Single Turbo RX-7's Questions about all aspects of single turbo setups.

Going from GTX4294R to GT3794R OR ...?

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Old 06-27-12 | 11:54 AM
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NY Going from GTX4294R to GT3794R OR ...?

i want to upgrade, or downgrade rather, my GTX4294R with the tial housing. want to modify my manifold the least and have a tial housing given the ease of installation and the little space they take.

my freaking gtx wont wake up until it sees 28+ psi. it has the potential to make great power but at the boost levels i want it, i m not doing much

purpose, RESPONSE with boost levels up to 23-24lb MAX and make decent power

i came across the FP gt3794R HTA which can use the 35R housing.

I was wondering if anyone used it. If there are any dynocharts available or any more information. I dont want to be the test mule and to be the one to say, yeah that was also a bad turbo selection
Old 06-29-12 | 01:12 AM
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from my testing i have noticed ALL billet style turbos really dont wake up until past 20psi. i made 375whp at 18psi on my billet 6765 and made 407whp on my 35r at 16psi with similar exhaust etc.

as for the hta turbos i was looking into trying one out as well. the only downfall is that they are geared around evo 4 cyl motors so the turbine to compressor wheels are a good amount gapped in size.

if boost response is not a big issue i would go with a gt4094r. that will make good power in the low 20's for boost.
Old 06-29-12 | 03:58 AM
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response is an issue unfortunately due to the new race track. (all closed turns)

i want to keep the tial houing configuration so gt4094 is really not an ideal option


hence the decision for the gt3794HTA
Old 07-01-12 | 04:45 AM
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no one used the 3794? will i have to be the test mule ?
Old 07-04-12 | 10:08 AM
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Swap you my gt4094r!
Old 07-04-12 | 03:40 PM
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Originally Posted by R-R-Rx7
my freaking gtx wont wake up until it sees 28+ psi. it has the potential to make great power but at the boost levels i want it, i m not doing much

purpose, RESPONSE with boost levels up to 23-24lb MAX and make decent power
Keep your turbo. Pull the motor and do a semi pport. You'll be plenty happy you did. Hope your well my friend.
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