Standard upper intake manifold on all Windsors since and including the EL2XR8 has been the "Explorer" type manifold. The ELGT is the only exception, as it received the GT40.AUII XR8 said:Does anyone have any figures for difference in power/drive nature swapping original (cobra?) manifold to the tubular GT40 upper? Is it worth the money? Any power gain figures? Engine would be 220kw - standard 70mm TB, headwork etc.
Wow, that is a whole lot of stuff for a measly 20kw gain. So basically you would be looking at about $5000 for a 10% gain.Aussie Pete said:Upper intake manifolds are not the main area for improvement. It is the lower that makes significant difference, especially the front two cylinders. In my extensive research (there is a previous thread in here somewhere on intakes) the Edelbrock was extremely good, however I ended up going for the TrickFlow Track Heat setup www.trickflow.com which gives very good flow figures and even numbers between the different cylinders.
To see these intakes, look for a thread 'Santa Brings Presents for Aussie Pete's Car' or something like that in the Pub.
As for the differences between the 200 and 220 engines, there is more to it. Of ourse there's the heads with porting and bigger valves plus decking to increase compression, camshaft, throttle body, match porting the lower intake, bigger cats, and of course EEC5 calibration.
There's plusses and minuses to both. XR8 gets tray liner, separate tray, space in the cab, six stack CD, better trim and finish overall amongs other things.TheBow said:Wow, that is a whole lot of stuff for a measly 20kw gain. So basically you would be looking at about $5000 for a 10% gain.
Dare I say it but maybe I should have ut the extra 3K down up front and bought the SS ute instead.
How much would it actually cost to take a 5.0 ford V8 to 250kw and beyond? I'd really like to hit that figure but it seems that supercharging appears to the most cost effective option or something weird like a 351 efi swapout.
Now I say this while having no idea about the finer points of engine mods etc.
Fair enough..I remeber a MOTOR review of the Herrod XR8 vs the Maloo and it didn't come off too well.Aussie Pete said:
There's plusses and minuses to both. XR8 gets tray liner, separate tray, space in the cab, six stack CD, better trim and finish overall amongs other things.
To get 250kW I think Herrod charge in the region of 7k. For that, I would go for the stroker any day of the week at around 7k with girdle, however I think it is realistically only around 240kW. However, the torque is where the stroker is at!
The ute herrods had in this test had problems with the unichip as the rev limit was too low for the new cam. once fixed it apparently went way better.TheBow said:Fair enough..I remeber a MOTOR review of the Herrod XR8 vs the Maloo and it didn't come off too well.
Time for a Herrod 250kw package mate.TheBow said:Oh ok..fair enough then.
I can't remember if they mentioned it in the article, they really should drive the Herrod car agin then and report on that as a postscript.
I think the Herrod ute looked way better than the maloo but I am probably biased. The Maloo is too fussy with all the wings and stuff although I must admit the 250kW pursuit looks pretty horny.
Ok I am definately biased - The SS ute is my mortal enemy, pity I only have 200kw :-(
While your at it get a 351w and stroke that. It's actually cheaper than stroking a 302.EF_Falcon_GuY said:On the subject pf GT40 upper intkae manifolds, not talking about power or anything but i reckon they look awesome. If i get a windsor 302, i'll definitly get em fitted. I think it's like $800 for it.