoying when you are hitting things with just a little bit too much pace! then you will want transfer gears anyway, but that will make your high range gearing lower than standard as you have transfer and diff gears, but then you can upgrade and go to bigger tyres!
oh and the more rubber you have on the road the more drag you are creating on the car, the more power you will zap!
so dont run low pressures all the time, sure its comfy but you will lose speed and econemy!

I had a sierra with 37 mtrs, hilux diff with 5.29, 6-1 rockhoppers and I think its ratio may have been a smidge under standars, it also had a 1.6 carby vit motor, but it flew along! would do 110 - 120 on the freeway without full throttle and it got there fast too!
the load on the motor was less than the factory gave it!
it was revving at 4000 rpm at 110, but even though it went over the wiegh bridge at 1150kg it was easy for the motor to push due to gearing!

well that was a novel I think I need a sleep!
ashley

don't worry, 31's and 5.1 diff gears you will still have plenty low range.

germo wrote:well I dont agree with you at all. extractors make a big difference and so do gears.
the difference between stock exhaust vs extractors and 2 1/4 pipe and new muffler is massive
and getting the gearing back to standard for highway work makes the most sense of any of it! its easier to hit 100 when you have five gears to do so and the proper loading of the motor at 100. its no good being at 100 in 5th if your only going to be revving at 1500 rpm, it just doesn't work!

maybe you need a fresh motor aswell, but the mods you think are useless will help alot!
ashley

Dont get me wrong, I never said they were useless

I agree with you on the gears being about the best option for him, so long as he realises that at the end of the day 47kw is never going to make a V8 supercar without some money being spent on it.

extarctors and exhaust, 32/36 Weber, service motor

VR Rodeo wrote:

germo wrote:well I dont agree with you at all. extractors make a big difference and so do gears.
the difference between stock exhaust vs extractors and 2 1/4 pipe and new muffler is massive
and getting the gearing back to standard for highway work makes the most sense of any of it! its easier to hit 100 when you have five gears to do so and the proper loading of the motor at 100. its no good being at 100 in 5th if your only going to be revving at 1500 rpm, it just doesn't work!

maybe you need a fresh motor aswell, but the mods you think are useless will help alot!
ashley

Dont get me wrong, I never said they were useless

I agree with you on the gears being about the best option for him, so long as he realises that at the end of the day 47kw is never going to make a V8 supercar without some money being spent on it.

yeah your right, its all relative, I just assume people realise that it is only a 20yr old 1.3l technology, not the latest 6L v8.

to Assume is to make an ASS of U and Me. ASS-U-ME

I have realised this year after buying another suzuki that I have a problem, I might be a zukaholic

ashley

extractors will not make any noticeable difference to a stock 1.3 (it will sound quicker tho) getting your engine in good nick would be better like sevice,plugs maybe carby kit,rebuild,etc etc... i have had alot of 1.3 sierras and my sierra with extractors lukey exhaust made no difference, yet my other sierra stock exhaust etc seemed like it had twice the power the only difference was that it had low ks,

They are not very aerodynamically friendly

skez wrote:extractors will not make any noticeable difference to a stock 1.3 (it will sound quicker tho) getting your engine in good nick would be better like sevice,plugs maybe carby kit,rebuild,etc etc... i have had alot of 1.3 sierras and my sierra with extractors lukey exhaust made no difference, yet my other sierra stock exhaust etc seemed like it had twice the power the only difference was that it had low ks,

???? er. so stock is as good as it gets. Yea goodo. Myself and everyone else who has ever added this useless piece of junk will larf at this stupid statement.

5.14 calminis for the transfer is for you bud it will go good on the road and off it my last puppy had this set up 31s..lift 5.14s it went good

as i said wont make any noticable difference on a stock engine and yes i put one on mine and still have it, so if ure saying when u drove out of the muffler place you noticed a power difference not just a loud exhaust maybe your old exhaust had leaks or something beacause evan if it did gain some hp u wouldnt be able to feel the difference it would that small might see it on a dyno tho, its a bit like putting premium in your stocko i cant notice the power difference its still slow as shit

skez wrote:as i said wont make any noticable difference on a stock engine and yes i put one on mine and still have it, so if ure saying when u drove out of the muffler place you noticed a power difference not just a loud exhaust maybe your old exhaust had leaks or something beacause evan if it did gain some hp u wouldnt be able to feel the difference it would that small might see it on a dyno tho, its a bit like putting premium in your stocko i cant notice the power difference its still slow as shit

Made a massive differance to power and fuel economy when I did it to my Nissan, and expect it will make a reasonable amount of differance when I do the exhaust on the Suzi. Even though the suzuki is only a small engine, it can not be expected to breathe properly through that thickshake straw we call a standard exhaust, and after 20 years I expect there will be some sort of blockage in the catalytic convertor. I'll be awfully suprised if there is no differance in power when I do the exhaust, especially around the top end which is where it really suffers now.

we can all rave on about extractors etc, yes they make a difference, but not one i've ever been impressed with. the best thing to do is make sure the air fuel mixture is right, and forget about 32-36's, they are crap and nothing but trouble offroad. a thing to do wether you have a sierra carby, or better yet, a vitara carby is to super glue the tamper-proof mixture screw (so it can be adjusted with fingers), let it harden then take it to someone who can get CO levels to what they should be at idle. all sierra and vit carbs burn too rich. try this as its cheap and you WILL notice the improvement.

hey, i bought a swift gti engine for my zook this week. 200 bucks

and i looked on wiki and its about a 20 kw increase and relatively easy to install. ( almost same engine ) id suggest doing that.

They are very revvy, and don't necessarily offer the best for a sierra off road...