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MG MGF Technical - 52mm Throttle Body
I would like to change the throttle body of my 1.8i with the 160PS one (from 48mm to 52mm). Is there any substantial power increment with this operation?
I just have the K&N 57i installed. Is it reccomended with the new throttle body?
Many thanks in advance
|Me too alberto , i'm getting one fitted next week . If anyone has a answer i'd be interested too, i've just posted a similar msg on the general board.|
|Alberto, get in touch with Dell-Orto in Italy, they make the 52 mm TB's and if you have any success send us a doz or so;-) |
|check the 'Inlet Manifold ?' thread.|
|Roger Parker found that the 52 mm 'Trophy' TB provided the greatest gains in conjunction with the KN air filter, so this is a highly recommended combination.|
No one has yet tried to RR test a 1.8i with the 52mm TB - but with the VVC at least an additional 5 bhp was seen (52mm TB + K&N = 20 bhp? Would have to check the figures with Rog).
From the evidence of what people are claiming with the TBs on their standard cars, I'd guess they are seeing a similar increase on their 1.8is too.
|5 bhp extra from 5000rpm upwards, power and torque the same under 5000rpm. Measured on a VVC engine - see Cars and Car Conversions current issue in Walkers workshop.|
|160 TB with Hurricane airfilter and sportexhaust gave 163 Bhp at6650rpm, and 135 Lbft at 4180rpm.|
but the most amazing thing on DOT's Lotus with VVC engine is a flat torqueline ! more than 130 Lbft from 4000 till 6300 !
|That's pretty awesome Bob.|
Wonder what my setup would giveout
1) K&N 57i
3) Trophy TB
I want a good exhaust...
This thread was discussed between 14/05/2002 and 19/05/2002
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