[real57vetteguy]

Hi Guys,

I am looking forward to getting advice from E3Sean, Jbig, and Mustank and the rest of the of the room, pertaining to my question. I want to make it clear that I bought the car with these mods already done. It looks as if someone just randonly picked parts out of a magazine ad. I think the intake is wrong, the throttle body is too small etc, but now I am adding a 9 lb supercharger so it all changes. here are a list of mods.

331 dss stroker
main support system
trick flow street heat heads 170's
trick flow R series intake
24 lb injectors (will be upgraded to 42lb for supercharger)
high flow water pump
griff 4 core alum radiator
elec fan with heat sensor
msd 6A
msd Billit disribtor
1.6 roller rockers
trick flow stage 2 cam
C&L 73 mm Mass Air (I have a PRO-M with fuel optemizer for supercharger)
BBK 70 MM throttle body
BBK shorty headers
BBK H-pipe
255 lph fuel pump
3:73 rear

The stock rev limiter is still in the car, I might take it to the track a couple times a year, driveability is a major issue, I will only put 2-5k miles a year on this car if that but I do want to be able to do some cruise ins, and be able to drive it when I want on pump gas. Compression is 9:5 to 1

Thanks

[R0B0T]

what's your question?

[FastStang91Lx]

Intake is fine, cam with supercharger is not the best. Too much overlap. Even TF will tell you that. I would jump to 75mm TB, and add a boost a pump if you are still running the stock fuel lines/rails. A bigger head wouldn't hurt, but that's your call. That's my opinion...

[real57vetteguy]

The question is the combo in general. What could I do to tweak the performance of the car yet remain a dependable driver. Is there anything in this current combo hurting performance?

[93mustank]

Originally Posted by FastStang91Lx cam with supercharger is not the best. Too much overlap. Even TF will tell you that.

Intake Opening: 5° BTDC
Intake Closing: 39° ABDC
Exhaust Opening: 53° BBDC
Exhaust Closing: 1° BTDC

4 degrees at .050 is too much?

[93mustank]

Originally Posted by real57vetteguy The question is the combo in general. What could I do to tweak the performance of the car yet remain a dependable driver. Is there anything in this current combo hurting performance?

Truthfully its a boosted motor...If you want more power put more boost through it. Make sure the tune and fuel are up to par and crank up the boost for more power.

[real57vetteguy]

Thank you, Who would you suggest to grind the cam?

[R0B0T]

he will suggest jay allen at camshaft innovations...

he is very good... however it will be a while before you can get your cam... he is having some issues with his health right now...

there are other cam grinders out there who know what they are doing also. jay just seems to be the most popular.

[real57vetteguy]

I hear he is fantastic, although I would like to get the cam within 3-4 weeks if possible, any other suggestions?

[R0B0T]

ed curtis is another popular cam grinder, so is buddy rawls.

[FastStang91Lx]

Originally Posted by 93mustank Intake Opening: 5° BTDC Intake Closing: 39° ABDC Exhaust Opening: 53° BBDC Exhaust Closing: 1° BTDC 4 degrees at .050 is too much?

I would say so.... Why would you want to blow ANY of your boost out your exhaust... That's just silly and will hurt your overall psi... I'm no expert by any means, but you should prolly stick to your N/A motors... Not to mention that 4 degrees is a .050... and the cam is 542/563 which will inflate that 4 degree number, now won't it... mister cam expert...

[93mustank]

Originally Posted by FastStang91Lx Not to mention that 4 degrees is a .050... and the cam is 542/563 which will inflate that 4 degree number, now won't it... mister cam expert...

Hahahah....

The total lift with 1.6 rockers affects the the 4 degrees????

Its measured at .050 how in the hell would it inflate....

Oh and buy the way the tfs2 cam is the same as an anderson b4 cam.

I will stick to my n/a motors .... You stick to your heavy flywheels

[93mustank]

Originally Posted by R0B0T he will suggest jay allen at camshaft innovations... he is very good... however it will be a while before you can get your cam... he is having some issues with his health right now... there are other cam grinders out there who know what they are doing also. jay just seems to be the most popular.

