Got a random email today telling me how to get More Hp out of my CA????

[driftin8ez]

Well i just got some random email from one of our fellow CA'ers over in europe. I dont know aything about the guy but he seems to think i can get a few hp and tq for free. Here is a Direct quote of his email. Anyone have any opinions on this?

"I see that U have S13 Ca18DET. Its very popular engine in Europe.If you want to have an extra torque and HP put you intakie cam 1 tooth right. (faster the cam). It will give u extra 20Nm and 6-8bhpto a Ca18det with only T28 turbo and sus power intake. Try out this tune, it is only 30min of work. Valves will not hit the pistons. "

[themadscientist]

he posted the same thing in one of the threads here. I am not saying it would or would not work. It's the same thing an adjustable sprocket does so it's possible.

[driftin8ez]

Think it's worth a try when i do my t-belt job? Also is this with an exhaust cam on the intake side or does he just want to advance it using the intake cam? Also i have a spare motor with the cams should i slap on a duel exhaust cam setup or is it not really worth the trouble?

[themadscientist]

One tooth sounds pretty close to the limit. I don't have a gear in front of me, how many degrees would that be 2 or 3?

[driftin8ez]

I think it might be 1 or 2 degrees. Do you know how many teeth are on a cam gear?

[r34 gtr]

wouldnt it be 10 degrees? its a lot bigger than a 1 or 2 degree jump.

[niscort]

1 tooth = 7.5 degrees on the cam pulley

[progman]

I have read in an A. Graham Bell book that most nissan motors respond well to 3-5 degrees advance on the intake and 2-3 degress retard on the exhaust. It's suppossed to boost up your VE. But then he goes on to say he would only do the timing adjustments on a dyno.... if one tooth is 7.5 degree I wouln't do it. I would buy adjustable cam pullies and do like 2 degree advance on the intake and 1 degree retard on the exhuast. Then wait for some dyno time.

I think the goal is to have the intake open a little earler to start getting the air/fuel in faster and have the exhuast open longer for that air/fuel to push the exhuast out more completly.

[driftin8ez]

I got anouther email back. The guy seems legit and knows what he is talking about. I may give it a try when doing my t-belt.

"Yes i'm. I'm searching buy/sell areas looking for some cheap parts.In Poland everyting is hard to get and we must import every part from England or USA.You can find some infos in our polish site " http://forum.turbokillers.com/index.htm " . There is a english version of forum and if you have any qwuestion guys will answer on it. Remember that S13 in europe appeared only with CA18DET and SR20DET in S14 & S14a and they have a big knowledge about CA's.It's the biggest Nissan 200SX site in Poland.I appeared also on turbokillers as andiqqqq.

This modyfication is for stock cam and CA16DE int. cam.I don't know how it works for tomei cams.Tomei's are allready tuned so tere is no need to change degree of cam. "

[niscort]

ya, but is he talking about the euro ca?? as the intake cams there are 248/8.5 compared to the jap intake at 240/7.8.. not to mention the actual lobe timing varies, which is basically all moving the cam pulley will do anyhow.

But it can be done using jdm ex cam from either a de or det(248/8.5).. research the lobe timings first if not using an adjustable pulley as the ex cams themselves are about 5deg out on lobe timing.

[bentvalves]

so are you guys saying if using a pair of tomei 256 cams, they are already matched and adjustable gears will be of NO benefit at that point?

[themadscientist]

I would use the gears regardless. If you have had a cleanup pass done on the head you just altered the timing and will need the adjustablity to actually run the cams "straight up".