Dyno Numbers

JRowlette · 04-14-2002, 01:42 AM

Today at Total Engine Airflow they had a little dyno day. They let you do 3 pulls for $30. I was hesitant to pull my car due to the stock injectors, MAF, and no real tuning, but I am glad I did.

HP = 286.7 @ 5000
Torque = 313.8

I am very happy considering the HP curve flattened out at about 4900 rpm. I was only expecting about 260-270. If I had a scanner I would post the graph. The torque hit 300ft-lb at 3500rpm and didn't drop below 300 until about 4850rpm. I am gonna dyno it again as soon as get the new injectors and MAF.
What is the conversion for RWHP to flywheel HP?
Any opinions welcome.

Grn92LX · 04-14-2002, 01:52 AM

Thats the exact set up I have. Do you have at least a bigger fuel pump and adj fpr? How was your timing set? You should be around 300+rwhp with tuning and the new maf. How did the a/f ratio look? The fact that u made pk power @ 5000 says that there is more in the combo. A girl on corral.net with the same set up as us only she has an edelbrock performer intake made 300rwhp and 343rwtq!

Quick funny story, when I had my car dynoed my #'s were not what I expected. I made 275rwhp @ 5100rpm and 316 ft/lbs @ 4300rpm. I was pissed! Well, it just so happens that my fuel filter was on backwards. I put a new one on and gained 4mph at the track with no real other changes. I went from running a best of 101-102 to running 105. Car is still not fully tuned as that run was a conservative 14* initial timing.

Nice to see someone with the exact to the T combo as me.

Mike

Unit 5302 · 04-14-2002, 04:26 AM

Well #1 I'd have to say those are good, solid numbers for no tuning. #2, You'd be hard pressed to see much more than a true 300rwhp with your combo. That would equate to about 360hp at the crank. That's more like what I'd expect to see on a Holley intake combo.

Having everything tuned right can result in some pretty impressive running engines, but if I were you, I'd be more than happy with 300rwhp when all it tuned and taken care of. The TFS TW cars seem to produce the max power around 5000rpms from the few dyno runs I've seen/heard about.

JRowlette · 04-14-2002, 10:42 AM

I know the car has a bigger than stock fuel pump, but I am not sure exactly what size. I have a Kirban AFPR, but I did not adjust it while on the dyno. TEA was having problems with their A/F meter, so I couldn't get a A/F ratio curve. I had the timing set at about 16*, but I think I am going to try it aound 18 or 19 the next time. I am thinking it should make peak power around 5400-5500rpm.
Hopefully I will see 310rwhp with new injectors, MAF, TB/EGR,and a decent tune. This summer I am probably going to buy an EEC Tuner from a friend of mine, so that should take care of any tuning problems.

Grn92LX · 04-14-2002, 02:31 PM

I think over 300rwhp could happen with dyno tuning and getting everything tuned perfect to how the car likes it. Yes, definatly try 18* timing. I'd go with a 65 or 70mm accufab TB, 24# injectors and hit the dyno and tune. I'd recommend the c&l 76mm maf also. Just wondering, are you running a spacer? When do you plan on hitting the dyno again?

I disagree with Unit 5302's response, these combo's do not make pk power @ 5000 rpm. I made pk power @ 5100 with a backwards fuel filter totally killing fuel up top. 5400-5600 is where it should peak. I guy on corral.net and I think he posts here, made 290rwhp @ 5800 untuned with a track heat intake and the same combo as us. He'll definatly hit over 300 with tuning.

JRowlette · 04-14-2002, 03:49 PM

I'll probably go with a 70mm TB/EGR, but I still can't decide which MAF, the C&L 76 or the Pro-M 75mm bullet. I like the intake tube on the C&L, but I like the new electronics on the Pro-M. I already have 24# injectors sitting in my apartment. I am in college and have a part-time job, so it might be a couple of weeks until I can get the MAF.
If you are referring to an intake spacer, I originally bought a 3/8", but the valve covers cleared so I sent it back to Summit.
I also disagree with Unit. On the seat-of-the-pants dyno, it still pulls hard past 5k, where it didn't with the old heads. The fact that I had the stock MAF and injectors is probably why it dropped off past 5k. Surely I can pick up 14 hp with what's listed above.
I think I am going to wait until I get everything on (MAF, 24#'s, and TB) until I dyno it again.
Do you have 24#'ers, and if so what is your FP set at?
Thanks for the input, as you said earlier, it's nice to be able to trade tips with people with the same combo. God Bless the internet and God help people driving imports!

