Swift 1.6vvt engine into a 2007 vvt jimny project

Rhinoman wrote:

Riccy wrote: A thought has occurred regarding braking... or the inadequacy of it in relation to a more powerful engine..
Riccy.

It rather depends on what you intend to do with that power. Braking power is relative to weight and speed, the engine is about the same weight and if you aren't going any faster then then you don't need extra braking. The 1.6 is lower revving so with the same gearing the top speed is usually a little lower - I don't think anyone ever really notices because not many modified Jimnys are driven at high speeds. If you are overgeared then you may get some top speed improvement but its unlikely to be as fast as a stock Jimny.

I can confirm top speed is definitely higher with the 1.6. Although it peaks slighty sooner, the 1.6 is still making more power than the 1.3 at 6,000rpm. Not that the 1.3 will pull 6000rpm in 5th...

It's not the braking from top speed that's a problem, it's the braking from speeds previously inaccessible to a Jimny in a short space......much akin to moped riding V getting on a sportsbike where it's all a bit more serious.

Keithy wrote: It's not the braking from top speed that's a problem, it's the braking from speeds previously inaccessible to a Jimny in a short space......much akin to moped riding V getting on a sportsbike where it's all a bit more serious.

And how quickly you can get back up to speed to get another heat cycle in the brakes.

Do any of the Jimny models have a rev limiter? Mine revs freely but hits a wall at 5500 rpm.

Thanks for the reply's,

I will get the swift engine stripped down this weekend (dependant on weather) and have a look at the throttle body and try and post some pics. i think it might be different to the liana inlet system, but will post some pics of it for info.

The braking issue is something ive had issue with for a while. Its mainly manifest when towing, and has got worse since going to 235 tyres, to the point where i wonder if it will stop sometimes. I have also managed to warp discs in the past with it so i think some extra braking will help (and please the insurance company!).

Im not really after top end speed, mearly want to be able to use 5th gear on anything other than a downhill again it would be nice to be able to sit on the motorway at 65-70 without changing gear and revving its nuts off also!

1066Boy wrote: Do any of the Jimny models have a rev limiter? Mine revs freely but hits a wall at 5500 rpm.

Yes they all do. The limiter cuts in at around 6,600rpm on the m13 and I think higher on the earlier G series engines. Peak power isn't until 6,000rpm so it should sail past 5,500.

Riccy wrote:
The braking issue is something ive had issue with for a while. Its mainly manifest when towing, and has got worse since going to 235 tyres, to the point where i wonder if it will stop sometimes. I have also managed to warp discs in the past with it so i think some extra braking will help (and please the insurance company!).

Taller tyres reduce braking power as they act like a longer lever working against the same small brakes. Are you towing a braked trailer? If so check the overrun brakes are working freely, as you should notice very little affect on your braking with a correctly working system. If it's unbraked, consider a braked trailer!

Riccy wrote: it would be nice to be able to sit on the motorway at 65-70 without changing gear and revving its nuts off also!

The sport engine should be better than the Liana engine I have in mine....here's how that engine cruises up the highest motorway in England.

hmmm, long time since mine has seen the outside lane of a motorway! it looks like your sitting fairly comfy at whatever speed you were doing (70+?)

Busta you are right; larger tyres make it worse braking. The trailer i use with the jimny is one of them tiny little camping trailers with no brakes, which has the advantage of being very light and easy to store when not in use (sits on its back end up in the air, actually fits through a standard door like that). when its full its usually logs or building materials (which probably takes me over the jimnys 350kg weight limit). Building a new trailer with jimny sized wheels and some brakes is another 'project' i have lined up, but a shortage of hours in the day is stopping that one currently

I have a larger 8x4 twin axle plant trailer at work that i can borrow to tow with the jimny, but as it weighs nearly 1200kg with nothing in it, its a bit useless (work use it for a 2ton scissor lift usually). Its also bulky, wider than the jim and has no cover. was a bit of a brown trouser outing the one and only time i tried it on the jim!

Just cruising Riccy.....I don't half miss the turbo....it was quieter in the cab!

Have a look at these callipers....early Vitara ones......vented discs are from a Diesel Jimny.....haven't warped yet!




I did the brakes prior to gaining more power........I have discs on the rear too.

Everything fitted straight on and improved the situation.

Old calliper is on the floor in that picture.

1066boy- I was wrong about the rev limiter, I checked this evening. It cuts in at 7,000rpm on the m13a. That's 500rpm past the redline.