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RX-7 3rd Gen Specific (1993-2002) RX-7 1993-2002 Discussion including performance modifications and Technical Support Sections. |
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#1 |
Rotary Fanatic
Join Date: Feb 2008
Location: Madison Alabama
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sTOCK hp
Okay had the old girl Dyno=ed last night
The car is stock except for the 3 inch exhaust but it has a high flow cat, air pump with a stock air box, has 99 spec twins running in stock configuration 294 with 10 psi 314 with 12 psi Not bad on pump gas |
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#2 |
Outside the "box"......
Join Date: Feb 2008
Location: New Orleans
Posts: 123
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hmmmm 294@10psi seems kind of high with those mods.... But congrats none the less!
-J
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#3 |
Founder/Administrator/Internet Pitbull :)
Join Date: Jan 2008
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Doc, Great seeing you at the tuning session! And great numbers!
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#4 |
Rotary Fanatic
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and that was on a dynodynamics too!
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#5 |
Sua Sponte
Join Date: Feb 2008
Location: Killeen, TX
Posts: 839
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Nice numbers!!
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Road Atlanta August 2011 NASA TT 1:33 http://www.youtube.com/watch?v=IFY00PAK_Ps Traqmate's video of my car from the 2011 UTCC at VIR http://www.youtube.com/watch?v=2Zcn6...layer_embedded Video of Yellow LS1 FD at NASA TT at VIR http://www.youtube.com/watch?v=e6k0lJkcwrM |
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#6 |
Rotary Fanatic
Join Date: Feb 2008
Location: Madison Alabama
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I was pleasantly surprised at the numbers myself I was looking for a max of 320 and thought I may get it. I think the red fd behind me got the same at 12 psi.
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#7 |
Boost Addict
Join Date: Aug 2008
Location: Elgin IL
Posts: 13
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Seriously, all you have changed on this car is the exhaust?
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#8 |
RCC Contributor
Join Date: Jan 2008
Posts: 713
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I put down 292 at 8-9lbs on a dynojet about 5 years ago and everyone on the other forum called B.S. Car ran like 8.3-8.4 at around 84-85mph in the 1/8th on street tires which is pretty spot on for the hp :why:
Good numbers, these cars with just a full exhaust and 10lbs are a blast to drive.
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David Jerome Broker for Speed For Sale LLC (David@SpeedForSale.com) (Pre-owned RX7/sports car sales & new parts sales/installs/tuning) ![]() PM me about low priced, high quality port work ![]() |
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#9 |
Boost Addict
Join Date: Aug 2008
Location: Elgin IL
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RWHP? Only reason I ask is the FD (in US versions) came at 255hp at the flywheel stock, with a 10-8-10 boost pattern. I have a moderately Modded FD from 94 (PFC etc tuned by Steve Kan) and I am putting out 300rwhp on a dynodynamics tuned at 13PSI on the stocker twins. Check my introduction post, you will see my dyno sheet and mod list out
Not saying BS, just trying to understand the logic here |
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#10 |
Rotary Fanatic
Join Date: Feb 2008
Location: Smyrna, TN, USA
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I would get 15 B.S. posts if I put this on the other forum; the reason for the good numbers are the 99 turbo's and a good tune. The abraded seals make them 10-15% more efficient at the same boost level. I can only guess that at some point some respected person on the other forum posted that the seals didn’t do anything and everyone jumped on the bandwagon, but I can tell you from experience that they do make a difference. I put down 315 rwhp at 10 psi, but my engine also has 9.7:1 compression rotors.
Dan |
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#11 |
Boost Addict
Join Date: Aug 2008
Location: Elgin IL
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![]() That's interesting to hear. I knew the '99 spec turbos were better from a quality perspective, but never read or heard the seals made a difference. Shoot if that is the case, I will put '99 turbos on the list if/when my stockers go. Much cheaper than BNRs... (of course the BNRs will allow for more mods). |
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#12 | |
RCC Contributor
Join Date: Jan 2008
Posts: 713
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Quote:
![]() ![]() Throw a 3" exhaust on a fd and a pettit remapped ecu and at 12lbs you are pretty much guaranteed 315-325 rwhp on a dynojet. Throwing every bolt on at a stock twin car is pointless. Full exhaust, nice IC, and pettit remap ecu with a $80.00 walbro pump is an excellent setup for anyone wanting a reliable 300rwhp setup that will run high-mid 12s with a good driver. I dont really understand why so many people go PFC that stay at 12lbs or less. I am going to do some testing soon and see how a fd reacts with Strong Apex seals, pettit ecu, meth injection, stock injectors at around 14-15lbs. I imagine around 340 rwhp should be obtain and it "should" be reliable.
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David Jerome Broker for Speed For Sale LLC (David@SpeedForSale.com) (Pre-owned RX7/sports car sales & new parts sales/installs/tuning) ![]() PM me about low priced, high quality port work ![]() |
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#13 |
600rwhp club member.
Join Date: Mar 2008
Posts: 551
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[QUOTE=Doc-1;74639]Okay had the old girl Dyno=ed last night
The car is stock except for the 3 inch exhaust but it has a high flow cat, air pump with a stock air box, has 99 spec twins running in stock configuration Dont forget the Mazdaspeed IC and most important of all "Ray Wilson" tuned. I find these numbers close. I made 323 at 13-14psi (creep) on a old stock motor with basic bolt ons. And these numbers were on a dynodynamics unit but converted to dynojet numbers. |
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#14 |
Sua Sponte
Join Date: Feb 2008
Location: Killeen, TX
Posts: 839
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I agree with Dan and David. I'm more than likely going to have a set of my 99's converted to BNR stage III's and see how they work out for me.
The FD is great in responding to modifications. As you all know, the intakes and exhausts were extremely restrictive from the factory in order to get the FD to pass emissions tests to get into the states. I remember first riding in my FD when it was bone stock and being very impressed with the performance. Another huge plus, as David hit on, you can really feel/get improvements from opening up the exhaust(and intake). I remember modifying other cars prior to owning my FD and I'd drive it and think "maybe it's a little faster?" The first mod's I did to my red FD back in 2002 was Pettit Intake, HKS dp, mp, HKS exhaust, PFC, and a walbro. Holy shit!! could I tell a difference!!!! The clutch started slipping a week later. I ran a 7.9 in the 1/8th with that set up a few times which was good for back then in my local area. Of course, this is partially the reason for the bad reputation the FD has with reliability. People would open up the intakes and exhausts and not add any addtional fuel, and because the OBD I doesn't adjust the fuel map, it would run lean... and you all know the rest of the story.
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Road Atlanta August 2011 NASA TT 1:33 http://www.youtube.com/watch?v=IFY00PAK_Ps Traqmate's video of my car from the 2011 UTCC at VIR http://www.youtube.com/watch?v=2Zcn6...layer_embedded Video of Yellow LS1 FD at NASA TT at VIR http://www.youtube.com/watch?v=e6k0lJkcwrM |
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#15 | |
Boost Addict
Join Date: Aug 2008
Location: Elgin IL
Posts: 13
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Quote:
I have a great intake (M2, with an M2 medium intercooler) and a wide open 3" exhaust (racing beat, with a High Flow CAT), a Cosmo Fuel pump with 1200cc secondaries and I am only getting 300rwhp? I am just wondering what gives. Now don't get me wrong, this car is a BLAST to drive, but as we all know HP in this car is addictive (I want more!) |
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