hi mate
i have the a gt30 with a .63 internal wastegate and im well happy with it
it makes postive boost from 2k but doesn't start to kick in properly untill 3.3k
when i say postive that means 0.1+ 1.1+ 1.3 ect at 2k then rises
for road i love it too bits because i have the low down responce for normal driving
i think my engine compression is either 7:2:1 or 7:5:1 im not really sure as Steve Scott built it , all i said was copy the Harvy engine so i haven't got a clue im not sure if the head is ported or not
i know the Harvy head and inlet was ported i know this isn't the same head as the harvy head was fooked , so i dont know but anyway im well happy the way this gt30 pulls
My internal wastegate will not make as much power as an external wastegate GT30 version who cares about an extra 50bhp i dont.
All i wanted was a "plug and play" turbo that made a bit more power than the t34 without much lag and this was the best option for me
i couldn't be botherd with the screamer pipe and modding the exhaust housing to make fit the external version no only noise is a big issue on tracks no so it wasn't the best option
i haven't got a clue what version my GT30 so dont ask i told Martin to order me one so he knows what version i have
this turbo still will not come in any quicker than your turbo on .48 housing no way not even a t34 .63 will either
it does come on boost hard about 3.2k all i am saying it makes somekind of postive boost at 2.k because of the roller bearing
thats all i can say
i am still on the t34 chip injectors 3bar ect untill the car comes out of the ford shop then its going to karls to map/fit 1000cc injectors /5bar map/ eccv plelume with spacer /air to air with 12 postion boost controller
Im not chasing figures so i dont really cars what power it makes but if it makes a genuine 420+bhp it will be half a quick car !!!
marco