Jun-18-2018 06:18 AM
Jul-01-2018 10:14 AM
Jun-19-2018 05:45 PM
Jun-19-2018 05:10 AM
Jun-18-2018 10:17 PM
Gjac wrote:F4Jock wrote:. I an happy with the 30% performance increase with the ceramic coated Thorley Headers, Banks are probably better but much more expensive. Check your exhaust manifolds for leaks or cracks, some of the noise you hear may be coming from that. Is the MH new to you?Gjac wrote:
I think any 460 or 454 will do well with the addition of headers, FF muffler and a CAI. Both run hot and have a tendency to crack exhaust manifolds especially when pulling long hills with a tow on a hot day. Headers will not only give you about 80 more HP for pulling hills but reduce the heat generated and reduce the constant downshifting and fan clucth noise you have now. Also you can add another layer of insulation to the inside of the doghouse to reduce the noise and heat. These mods all helped me with my older 454. Also look at your towing capacity for your MH it is probably 5000 lbs, but a lighter car would be better something under 3000 lbs. Does the MH run hot now on hills without a tow?
Temp goes up some but as yet not hot. Really haven't stressed it too much though. Whose headers do you recommend?
Jun-18-2018 07:25 PM
F4Jock wrote:. I an happy with the 30% performance increase with the ceramic coated Thorley Headers, Banks are probably better but much more expensive. Check your exhaust manifolds for leaks or cracks, some of the noise you hear may be coming from that. Is the MH new to you?Gjac wrote:
I think any 460 or 454 will do well with the addition of headers, FF muffler and a CAI. Both run hot and have a tendency to crack exhaust manifolds especially when pulling long hills with a tow on a hot day. Headers will not only give you about 80 more HP for pulling hills but reduce the heat generated and reduce the constant downshifting and fan clucth noise you have now. Also you can add another layer of insulation to the inside of the doghouse to reduce the noise and heat. These mods all helped me with my older 454. Also look at your towing capacity for your MH it is probably 5000 lbs, but a lighter car would be better something under 3000 lbs. Does the MH run hot now on hills without a tow?
Temp goes up some but as yet not hot. Really haven't stressed it too much though. Whose headers do you recommend?
Jun-18-2018 05:23 PM
Jun-18-2018 05:12 PM
Jun-18-2018 08:07 AM
Jun-18-2018 07:50 AM
Jun-18-2018 07:33 AM
Yankee Clipper wrote:
What you are experiencing is what's call the "460 roar." The transmission intercooler kicks in when the engine temp goes up under load, and between the mechanical and turbo noise, it can startle you even after you think you're ready for it. The good news is I can watch the engine temp go down almost immediately after the intercooler kicks in.
One piece of advice: if you're towing in hot weather, give the engine a chance to cool down some before you shut down the engine, otherwise the exhaust manifolds might tend to warp and spit bolt caps off. Happened to me, and I had to replace both the right manifold and the bolt set (and Ford gets $112 for a set of manifold bolts (really)). Hope this helps,
Jun-18-2018 07:32 AM
Gjac wrote:
I think any 460 or 454 will do well with the addition of headers, FF muffler and a CAI. Both run hot and have a tendency to crack exhaust manifolds especially when pulling long hills with a tow on a hot day. Headers will not only give you about 80 more HP for pulling hills but reduce the heat generated and reduce the constant downshifting and fan clucth noise you have now. Also you can add another layer of insulation to the inside of the doghouse to reduce the noise and heat. These mods all helped me with my older 454. Also look at your towing capacity for your MH it is probably 5000 lbs, but a lighter car would be better something under 3000 lbs. Does the MH run hot now on hills without a tow?
Jun-18-2018 07:04 AM
Jun-18-2018 06:57 AM