installed a set of these on my boosted b18c. idled fine on start up. i noticed that the idle tone was much heavier than those of the itr's cams. went to street tune it and was like WTF. It sounded like a n/a high compression engine reving to 10k. it screamed so much like an all motor car. is this normal for the car to scream like that with the pro 1 cams?

 

1) Those are MUCH bigger cams than ITRs.

2) How is the tune? Do they run fine and make power?

3) They 'scream'? Do you mean they are louder or did the tone change......give us something remotely useful to work with here.

 

yEA THE PRO 1S ARE ALOT LOUDER.I had the type r and switched them out, it vibrates my whole car super bad,but they made great power!!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Top Ramen &raquo;</TD></TR><TR><TD CLASS="quote">1) Those are MUCH bigger cams than ITRs.

2) How is the tune? Do they run fine and make power?

3) They 'scream'? Do you mean they are louder or did the tone change......give us something remotely useful to work with here.</TD></TR></TABLE>

just a rough tune @ 11psi on pump. these cams takes more fuel. the tone definitely changed. it sounds like a F1 car. will be tuning at a higher boost on the dyno with race fuel.


Modified by b00stedbyFastrax at 1:03 PM 5/10/2008

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18c1turboedEK &raquo;</TD></TR><TR><TD CLASS="quote">yEA THE PRO 1S ARE ALOT LOUDER.I had the type r and switched them out, it vibrates my whole car super bad,but they made great power!!! </TD></TR></TABLE>

Do you've any dyno sheets for comparison? Would be interesting to see how big of a difference there is. What's your setup?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Pompiuses &raquo;</TD></TR><TR><TD CLASS="quote">

Do you've any dyno sheets for comparison? Would be interesting to see how big of a difference there is. What's your setup?
</TD></TR></TABLE>

no dyno sheet for comparison. tony1 had a test while back with these same cams.
I don't expect to see results as tony1 had, as his setup is more extreme than mine's. but there is definitely gains to be seen with these cams.

setup is B18C1 84mm, 9:1 CR, Portflow head with .5mm oversized valves, Edelbrock Intake, 70mm TB, FR Ram Horn Mani, Gt40r (for now, have a BW in the waiting).

 

Should be good keep us updated with your results...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b00stedbyFastrax &raquo;</TD></TR><TR><TD CLASS="quote"> it sounds like a F1 car. </TD></TR></TABLE>

Probably a result of more overlap and the relatively long duration on the exhaust side. Of they make power, I wouldn't be too hung up on the sound.