Grn92LX · 04-14-2002, 08:12 PM

I do have 24# injectors. They are flow matched bosch injectors. I was tuning fp at the track when I was only running 14* timing and I made my best mph on my last run. I was running 37psi fp. I dont knw if thats the best setting because I am now running 18* timing. I'll wait till I hit the track and start playing with the tune next time. Most guys with this combo say 18* timing is best, but fp seems to vary. I think with injectors, maf and tuning you could see 20-25 more hp. But I dont wanna get your hopes up, but I see over 300 as something thats realistic.

I'd go with the c&l over the 75mm pro m.

Reason I asked if u were runing an intake spacer was because I was thinking about removing mine. I wonder if that extra 3/8" of runner length is hurting the car? What kind of fpr do you have? I have an accufab and I may have to dent the egr valve to clear it. Lots of guys do this instead of buying a spacer.

Too bad the a/f meter wasnt working at the dyno place, I wonder if your going a little lean up top?? Was the graphs clean of jittery up top?

Quote:

I think I am going to wait until I get everything on (MAF, 24#'s, and TB) until I dyno it again.

This is best, this way you can tune the car with all the new parts.

JRowlette · 04-15-2002, 12:11 AM

Yeah, I think 300 rwhp is obtainable with a decent tune. I think I will go with the C&L 76. I found a place today, motorsportsdepot.com, that sells it for $190 shipped. I have a Kirban AFPR and it barely touches the EGR valve, but not enough to really hurt anything.
The graph did have some flutter in it at about 5100 rpm, so I am sure it was leaning out a little bit, but I still didn't hear any detonation.
I am going to try to scan and post the graph tomorrow in between classes.

302 LX Eric · 04-15-2002, 08:39 AM

FWIW I made the following power with TFS TW's and a small cam (.480/.480 220,226):

Max RWHP: 290@5300RPM

Max RWTQ: 312@4500RPM

I was actually surprised at how power was dropping off pretty hard after 5500-5600 rpm. I was always told to keep the shifts higher (~5900, etc.) but a little lower on the shift points seems to be where my car performs best in the 1/4.

E

JRowlette · 04-15-2002, 04:37 PM

Here's the graph

JRowlette · 04-15-2002, 07:25 PM

OK, one more time.

04-14-2002, 10:42 AM	#4
JRowlette Registered Member Join Date: Apr 2001 Location: Bowling Green, KY Posts: 95	I know the car has a bigger than stock fuel pump, but I am not sure exactly what size. I have a Kirban AFPR, but I did not adjust it while on the dyno. TEA was having problems with their A/F meter, so I couldn't get a A/F ratio curve. I had the timing set at about 16*, but I think I am going to try it aound 18 or 19 the next time. I am thinking it should make peak power around 5400-5500rpm. Hopefully I will see 310rwhp with new injectors, MAF, TB/EGR,and a decent tune. This summer I am probably going to buy an EEC Tuner from a friend of mine, so that should take care of any tuning problems. __________________ '90 Black Notch: TFS TW heads, Stage 1 Cam, Street Intake, FMS 1.6 rockers, Kirban AFPR, 24# injectors, C&L 76mm MAF, 70mm Accufab TB/EGR, Tremec 3550, SPEC Stage 2 & Billet Flywheel, Alum DS, 4.10's w/ 31 Spline Eaton, Full MAC exhaust, etc. 286.7 RWHP @ 5100rpm, 313.7 TQ w/stock MAF, Inj, TB, and no tune Race weight : 3090 # w/ driver New Best - 12.82@107.9 w/1.74 60'

04-14-2002, 02:31 PM	#5
Grn92LX Registered Member Join Date: Mar 2002 Location: Long Island, NY Posts: 55	I think over 300rwhp could happen with dyno tuning and getting everything tuned perfect to how the car likes it. Yes, definatly try 18* timing. I'd go with a 65 or 70mm accufab TB, 24# injectors and hit the dyno and tune. I'd recommend the c&l 76mm maf also. Just wondering, are you running a spacer? When do you plan on hitting the dyno again? I disagree with Unit 5302's response, these combo's do not make pk power @ 5000 rpm. I made pk power @ 5100 with a backwards fuel filter totally killing fuel up top. 5400-5600 is where it should peak. I guy on corral.net and I think he posts here, made 290rwhp @ 5800 untuned with a track heat intake and the same combo as us. He'll definatly hit over 300 with tuning. __________________ TFS heads/FTI custom cam/TFS street heat, Longtubes, 373's, MM lca's, Tokico springs/shocks

