"Easy mod" to get a little more fresh engine?

[Alex-svx]

I have maybe got some maf problems whit my car. So i just woundring are the some things it can bee done to the car to get litt more HP like change injectors and maybe fuelpump, ecu (hydra ems) or is this just necessary if you going turbo or sc?

Thanks.

[Alex-svx]

Is the nothing that can make the svx little more powerfull?

Maybe a stupid qvestion but what do the hydra ems do the svx if i bougt one of these? I understand that is difficult to tune the svx.

[Tapani]

The EG33 is a well developed engine, there's quite little you can do outside force feeding.

The gas exchange is tuned for mid range and it's really good in that. If you try to gain top end you will compromise this. A heavy daily driven car with an automatic tranny and tall gearing really needs all the midrange you can get. Increasing the rev range has proven to have difficulties which are NOT simple to solve.

The stock fuelling and engine management can support app 250hp. The MAF will saturate around there and you will also approach the injector limits.

The best practical way is to force feed, but this is a rather complicated project with many areas to cover and - should not be entered lightly. At the very least remember to take your wallet with you ��.

If you will not do significant mode to increase the air flow you do not need an open engine management system. On the other hand if you are sure you will super or turbo charge it then you may well start and learn how to install and tune an open system with the stock engine first. If you get it to run as good as stock you've done a very good job.

Kind regards,

T

[Alex-svx]

Ok the option to tune the car is verry little. So it wont help to change fuel inj and maf to nismo and a diffret fuel pump to add a little.
Then you must go for turbo or SC. I really want supercharger but i think this is verry hard to get . I really like the ECU one. But this i can just dream on to get. hehe I got 5speed but i really think to change to 6speed.

I have find a shop thas offer the hydra ems to svx. But if its so hard to tune then i dont need this eather.

Thanks for answere Tapani

[Tapani]

Yeah, you do not need more fuel if you can not get more air first - this is the key issue. The EG33 is a fine engine as it is from the factory, look at a same period 964 Porsche engine for example - 3,6 litres, 250 hp and 310 Nm of torque.

If you are not able or willing to do it all yourself then be even more careful. At least choose a system which has local support with experience from various applications - you may not find a shop familiar with the SVX, though, but I do not think this is a deal breaker. Most modern systems should be able to be used with the SVX.

But first, make a long term plan - what you really want - and what is street legal in Norway. Also, make rough budget for the whole project and commit to that.

Tapani

PS I did not realize you had a manual conversion. If the 5 speed holds up ok and your satisfied with the gear ratios there's little sense in going 6-speed. Close gear ratios are needed more if you have a narrow and high power band - which you don't. Enjoy the flexibility and strong midrange of the EG33 ! And, btw, the 6-speed weighs as much as the slush box - see photo.

[SilverSpear]

Port and Polish intake and exhaust passages if you are tearing your engine apart, ecutune chip with 300ZX MAF.