28 replies to this topic

[techieboy]

I can't believe how straight those two lines are. It's almost exactly what you'd draw on a blank piece of paper if somebody asked you to illustrate your perfect power chart. No nasty holes in the delivery anywhere. Top stuff.

[VIX]

[SteveM]

top stuff

[markv]

So is this the 3" 2bular compared to a 2.5" pipe system with a miltek NA endbox, or an miltek turbo end box? Is the original downpipe the milltek NA version or other? Mark

[jules_s]

I can't believe how straight those two lines are. It's almost exactly what you'd draw on a blank piece of paper if somebody asked you to illustrate your perfect power chart. No nasty holes in the delivery anywhere. Top stuff.

I really couldn't have put it any better than that....

[MAXR]

So is this the 3" 2bular compared to a 2.5" pipe system with a miltek NA endbox, or an miltek turbo end box? Is the original downpipe the milltek NA version or other?

Mark

These results are a direct comparison FROM a Courtenay custom straight through 2.5" front section with a Miltek (MSVX2202 Connecting Pipe) & MSVX2203 Rear Silencer to the 3" 2bular system. So if you have a standard Na system then an upgrade straight to a 3" 2bular is well worth the cost, in fact it's a no brainer! I would imagine any NA with or without a remap would see major improvements.

Costs are very competitive.

Max

[NickB787]

Not trying to sell something are we Max Looks great can't wait till next month

Edited by NickB777, 23 April 2008 - 09:15 AM.

[vxr36]

My manifold is not 2bular but it is a TMS 4 into one pipe. It is married to a T28 and then to the 2bular 3" exhaust. One point I would make is that the heat generated is absolutley mind blowing. The manifold glows a light orange even when on cruise. It is enough to melt at least one pipe every 200 miles or so. Problem is that the surface area and thinness of the manifold is an excellent heat absorber (not what you want in a car with very little air flow). I am having a number of mods done to fix the heat issue. I am having the manifold ceramic coated and I am throwing away the ineffective heat shielding that was done by TMS for a much better arrangement incorporating a lower air scoop and bespoke chimney. If heat might be an issue for you you might like to investigate further. I am guessing that the NA heat will not be as big an issue but I thought it worth mentioning.

[MAXR]

My manifold is not 2bular but it is a TMS 4 into one pipe. It is married to a T28 and then to the 2bular 3" exhaust.

One point I would make is that the heat generated is absolutley mind blowing. The manifold glows a light orange even when on cruise. It is enough to melt at least one pipe every 200 miles or so. Problem is that the surface area and thinness of the manifold is an excellent heat absorber (not what you want in a car with very little air flow). I am having a number of mods done to fix the heat issue. I am having the manifold ceramic coated and I am throwing away the ineffective heat shielding that was done by TMS for a much better arrangement incorporating a lower air scoop and bespoke chimney.

If heat might be an issue for you you might like to investigate further. I am guessing that the NA heat will not be as big an issue but I thought it worth mentioning.

I saw you car at Courtenay's recently. I must confess the heat issue is not so much of a problem in the Na's as in the Tubbies, as the manifold on the turbo's are located tight against the driver compartment bulkhead where airflow is minimal. Whereas the NA's manifold is opposite against the luggage bulkhead where there's more airflow (still not great though). It will also be easier to increase the airflow in the NA's by fitting larger Turbo intakes, I assume you will have to fit either large air intakes to the underside or perhaps a roof intake or maybe both?

Then there's the Turbo charger itself produces which produces far far more heat than the supercharger (I bet yours glows orange too) ...and then let’s not forget your car is in another league in the power stakes compared to mine.

My car stays relatively cool in the engine compartment as I have removed the boot bulkhead & cut large holes in the exterior bodywork (a bit Heath Robinson!) I have also removed my rear wheel arch liners and the mesh grills from the engine lid. Courtenay's have fitted an oil cooler in my offside intake and my nearside intake houses the air filters from the induction system.

My only heat issues are from the rear silencer (melted the sensor wires twice, though sorted now) & the heat from the downpipe from the manifold which caused difficult gear selection (to be heat wrapped soon as well as the water pipe under the manifold). Finally heat from the old Miltek exhaust tips caused slight peeling to the bodywork due to miss-aligned exhaust). Water temps on track never gets above 80 degrees. My ECU now turns on my radiator fans a few degrees earlier which helps too.

Max