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ZUKIWORLD Discussion Forum => Technical Discussion - Beginner / Repair => Topic started by: defispeed on August 06, 2012, 12:45:11 PM

Title: How fast should a 1.6 EFI 8v be?
Post by: defispeed on August 06, 2012, 12:45:11 PM

Hi guys,

I recently got a sami with 1.6 EFI 8v swapped in. History unknown unfortunately.

Just did a tune-up - plugs, wires, 02 sensor, Accel Coil, seafom - the basics.

With some help from guys on here, finally got it started...

It runs quite well 1-3 gears pretty peppy actually, but once you hit 4th, she falls on her face...no power, 5th is a rare occurence. Tops out at about 50-55mph.

It has 31s and SPOA, I don't believe it's been re-geared.

Is it that necessary to re-gear for just 31s? Is there anything I should look at?  I've never driven a sami with this motor swapped in before, so I am not sure what to. compare it to.

With the condition of the motor unknown, I'm probably doing a leak down test this weekend and check the timing.

I have no intentions of driving this thing at 70 or 80mph, but I'd like to know that it could get there!

Thanks!

Title: Re: How fast should a 1.6 EFI 8v be?
Post by: Skyhiranger on August 06, 2012, 01:28:36 PM

I would say it needs regeared.  4.62s are a popular option with 31s.
Timing check, compression check and leakdown test are all good ideas.  The last two will give you a good idea on what kind of condition the engine is in.

Title: Re: How fast should a 1.6 EFI 8v be?
Post by: defispeed on August 06, 2012, 01:57:20 PM

Thanks for your response, and thanks for the help in my previous thread...I felt like an idiot, I wasn't very clear...

So 4.62s are popular for 31s, I don't plan on going any larger, as it sits this is just a decent little trail rig. SPOA and 31s.

Definitely doing those tests this weekend!

Do you have any experience with a Torquer cam? Header recommendation? Is it worth spending the extra money going Thorley vs others like Pacesetter?

Title: Re: How fast should a 1.6 EFI 8v be?
Post by: Skyhiranger on August 06, 2012, 03:10:29 PM

Quote from: defispeed on August 06, 2012, 01:57:20 PM

Thanks for your response, and thanks for the help in my previous thread...I felt like an idiot, I wasn't very clear...

So 4.62s are popular for 31s, I don't plan on going any larger, as it sits this is just a decent little trail rig. SPOA and 31s.

Definitely doing those tests this weekend!

Do you have any experience with a Torquer cam? Header recommendation? Is it worth spending the extra money going Thorley vs others like Pacesetter?

I put a cam, header and high flow exhaust on a 1.6 8V sidekick I had years ago.  I didn't really see any difference....at least not enough to warrant the cost of it all.  Others may have different opinions.