t04 60-1 how much hp?
#26
Is there any difference between the HKS T04E and the XS T04E? I know the HKS one allows you to keep the air pump- but are there any diffences in the turbos? A/R, compressor wheels, etc?
#27
I use two 480 cc additional injectors with a t78 at 14lbs and have more fuel than i need. You can get the kit from SDSEFI .com . very reasonable with two easy adjustments. You can put the injectors in a greddy elbow or use the supplied mounts. Chevk out their site!
wouter
wouter
#29
Originally posted by RICE RACING
Rotary turbo's and pump gas....
10.5 to 10.9 : 1 = rich (results in about 10% extra wear due to over fuel)
11.0 to 11.5 : 1 = ideal (for engine life)
11.6 to 12.5 :1 = ideal for max power (HIGH risk of engine failure "detonation" at power levels over 380rwhp)
12.5 & higher :1 = send me an email regarding full engine rebuild !
On race gas it is a different story but not as lean as some people would have you believe. The above is all with acceptable amount of saftey factor.
Rotary turbo's and pump gas....
10.5 to 10.9 : 1 = rich (results in about 10% extra wear due to over fuel)
11.0 to 11.5 : 1 = ideal (for engine life)
11.6 to 12.5 :1 = ideal for max power (HIGH risk of engine failure "detonation" at power levels over 380rwhp)
12.5 & higher :1 = send me an email regarding full engine rebuild !
On race gas it is a different story but not as lean as some people would have you believe. The above is all with acceptable amount of saftey factor.
WFO-11.5:1 no leaner
Idle-12.6:1
Cruise-13.8-14.5
Look good Rice?
There is a gas station 5 miles away from me that sells 110 race fuel, If I were to do a 50:50 mix with that and 92 octane what would you say for tuning?
#30
#31
Originally posted by Turbo Lag
Every time I try to get out, they pull me back in.
Didn't want to start, but it's too fun to stop.
The To4 is a sorry excuse for a turbo. Sorry to burst your bubble, but the fact is big turbos are the way to go.
Every time I try to get out, they pull me back in.
Didn't want to start, but it's too fun to stop.
The To4 is a sorry excuse for a turbo. Sorry to burst your bubble, but the fact is big turbos are the way to go.
#32
Originally posted by Turbo Lag
Every time I try to get out, they pull me back in.
Didn't want to start, but it's too fun to stop.
The To4 is a sorry excuse for a turbo. Sorry to burst your bubble, but the fact is big turbos are the way to go.
Every time I try to get out, they pull me back in.
Didn't want to start, but it's too fun to stop.
The To4 is a sorry excuse for a turbo. Sorry to burst your bubble, but the fact is big turbos are the way to go.
U 2 funny...
Rick
1993 RX-7
"got too much power for the street between 3k to 9k rpm"
#33
Full Member
Joined: May 2001
Posts: 137
Likes: 0
From: S.F. Valley
back in 1997, my friend used a garrett 60-1 turbo with a/r of .96 p-trim turbine wheel tang., and he developed a maximum of 421 rwhp on pump gas 92-octane with octane booster on a 3rd gen stock engine, powered by tec-II. this been done on numerous dyno runs.
#34
Originally posted by 93blackr1
back in 1997, my friend used a garrett 60-1 turbo with a/r of .96 p-trim turbine wheel tang., and he developed a maximum of 421 rwhp on pump gas 92-octane with octane booster on a 3rd gen stock engine, powered by tec-II. this been done on numerous dyno runs.
back in 1997, my friend used a garrett 60-1 turbo with a/r of .96 p-trim turbine wheel tang., and he developed a maximum of 421 rwhp on pump gas 92-octane with octane booster on a 3rd gen stock engine, powered by tec-II. this been done on numerous dyno runs.
Rick
1993 RX-7
"Now with new and improved "welded" frame rails - the rails were cracked!"
#35
Originally posted by setzep
I think this is what Hitman posted a while back:
WFO-11.5:1 no leaner
Idle-12.6:1
Cruise-13.8-14.5
Look good Rice?
There is a gas station 5 miles away from me that sells 110 race fuel, If I were to do a 50:50 mix with that and 92 octane what would you say for tuning?
I think this is what Hitman posted a while back:
WFO-11.5:1 no leaner
Idle-12.6:1
Cruise-13.8-14.5
Look good Rice?
There is a gas station 5 miles away from me that sells 110 race fuel, If I were to do a 50:50 mix with that and 92 octane what would you say for tuning?
You could go to 12.0 or even leaner with that combo, however this will put alot more stress on your apex seals and turbo due to higher running temperatures.
Stick with mid 11's and if you like advance the timming 2 deg over what you normally run at WOT for that combination of 110 & 92 fuel at 50/50. You can run it at the 12.0 if it is for a drag application but not for circuit type racing.
#38
Stability, and not needing to give it many revs on take up of the clutch.
