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MG MGF Technical - 52mm Throttle Body - wow!
|OK, so I'm (97 F VVC) well behind when it comes to the 'darkside'of modifications, having done nothing more than EBC brake pads, a glass windstop, K & N filter and lowering knuckles. I added to this list a 52mm alloy throttle body last week, and wow, what a wonderful difference...a little more power, but the throttle response is miles better than before - the car feels really good, more responsive, more torquey. I thoroughly recommend the mod.....though I'm no doubt preaching to the converted here.|
|i can see your pleased ;-) 52mm TB the perfect compliment to your K & N had one fitted year ago but replaced my K&N with Tiapan enclosed monster filter but oh how i miss that K& N roar ;-) Dave|
|DC Morris T6 DCM|
You're going to make me spend more money! 52mm TB is on the list, however I've got to buy 2 new tyres this month so I might have to wait until next payday.
I'm glad you're pleased with your TB, can't wait until I get mine! :-)
How do you rate the Taipan v K&N in terms of performance / sound and is it worth spending the extra money on the Tiapan system ?
|Steve, i really haven't found a jot off difference and have the 52mm TB as well,the TB is greatvthat you don't get that slack pick up from start off point,that is good, i was expecting miracles perhaps but just could not tell much if any diff speaking honestly, it is impressive to look at under the bay and thats about it, i have though more than once about changing back to K&N57i kit as boy do i miss that roar,as Taipan is quiet which is also good thing if you can't take continuos roar of K&N music ha ha|
in my book a bit dissapointing performance wise for what it looks like and that is very impressive(Looks) Dave
|DC Morris T6 DCM|
Likewise your procedure I decided to put on the 52mm to my '96vvc.
Your 100% right: you should include this TD when converting to the K&N. It felt I was driving a new car.
Does the Taipan have different names as well. I do not know anyone with this unit on the continent.
|Emma go for Yokohama Advans, they are the best for MGFs and had originally been picked out for OEM but Toyota pulled a few strings to stop it happening. So the guys at Vehicle Handling Solutions Ltd¨|
|The Yoko Advan range is quite broad - ranging from road tyres to semi-slicks for road use. I think that the tyre that Al was refering to may not be a current Yoko tyre. However, the current generation of Advan's are fitted to Lotus Elise - so will be suitable for MGF too...|
Judging by the MR2 forums, the Advan Neova comes highly rated - and should, therefore, be considered for MGF/TF
The Lotus Elise uses the A048 - and these look awsome... would like to try these on my F! :o)
|I had Yoko Advans on my Elise and found them to about the best choice in the wet. That being said, I don't particularly make a point of going out in the wet so not really a massive purchase swayer there. They were reasonable in the dry - although I'm primarily a biker who's used to getting 1500 miles tops from a set of tyres, so I guess that's a bit of a wierd benchmark to work from.|
In the dry I favour the Toyo R888's over the Yoko A048, although that's on the road. Not had the chance to try them back to back on track to see how constant high levels of heat treat them, but since I've got a spare set of rims it might be something to pencil in for summer.
|Thanks Alex - I'd be interested in trying the Toyos on my F - but they don't have anything in a suitable size for 16" rims. |
How do the A048 and the R888 compare on cost/ wear/ performance so far, in your opinion?
|The 52mm body certainly sounds interesting and I am becoming tempted.|
Is it compatible with the 'standard' K&N filter and connecting tube? If so, can someone please explain in easy terms where the extra diameter becomes effective.
|>If so, can someone please explain in easy terms where the extra diameter becomes effective.|
during transient throttle,
When at throttle position A the pressure in the manifold is a, when at B the presure is b, but when moving from position A to B the change in pressure is not instantanious, a wider throttle plate means that the pressure change happens quicker.
The upshot is the engine will feel more responsive.
I make it a 17% extra capacity, so that should indeed help.
My problem is that if the up-stream components are the same:
1. Will the same K&N 57i filter & spacer tube fit?
2. If so, why isn't that then the constraining factor in the air flow?
|>> 1. Will the same K&N 57i filter & spacer tube fit? <<|
Yes, it will - the external dimensions are all identical.
>> 2. If so, why isn't that then the constraining factor in the air flow? <<
Because the tube diameters are all larger than is strictly necessary for a 1.8 litre engine, running with a red line of around 7000rpm producing a little less than 180bhp :o)
|Check here for the installation of a 52mm TB on an MGF. As you can see it's pretty much a straight swap out ;)|
|err... always a good idea to paste the link after you copy it :o|
|Thanks. A useful set of instructions.|
Doesn't look too hard. It even looks as though it may be possible to squeeze through the boot without removing the engine cover.
Has anyone actually needed to get a dealer to reset anythingthing beyond the possible stepper motor that you can do yourself?
|We thought about trying to fit the TB without removing the engine cover and I'm sure some people have done it that way, but in the end we decided to do use the traditional method :)|
The problem is that, without removing the engine cover, you're working blind on the lower 'back' bolt holding the TB to the plenum, and also the clip on the lower breather hose (which can be tricky to remove even when you can see it).
Really you only need to go to a dealer if for some reason you can't get the engine to idle in the usual range. There's an adjustment screw just next to the throttle cam for this purpose (once you've got the cable back in position and taken up the slack).
|>>The Yoko Advan range is quite broad - ranging from road tyres to semi-slicks for road use. I think that the tyre that Al was refering to may not be a current Yoko tyre.|
Alan was referring to the OEM tyre that was fitted to the MR2 and probably is only available via Toyota. He tells me that it is only available on 15" rims (185/55/15 Front and 205/50/15 Rear). He also said,
"They perform as well as the 16", but double check the load index on the tyre before making a commitment. Apparently the construction meant the load capacity of the tyre was reduced, just to be sure, double check. If you intend to try some or you know someone who does, I can try and get some more info."
If anyone wants to follow this up I can pass on Alan's email address. I run 16" rims and so I guess I'll stick with my Bridgestone SO2s.
|>There's an adjustment screw just next to the throttle cam |
Eeek no! This is set by the factory and should not be changed, even by Rover.
The reason why you _may_ have to visit Rover is to calibrate the TPS if it is far out of bounds, but someone (cant remember who) had sucess swapping the one from their old body to the new.
This thread was discussed between 28/10/2005 and 04/11/2005
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