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-   -   Going to the dyno today, any guesses? (https://www.rx7club.com/1st-generation-specific-1979-1985-18/going-dyno-today-any-guesses-159830/)

pillage6 02-20-03 01:50 PM

Going to the dyno today, any guesses?
 
I am going to Stage 6 here in town today to get my car dyno'ed.

I am hoping for high 200's at the wheels, but we shall see.

I will post pics of the dyno and the slip tomorrow.

HeffBoost 02-20-03 04:20 PM

Stock ports? What kind of exhaust? How much boost?

xxxHondaGuyxxx 02-20-03 04:26 PM

I guess 101hp.

RotorMotorDriver 02-20-03 06:11 PM

Im with ya on at least 200. Its a Cartech turbo kit right? Arent those rated at almost 300?

~T.J.

Winnipeg85GSL 02-20-03 08:09 PM

A T76 on possibly a 12A??!??!? Good Lord!

AdrenalifeRX7 02-21-03 12:55 AM

i'd bet you're over 300....I have a Cartech kit on my 13B and Corky Bell himself rated my setup at over 350HP.

PaulFitzwarryne 02-21-03 01:28 AM

I would say not more than 200 rwhp, its measurement that matters not rating. What is in the Cartech kit?

GSL-SE Owner 02-21-03 01:57 AM

just for fun i'll guess...i say 284 hp and 208 torque

xxxHondaGuyxxx 02-21-03 03:18 AM

Did you forget to go to the dyno?

where's the numbers?

pillage6 02-21-03 08:58 AM

Okay boys and girls, can you say "My car is slow"?

186@7000rpms 8lbs.

Don't laugh too hard, you might burst a vein.

I was very surprised and very embarassed.

I was lean (13) at low rpms and okay (11) at high rpms.

I am thinking about turning up the boost to about 12-14lbs, rejetting the carb, changing the plugs and trying it again next week.

I was in such shock, I left without paying. I will be going back today to make payment for making an ass of myself.

error402 02-21-03 09:15 AM

What type of porting job do you have?

-Error

MosesX605 02-21-03 09:18 AM

186 hp is nothing to sneeze at in a 2500 pound car. You car is probably quite fast indeed.

pillage6 02-21-03 09:18 AM

None.

lotsacars 02-21-03 10:25 AM

Coming from someone who admittedly knows relatively little about turbocharging, your dyno #'s aren't far off from what I expected. On a stock port I'm not surprised with those #'s at all. That said, 186rwhp is probably ~twice what your car had pre-turbo at the wheels. I don't think you did bad at all, certainly nothing to be embarassed over. Cheer up :)

pillage6 02-21-03 10:33 AM

Thanks for the post man, I was just hoping for better numbers.

If anything, I am determined to get into the high 200's and I am going to work on it starting today.

pillage6 02-21-03 10:37 AM

I know the turbo has tremendous potential, but I just installed the air/ fuel meter the night before and really have not tuned the carb perfectly.

The guy down there (Tracy), gave me some advice on jetting, so I will follow that and crank the boost, probably to 14 lbs.

Does anyone know what the max boost on a T76 is?

Maguire 02-21-03 12:17 PM

i wish my car made 186 to the wheels. That's pretty damn good for stock porting and a blow-through system. (Not that i really know much about the stuff) but after tunning properly i wouldnt be suprised if you hit the 200 mark. Not bad for a "bolt-on" job.

AdrenalifeRX7 02-21-03 12:58 PM

If you get that thing street ported and tuned right those HP figures will be close to double your previous amount...believe me I know. Good luck man, don't be so hard on yourself.

pillage6 02-21-03 01:17 PM

I just installed an MBC, how does this thing work?

Is all the way in full boost or all the way out?

error402 02-21-03 02:25 PM

I think putting more stress on your motor by turning up the boost will hurt in more in the long run with those stock exhaust ports. I don't want to see another first gen on the side of the road. If you want to see a great increase in power with your current setup...get it ported. Even a mild street port will be better then forcing those small exhaust ports to do more work.

-Error

pillage6 02-21-03 02:37 PM

The guy I bought the car from said that the motor is ported, and it lops on startup, but I looked at the intake ports and they looked stock.

I am guessing that this guy would have at least the exhaust ports ported running a turbo.

error402 02-21-03 03:13 PM

Phew *wipes sweat off of forehead* I feel much better. :)

I really don't worry much about the intake ports as much as I do the exhaust ports.

I'm wondering are you getting an turbo lag and how is your clutch doing? (I didn't read through all the replies so I apologize for coming into this discussion a little late.)

-Error

pillage6 02-21-03 05:14 PM

There is some lag, but this is my first turbo car, so I have nothing to compare it to.

Dual friction clutch is holding up well, it was basically new when I bought the car.

Traction is a problem though, keep spinning the tires.

RotorMotorDriver 02-21-03 07:07 PM

Shit, I would be happy if I could hit that number with my Weber blow through Im planning at 8 PSI.

~T.J.

PaulFitzwarryne 02-22-03 05:46 AM

186rwhp at 8lbs boost is reasonable with a stockport. Pushing up the boost further without dowelling may not be a good idea. You will also be getting to the stage where driveshaft, diff and clutch modifications should be considered. Without a good intercooler I suggest 9-10 ib should be your max boost with another 2 with a frontmounted IC. In an early response I suggested 200 hp max for your set-up, with a little fine tuning this should be possible.

OK porting will give you more power, but a strip down and port job is an expensive option at this stage


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