I would not suggest Jay Allen..... I waited 3.5 months for the a cam. And its been a week and I dont even have a cam card. Nothing but ignoring emails and gets mad when ask him whats going on.

Unless you have your own cam doctor at your house look else where.

I would suggest Bullet Cams....I will be tryin them next.

[87superduperstang]

I am running a trickflow stage 2 cam with my supercharged engine pushing 10 - 11 pounds and made 465 at the wheels .Im not an expert but the guy who built my engine suggested this cam and for what everyones calls an off the shelf i think it works great plus i couldnt go with any more power without pushing the limits of my block. just my 2 cents

[93mustank]

Originally Posted by FastStang91Lx I would say so.... Why would you want to blow ANY of your boost out your exhaust... That's just silly and will hurt your overall psi... I'm no expert by any means, but you should prolly stick to your N/A motors... Not to mention that 4 degrees is a .050... and the cam is 542/563 which will inflate that 4 degree number, now won't it... mister cam expert...

Please follow up on this statement....

[FastStang91Lx]

Originally Posted by 93mustank Please follow up on this statement....

Allright JackAss... I missed the 1.6, not 1.7 was thinking of a different thread. BUT I thought you were the 'cam god', you should know better than that anyway. Boost psi is dependant upon being able to pressurize something. You can't build as much pressure if you have a valve open, so to speak. Same reason the psi of your blower on a 302 is less on a 347. Your motor is taking more air away per intake stroke leaving you with less pressure built up before the next opening. And if you don't believe this, and I Quote:


"Because of the negative effects of overlap on a supercharger car's performance, and especially in the case of high exhaust back pressure as is the case with most factory supercharged cars, we find that the optimal cam duration for the intake cam is typically 30-40* of duration less than a normally aspirated camshaft for the same peak power RPM. The decision to reduce the intake cam duration rather than split the duration reduction between the intake and exhaust cams, is that the intake cam will flow air under pressurized conditions (due to the addition of the supercharger and the increase in intake manifold pressure) and so at a reduced intake cam duration the engine will still be able to get it's full share of intake air. At the same time, the high rpm efficiency improvement from the reduction of overlap will also boost power production with a more conservative cam. Finally, if we would like to get more flow from the intake cam, there is still the option of using a higher lift camshaft (with a steeper profile due to the decreased duration) with supporting valve train modifications to make sure valve float doesn't occur at higher rpms."

CHEW ON THAT

[flyin ryan]

Don't have much more to add then waht's been said already. THe combo looks good

Originally Posted by FastStang91Lx Intake is fine, cam with supercharger is not the best. Too much overlap. Even TF will tell you that. I would jump to 75mm TB, and add a boost a pump if you are still running the stock fuel lines/rails. A bigger head wouldn't hurt, but that's your call. That's my opinion...

Only thing is that I wouldn't worry about replacing the stock fuel lines or adding a boost a pump because neither is needed in my opinion. Fuel lines aren't any more restrictive then the rails are and walbro 255's supply 450hp safely so I'd put the money towards getting your tune tits

[93mustank]

Originally Posted by FastStang91Lx Allright JackAss... I missed the 1.6, not 1.7 was thinking of a different thread.

Dont lie and try to back track..... Nothing in here states anything to do with rocker ratios.

"Not to mention that 4 degrees is a .050... and the cam is 542/563 which will inflate that 4 degree number, now won't it... mister cam expert..."

[88Saleen]

i think both of you will need new key boards!! calm down yall

[FastStang91Lx]

I wasn't thinking correctly... I was thinking @ .500 not .050 Was having a brain fart. And I DON'T lie, shithead. I seriously thought that this guy had 1.7's inflating the duration. I don't claim to be a cam expert by any means, like you do. But I do know that this is NOT the best cam for a boosted application, or any overlapping cam. SO PISS OFF