[LTWon]

Which pulley did you use to run your original 10.81 pass before this track outing?

[toohighpsi]

Originally Posted by LTWon

Which pulley did you use to run your original 10.81 pass before this track outing?

90mm pulley was used to run the 10.81 with a DA of about 1800. It is about the smallest you can run safely with the stock HPDI fuel pump and good fuel. The car made 610 RWHP with this configuration.

We are now running the Magnuson HPDI pump which has approximately 30% more flow than the stock pump. With this pump I have used an 85mm pulley and have made 630 RWHP but due to the DA at the track I haven't run any faster yet.

Heading back to the track on the first week of December with a couple more mods and looking for a bit cooler weather for some faster times .

[Gmanuel]

Originally Posted by toohighpsi

90mm pulley was used to run the 10.81 with a DA of about 1800. It is about the smallest you can run safely with the stock HPDI fuel pump and good fuel. The car made 610 RWHP with this configuration.

We are now running the Magnuson HPDI pump which has approximately 30% more flow than the stock pump. With this pump I have used an 85mm pulley and have made 630 RWHP but due to the DA at the track I haven't run any faster yet.

Heading back to the track on the first week of December with a couple more mods and looking for a bit cooler weather for some faster times .

Roto fab intake being one of the new mods, I'm assuming? Looking forward to seeing more times!

[toohighpsi]

Well for a start, a few parts from Hooker (headers) and Carlyle Racing (15" rear wheel conversion). Just arrived today

[Atomic Ed]

Excellent! I want to see what the Hooker shorties will do on a PD. If you would, let us know what the collector ID is.

[toohighpsi]

The header collector measures right at 2", but I'm not sure what the mating flange for the Catalyst pipe is yet, won't know that until I pull the stock headers. These will be matched to the catalyst pipe size when they go on.