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Highly unlikely to exceed capacity of the MAP sensor with either Edelbrock or Cosworth, as that will read about 22psi or 29psi respectively. Edelbrock's smallest pulley produces about 20psi. The Harrop kit as standard utilizes the stock MAP and MAF. If running one of our tunes, it will most definitely need an upgraded map sensor for proper operation.
We've tuned Harrop, Cosworth, and Edelbrock setups at this stage. The Edelbrock kit in standard form seems to produce a good bit more boost than both Cosworth and Harrop, and as such will make a bit more power in standard trim.
While the Harrop and Cosworth kits have the same theoretical potential as the Edelbrock, one feature it is lacking is accurate charge air temperature reading. Cosworth and Edelbrock have the advantage here, as they use the Bosch TMAP's temperature signal for compensation.
Of the Harrop cars I've seen so far, I like them! Can't wait to play with some more.
Sincerely,
Zach
Delicious Tuning
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