Author Topic: Exhaust system - Dyno tuning? (Read 11411 times)

StephenSLR · « **on:** November 26, 2012, 01:09:28 pm »

Well, as mentioned before in my car’s thread the exhaust noise is quite loud and I’ve received a complaint from a neighbour. I have been getting home at 1 am on Sunday nights/Monday mornings so I can’t blame the guy.

I’m going to try get to finish band rehearsals earlier for the meanwhile and as much as I don’t want to, as a last resort I may look into getting the exhaust toned down in the near future so I’m just checking out my options.

Currently I have cast exhaust manifolds going into a dual system with 45 series flowmasters. I’m thinking of upgrading to extractors, an x-pipe and quieter mufflers that won’t rob it of too much power. Engine is a 302 with 351 Cleveland 2V heads.

On the Torana forum some have had good words about Sureflo, they do a dyno test to work out what’s suitable.

http://www.surefloexhaust.com.au

I’m not sure how they are with old Mustangs, has anyone here dealt with them or have other recommendations?

s

GLENN 70 · « **Reply #1 on:** November 26, 2012, 01:32:59 pm »

What a 302 w or 302 c .

StephenSLR · « **Reply #2 on:** November 26, 2012, 01:37:30 pm »

Quote from: GLENN 70 on November 26, 2012, 01:32:59 pm

What a 302 w or 302 c .

My guess is Windsor.

1969 302 Ford engine with serial 9K18xxxx

I've been told elsewhere it would've came out of a Maverick built in Kansas.

s

Frank70 · « **Reply #3 on:** November 26, 2012, 01:40:12 pm »

A Windsor with Clevo heads would make it a Boss/Clevor motor , no ?

Cheers,
Frank.

StephenSLR · « **Reply #4 on:** November 26, 2012, 01:47:09 pm »

Quote from: Frank70 on November 26, 2012, 01:40:12 pm

A Windsor with Clevo heads would make it a Boss/Clevor motor , no ?

It's likely the 302 was built to resemble a Boss as I don't think the Maverick came out with them?

s

Frank70 · « **Reply #5 on:** November 26, 2012, 02:00:10 pm »

Hmmm ... I'm no expert on Bosses, and there is more to a Boss than the Clevo heads, but if you have a Windsor with Clevo heads, then you would need a unique Boss-style intake , so essentially you have a Boss config motor.

I dont think the Boss motor came in a Maverick, but again , I am no expert.

Nice bit of kit then.

Cheers,
Frank.

Ash · « **Reply #6 on:** November 26, 2012, 02:04:10 pm »

Post up some photos Stephen, front of the motor and etc.

Here is what my Clevor looks like.

GLENN 70 · « **Reply #7 on:** November 26, 2012, 02:18:27 pm »

Someone has being playing ,a 302 w no problems ,even a boss style manifold no probs ,australian 302 , 2 v heads really . If from the states they did not have 302c heads are more likely 351c . 302 aussie heads are closed chamber .If you want extractors you will have to get them custom made .Notice the balancer hmmm .On the inside corner of heads facing up is there a 2 or a 4 or 4 dot .

Ash · « **Reply #8 on:** November 26, 2012, 02:25:10 pm »

Quote from: GLENN 70 on November 26, 2012, 02:18:27 pm

Someone has being playing ,a 302 w no problems ,even a boss style manifold no probs ,australian 302 , 2 v heads really . If from the states they did not have 302c heads are more likely 351c . 302 aussie heads are closed chamber .If you want extractors you will have to get them custom made .Notice the balancer hmmm .On the inside corner of heads facing up is there a 2 or a 4 or 4 dot .

Me? This motor was last in an XW. They are 2V heads with genuine 69 Boss intake.

StephenSLR · « **Reply #9 on:** November 26, 2012, 03:39:59 pm »

Quote from: Ash on November 26, 2012, 02:04:10 pm

Post up some photos Stephen, front of the motor and etc.

s

GLENN 70 · « **Reply #10 on:** November 26, 2012, 04:20:49 pm »

OK makes more sense now ,should be a nice little engine with 2 v heads ,4 v heads are to big in the ports ,good on a 400 cu in plus engine just .

Ash · « **Reply #11 on:** November 26, 2012, 04:36:07 pm »

Looks like a Windsor intake with the water pipe arrangement there. Bit hard to tell but if you are sure it has Clevo heads, could very well be a Clevor.

StephenSLR · « **Reply #12 on:** November 26, 2012, 04:46:19 pm »

Quote from: Ash on November 26, 2012, 04:36:07 pm

Looks like a Windsor intake with the water pipe arrangement there. Bit hard to tell but if you are sure it has Clevo heads, could very well be a Clevor.

I'm just going off the ad which mentioned it was professionally built, had 351 Cleveland 2V heads and Boss B&A intake.

s

GLENN 70 · « **Reply #13 on:** November 26, 2012, 04:49:08 pm »

It is a windsor and clevo heads ,did it have a 4 on the heads .

StephenSLR · « **Reply #14 on:** November 26, 2012, 04:56:05 pm »

Quote from: GLENN 70 on November 26, 2012, 04:49:08 pm

It is a windsor and clevo heads

Yep.

Quote from: GLENN 70 on November 26, 2012, 04:49:08 pm

did it have a 4 on the heads .

No idea, I didn't get to see it being built, am curious about the cam too, sounds very lumpy.

s

Camaro91 · « **Reply #15 on:** November 26, 2012, 05:01:56 pm »

Just buy the neighbour a set of ear plugs and tell him to sleep less during the day. That way he will have a nice deep sleep at night when you return ... and will not hear you :). Easy, no more complaints.

GLENN 70 · « **Reply #16 on:** November 26, 2012, 05:26:13 pm »

W hat i am asking are they 4 v heads ,in your pic on the right side of head were the chain is sitting right on the corner of head near valve cover there is a flat surface that sometimes has a raised letter 4 on it ,and sometimes a 4 and a dot next to it ,sometimes nothing .