looking into next rx7 project

[skybusr34]

hi all, im on hunt for base rex formy next project, this time im thinking of doing large ish single.

im temped by the gt40 range. i want boost by 3k full by 4500. anyone on here with this turbo or its variants that can help with pointers.

forgot to add. what ever rex i buy, the block will be taken out and rebuilt with approproit porting work.

dont really want half bridge, just a good ol big port

[Hot_RX]

i have a uk fd which has started to lose coolant if your interested.

[skybusr34]

skybusr34   @yahoo.  co.uk   no gaps   send me over some pic please and info or post up on here    cheers

[Hot_RX]

email sent!

[AshRX]

GT40 range are great, know loads who are running these. Boost by 2k and full boost by 3600 on some of them. Scratchies, Big Lawrence on here run GT4094 and 88\'s and they get no lag at all

[skybusr34]

GT40 range are great, know loads who are running these. Boost by 2k and full boost by 3600 on some of them. Scratchies, Big Lawrence on here run GT4094 and 88\'s and they get no lag at all

do either of these rex have half bridge to get them spooling up early or just huge ports.

full boost by 3600 sound perfect, what top end power figures we looking at.

also whatds the difference between 94 and 88

[AshRX]

no they are running street ports. They are hitting 450+

is the rear compressor. 94 is bigger than 88. it will produce more power.

to put it into context, im running a GT4202 with 1.28 rear housing on half bridge. I get boost by 4.3k and full boost at 5.5k. They get on GT40\'s bosst as early as 1.8k - 2k and full boost over 3k and they are running non bridge. The bridge makes it spool quicker but half bridge is onlty really any good for large turbos like T88, T51 and GT42\'s

You dont need half bridge with GT40, a nice street port and it will fly