04-14-2002, 03:49 PM	#6
JRowlette Registered Member Join Date: Apr 2001 Location: Bowling Green, KY Posts: 95	I'll probably go with a 70mm TB/EGR, but I still can't decide which MAF, the C&L 76 or the Pro-M 75mm bullet. I like the intake tube on the C&L, but I like the new electronics on the Pro-M. I already have 24# injectors sitting in my apartment. I am in college and have a part-time job, so it might be a couple of weeks until I can get the MAF. If you are referring to an intake spacer, I originally bought a 3/8", but the valve covers cleared so I sent it back to Summit. I also disagree with Unit. On the seat-of-the-pants dyno, it still pulls hard past 5k, where it didn't with the old heads. The fact that I had the stock MAF and injectors is probably why it dropped off past 5k. Surely I can pick up 14 hp with what's listed above. I think I am going to wait until I get everything on (MAF, 24#'s, and TB) until I dyno it again. Do you have 24#'ers, and if so what is your FP set at? Thanks for the input, as you said earlier, it's nice to be able to trade tips with people with the same combo. God Bless the internet and God help people driving imports! __________________ '90 Black Notch: TFS TW heads, Stage 1 Cam, Street Intake, FMS 1.6 rockers, Kirban AFPR, 24# injectors, C&L 76mm MAF, 70mm Accufab TB/EGR, Tremec 3550, SPEC Stage 2 & Billet Flywheel, Alum DS, 4.10's w/ 31 Spline Eaton, Full MAC exhaust, etc. 286.7 RWHP @ 5100rpm, 313.7 TQ w/stock MAF, Inj, TB, and no tune Race weight : 3090 # w/ driver New Best - 12.82@107.9 w/1.74 60'

04-15-2002, 12:11 AM	#8
JRowlette Registered Member Join Date: Apr 2001 Location: Bowling Green, KY Posts: 95	Yeah, I think 300 rwhp is obtainable with a decent tune. I think I will go with the C&L 76. I found a place today, motorsportsdepot.com, that sells it for $190 shipped. I have a Kirban AFPR and it barely touches the EGR valve, but not enough to really hurt anything. The graph did have some flutter in it at about 5100 rpm, so I am sure it was leaning out a little bit, but I still didn't hear any detonation. I am going to try to scan and post the graph tomorrow in between classes. __________________ '90 Black Notch: TFS TW heads, Stage 1 Cam, Street Intake, FMS 1.6 rockers, Kirban AFPR, 24# injectors, C&L 76mm MAF, 70mm Accufab TB/EGR, Tremec 3550, SPEC Stage 2 & Billet Flywheel, Alum DS, 4.10's w/ 31 Spline Eaton, Full MAC exhaust, etc. 286.7 RWHP @ 5100rpm, 313.7 TQ w/stock MAF, Inj, TB, and no tune Race weight : 3090 # w/ driver New Best - 12.82@107.9 w/1.74 60'

04-15-2002, 08:39 AM	#9
302 LX Eric or '331 LX Eric' Join Date: Jan 1999 Location: Columbus, Ohio Posts: 2,142	FWIW I made the following power with TFS TW's and a small cam (.480/.480 220,226): Max RWHP: 290@5300RPM Max RWTQ: 312@4500RPM I was actually surprised at how power was dropping off pretty hard after 5500-5600 rpm. I was always told to keep the shifts higher (~5900, etc.) but a little lower on the shift points seems to be where my car performs best in the 1/4. E __________________ 1991 5.0 LX Coupe - 40,750 miles 331 cu. in. / Tremec 3550 / BFG Drag Radials 12.22 @ 114.31 mph - w/1.89 60'

