First Dyno Runs With My Turbo-NA Bridgeport RX-7

The first few dyno runs after some tuning on my RX-7. We did about 15 total runs that day, getting the A/F ratios decent under boost. Currently running about 11.5:1 under 13 PSI of boost from the GT4088R. The car has a 6 port high compression NA block, streetported primary and secondary ports with bridged aux ports. Large exhaust ports, custom upper intake, 720CC primary, 1600CC secondary and a Microtech LT8s. At 13 PSI, the car made 387 HP and 297 Ft-Lbs. Can't wait for 17+ PSI!

Category:

Autos & Vehicles

Tags:

• project
• tina
• turbo
• NA
• bridgeport
• GT4088r
• dyno
• rotary
• wankel
• rx-7

[BalkanBoyUSA]

that's a job DAMN well done

now that you have that car and the numbers to show for get used to cyber haters

[aaroncake]

@BalkanBoyUSA This video is actually quite old and the tune shown was mainly a crude WOT tune. I did a bit more tuning a few weeks later and found about 20 more HP top end with a vastly improved midrange. Then later on I turned the boost to 16 PSI and put down over 500 RWHP. Most of those "haters" are driving NAs that struggle to make 130 RWHP.

[badpoultryfuel]

@aaroncake Are u running NA rotors too or are they turbo rotors? megasquirt? I know u aussies can get higher octane than us in the USA. u rock aaroncake!

[aaroncake]

@badpoultryfuel Yes, S4 NA rotors, and a Microtech LT8s. I run 91 octane.

[badpoultryfuel]

@aaroncake So you didn't have any problem running 16psi and 500 hp on 91 octane? That is an awesome car, and i love your megasquirt write up, thanks for putting that together, it was really helpful for me. Now i need to save up some money for some more toys :) I want to do a mid engined rotary next i've been thinking.

[aaroncake]

@badpoultryfuel No issues even with the high compression rotors but this, as they say, isn't my first rodeo. I wouldn't recommend everyone take this approach because it is 100% custom. Though there won't be any reason not to make 400 RWHP reliably on 91 octane (10 degrees of timing at full boost, 15 degrees split, 11:1 AFRs) on 91 octane using a 13B-T/REW. I've built many such setups that all run fine. Tuning is always the key.

[waxball88]

How much did it cost you to go from na to turbo? Im looking to do this

[funkjaw]

Aaroncake for president.

[aaroncake]

@rayvdub The exhaust manifold was spaced out 2.5" to clear the stock NA lower intake. If you reread the writeup on my website, it covers all of this fully. Note that the turbo setup in this video is totally different than that shown in my original turbo-NA writeup where the spacer was used.

[rayvdub]

@aaroncake on you're write yup about spacing the intake manifold about 2.5 inches were you talking about the stock N/A or did you use the tii intake?

Would the N/A manifold work with the boost?, I found a kit that claims too clear the intake manifold but I'm not so sure

[aaroncake]

@XxX1rW1nXxX Microtech LT8s.