400+ HP GT4088R Bridgeported Turbo-NA RX-7 Afternoon Drive

Just a silly little video I made with my RX-7 as an excuse to not cut the lawn. I just installed a new transmission and am trying to get used to the new kevlar clutch, which makes launching a little difficult. There are a few 1st and 2nd gear pulls in the video on low boost. The roads shown were deserted for miles and I didn't exceed the speed limit. The car makes just over 400 RWHP at low boost (13 PSI) and somewhere around 500 RWHP at high boost (16 PSI). The engine is a S4 NA 6 port block with a small bridgeport. The turbo system is fully custom using a GT4088R, my own long runner stainless manifold, 3.75" downpipe, 3 x 24" intercooler with custom tanks, my own custom upper intake, Microtech LT8s, 720CC/1600CC injectors, and probably some other stuff I'm forgetting. There is still a little tuning to do at low boost so I guess I'll need to book some more dyno time soon.

Category:

Autos & Vehicles

Tags:

• rx-7
• bridgeport
• turbo
• gt4088r
• launch
• rotary
• wankel
• mazda

[55bobito]

Why doesn't it sound like a typical bridgrport

[aaroncake]

@55bobito Sounds exactly like a typical bridgeport. It's just that I've put great care into building the exhaust so that it's subdued and pleasing instead of the normal insanely loud.

[ssonosk]

lets get some in car footy!

[aaroncake]

@ssonosk I'll see what I can do next summer with a sequel to this video.

[Bamchucknorris]

if it aint a rotor in aint a motor

[aaroncake]

@messer0744 Read the description. New kevlar clutch, trying to get used to launching as it doesn't slip so much as grip suddenly. I was trying to find an RPM that was a compromise between a tire fire and getting something of a grip. Oh, it's also hard to try to launch a 400+ HP 2600 LBs car on 215s

[MakeYourself1987]

Where that is looks so awesome.

[aaroncake]

@codeblak4 I'm a computer tech by day, and do rotary stuff evenings and weekends. You should check out my other videos because I'm documenting the restoration of my '76 Mazda Cosmo. I really don't mess with piston engines at all.

[codeblak4]

@aaroncake you know alot in this field, are you a rotary mechanic? and do you kno all about piston engines to?

[aaroncake]

@codeblak4 A port job will typically add $400-$600 to the cost of a rebuild. Don't forget to include the standalone and fuel system to that mods list. The specifics depend on the turbo you plan to use.

[codeblak4]

@aaroncake wow 8-10 thats like a hummer damn i was gonna do that but forget it now, how much any port job cost anyways? and i do plan on upgradeing the 3-4 inch exhaust,intake,turbo,intercool­er,wastgate,all pipeing etc anyways ,thats why i wanted to bridgeport it to get maximum power out of it all