04-14-2002, 01:42 AM	#1
JRowlette Registered Member Join Date: Apr 2001 Location: Bowling Green, KY Posts: 95	Dyno Numbers Today at Total Engine Airflow they had a little dyno day. They let you do 3 pulls for $30. I was hesitant to pull my car due to the stock injectors, MAF, and no real tuning, but I am glad I did. HP = 286.7 @ 5000 Torque = 313.8 I am very happy considering the HP curve flattened out at about 4900 rpm. I was only expecting about 260-270. If I had a scanner I would post the graph. The torque hit 300ft-lb at 3500rpm and didn't drop below 300 until about 4850rpm. I am gonna dyno it again as soon as get the new injectors and MAF. What is the conversion for RWHP to flywheel HP? Any opinions welcome. __________________ '90 Black Notch: TFS TW heads, Stage 1 Cam, Street Intake, FMS 1.6 rockers, Kirban AFPR, 24# injectors, C&L 76mm MAF, 70mm Accufab TB/EGR, Tremec 3550, SPEC Stage 2 & Billet Flywheel, Alum DS, 4.10's w/ 31 Spline Eaton, Full MAC exhaust, etc. 286.7 RWHP @ 5100rpm, 313.7 TQ w/stock MAF, Inj, TB, and no tune Race weight : 3090 # w/ driver New Best - 12.82@107.9 w/1.74 60'

04-14-2002, 01:52 AM	#2
Grn92LX Registered Member Join Date: Mar 2002 Location: Long Island, NY Posts: 55	Thats the exact set up I have. Do you have at least a bigger fuel pump and adj fpr? How was your timing set? You should be around 300+rwhp with tuning and the new maf. How did the a/f ratio look? The fact that u made pk power @ 5000 says that there is more in the combo. A girl on corral.net with the same set up as us only she has an edelbrock performer intake made 300rwhp and 343rwtq! Quick funny story, when I had my car dynoed my #'s were not what I expected. I made 275rwhp @ 5100rpm and 316 ft/lbs @ 4300rpm. I was pissed! Well, it just so happens that my fuel filter was on backwards. I put a new one on and gained 4mph at the track with no real other changes. I went from running a best of 101-102 to running 105. Car is still not fully tuned as that run was a conservative 14* initial timing. Nice to see someone with the exact to the T combo as me. Mike __________________ TFS heads/FTI custom cam/TFS street heat, Longtubes, 373's, MM lca's, Tokico springs/shocks

04-14-2002, 04:26 AM	#3
Unit 5302 Registered Member Join Date: May 1999 Posts: 5,246	Well #1 I'd have to say those are good, solid numbers for no tuning. #2, You'd be hard pressed to see much more than a true 300rwhp with your combo. That would equate to about 360hp at the crank. That's more like what I'd expect to see on a Holley intake combo. Having everything tuned right can result in some pretty impressive running engines, but if I were you, I'd be more than happy with 300rwhp when all it tuned and taken care of. The TFS TW cars seem to produce the max power around 5000rpms from the few dyno runs I've seen/heard about.

04-15-2002, 04:37 PM	#10
JRowlette Registered Member Join Date: Apr 2001 Location: Bowling Green, KY Posts: 95	Here's the graph __________________ '90 Black Notch: TFS TW heads, Stage 1 Cam, Street Intake, FMS 1.6 rockers, Kirban AFPR, 24# injectors, C&L 76mm MAF, 70mm Accufab TB/EGR, Tremec 3550, SPEC Stage 2 & Billet Flywheel, Alum DS, 4.10's w/ 31 Spline Eaton, Full MAC exhaust, etc. 286.7 RWHP @ 5100rpm, 313.7 TQ w/stock MAF, Inj, TB, and no tune Race weight : 3090 # w/ driver New Best - 12.82@107.9 w/1.74 60'

04-15-2002, 07:25 PM	#11
JRowlette Registered Member Join Date: Apr 2001 Location: Bowling Green, KY Posts: 95	OK, one more time. __________________ '90 Black Notch: TFS TW heads, Stage 1 Cam, Street Intake, FMS 1.6 rockers, Kirban AFPR, 24# injectors, C&L 76mm MAF, 70mm Accufab TB/EGR, Tremec 3550, SPEC Stage 2 & Billet Flywheel, Alum DS, 4.10's w/ 31 Spline Eaton, Full MAC exhaust, etc. 286.7 RWHP @ 5100rpm, 313.7 TQ w/stock MAF, Inj, TB, and no tune Race weight : 3090 # w/ driver New Best - 12.82@107.9 w/1.74 60'

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