Seems insignifcant but it realy makes a difference in real hot conditions and trying to drive the car of from a stand (with minimal or any extra revs on itinial "bite" of the clutch before you use any extra gas) still while conserving your million dollar twin plate clutch
Seems insignifcant but it realy makes a difference in real hot conditions and trying to drive the car of from a stand (with minimal or any extra revs on itinial "bite" of the clutch before you use any extra gas) still while conserving your million dollar twin plate clutch
#40
Well after tuning my Haltech tonight here are some questions:
@ 7 psi of boost at A/F levels richer than 12.1:1 it would break up anything above 4000 rpm. This is with non-seq, intake, dp, mp, cb, & stock IC. Plugs were 7's and 9's. From 12.2:1 and up it would pull smooth. When I tried getting it in the 11s I would lose as much as 50 hp and it was all over the place. I agree with you on the A/F ratios needing to be that rich, but if I can't get power for whatever reason, then what good is it? Shouldn't a stock ignition sytem be able to handle 7 psi w/ that A/F ratio? I was making 220-230RWHP at 12.2:1 A/F.
My idle was also set between 16 and 14s, which made for a smooth idle and tip in was ok as well as decel control. Is there anything I'm missing here? Why not have more tip-in fuel as opposed to idle fuel? I mean isn't more fuel at idle just going to foul out your plugs sooner?
@ 7 psi of boost at A/F levels richer than 12.1:1 it would break up anything above 4000 rpm. This is with non-seq, intake, dp, mp, cb, & stock IC. Plugs were 7's and 9's. From 12.2:1 and up it would pull smooth. When I tried getting it in the 11s I would lose as much as 50 hp and it was all over the place. I agree with you on the A/F ratios needing to be that rich, but if I can't get power for whatever reason, then what good is it? Shouldn't a stock ignition sytem be able to handle 7 psi w/ that A/F ratio? I was making 220-230RWHP at 12.2:1 A/F.
My idle was also set between 16 and 14s, which made for a smooth idle and tip in was ok as well as decel control. Is there anything I'm missing here? Why not have more tip-in fuel as opposed to idle fuel? I mean isn't more fuel at idle just going to foul out your plugs sooner?
#41
IT almost sounds like you have it backwards...
11.0:1 is richer than
12.2:1
Like has been said here you want to aim for mid 11s so 11.5 is great.. even 11.1 is good..
BTW after you get your AF perfect work on your timming...
-Zach
11.0:1 is richer than
12.2:1
Like has been said here you want to aim for mid 11s so 11.5 is great.. even 11.1 is good..
BTW after you get your AF perfect work on your timming...
-Zach
#42
Originally posted by spyfish007
Well after tuning my Haltech tonight here are some questions:
@ 7 psi of boost at A/F levels richer than 12.1:1 it would break up anything above 4000 rpm. This is with non-seq, intake, dp, mp, cb, & stock IC. Plugs were 7's and 9's. From 12.2:1 and up it would pull smooth. When I tried getting it in the 11s I would lose as much as 50 hp and it was all over the place. I agree with you on the A/F ratios needing to be that rich, but if I can't get power for whatever reason, then what good is it? Shouldn't a stock ignition sytem be able to handle 7 psi w/ that A/F ratio? I was making 220-230RWHP at 12.2:1 A/F.
My idle was also set between 16 and 14s, which made for a smooth idle and tip in was ok as well as decel control. Is there anything I'm missing here? Why not have more tip-in fuel as opposed to idle fuel? I mean isn't more fuel at idle just going to foul out your plugs sooner?
Well after tuning my Haltech tonight here are some questions:
@ 7 psi of boost at A/F levels richer than 12.1:1 it would break up anything above 4000 rpm. This is with non-seq, intake, dp, mp, cb, & stock IC. Plugs were 7's and 9's. From 12.2:1 and up it would pull smooth. When I tried getting it in the 11s I would lose as much as 50 hp and it was all over the place. I agree with you on the A/F ratios needing to be that rich, but if I can't get power for whatever reason, then what good is it? Shouldn't a stock ignition sytem be able to handle 7 psi w/ that A/F ratio? I was making 220-230RWHP at 12.2:1 A/F.
My idle was also set between 16 and 14s, which made for a smooth idle and tip in was ok as well as decel control. Is there anything I'm missing here? Why not have more tip-in fuel as opposed to idle fuel? I mean isn't more fuel at idle just going to foul out your plugs sooner?
#43
Originally posted by zyounker
IT almost sounds like you have it backwards...
11.0:1 is richer than
12.2:1
Like has been said here you want to aim for mid 11s so 11.5 is great.. even 11.1 is good..
BTW after you get your AF perfect work on your timming...
-Zach
IT almost sounds like you have it backwards...
11.0:1 is richer than
12.2:1
Like has been said here you want to aim for mid 11s so 11.5 is great.. even 11.1 is good..
BTW after you get your AF perfect work on your timming...
-Zach
The instrumentation is fine .... many race cars tune on this dyno with the AF meter and it has a current O2 sensor in it.
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immanuel__7
2nd Generation Specific (1986-1992)
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09-05-15 11:23 AM