Tec3 First Dyno Run
06-10-2002, 09:49 PM
#1
Rennlist Member
Thread Starter
Tec3 First Dyno Run
Went in this morning to tune the car on a Dyno Jet dyno. It is truly amazing at how many things you can do with the new Tec3.
I had talked with Chris White last Friday about the dyno run and he was willing to answer questions via the phone today. His help was truly appreciated and saved me a lot of guessing in the dark.
The engine was pretty fat all the way around when I started and I kept sneaking up on the fuel/advance curve with Chris' help. In the end I had a 12 - 12.2 A/F 4000 - 6700 rpm. I left it around 12.5 from 2500 - 4000. I could have kept going but decided to quit, as I knew I'd be back later with race gas. Today's runs were all on 93 octane Shell.
Bottom line was 346 hp and 357 tq (rounded). This was with a relatively modest turbo upgrade and 83 lb. injectors. Boost for this run was 1.3 to 1.4 and no detonation recorded.
If you are thinking about a Tec3 give Chris a call. Mine is the third 944T that I know of which has benefited through his help.
Alan
I had talked with Chris White last Friday about the dyno run and he was willing to answer questions via the phone today. His help was truly appreciated and saved me a lot of guessing in the dark.
The engine was pretty fat all the way around when I started and I kept sneaking up on the fuel/advance curve with Chris' help. In the end I had a 12 - 12.2 A/F 4000 - 6700 rpm. I left it around 12.5 from 2500 - 4000. I could have kept going but decided to quit, as I knew I'd be back later with race gas. Today's runs were all on 93 octane Shell.
Bottom line was 346 hp and 357 tq (rounded). This was with a relatively modest turbo upgrade and 83 lb. injectors. Boost for this run was 1.3 to 1.4 and no detonation recorded.
If you are thinking about a Tec3 give Chris a call. Mine is the third 944T that I know of which has benefited through his help.
Alan
06-10-2002, 10:21 PM
#3
Rennlist Member
Thread Starter
It looks like a Turbonetics based on the T on the housing. I'm not sure as to the exact specs. It was recommended based on what I wanted to do. The inlet is about 2.8 inches, can't remember what the hot side size was. It came up a bit short but it does appear to be a quality piece. I may go bigger next year. I'll get it on the track in about 4 weeks. I may just decide to keep it as is for a couple of seasons. I only have to push 2500 lb. around the track.
From what I did today I'd say 1.4 is max. At 1.2 I'm making around 320 hp. Rand that level last summer without incident. What was interesting is that the boost was just about dead flat on top. I'm using a manual boost controller. No spikes observed and I data logged every run on the laptop.
Alan
From what I did today I'd say 1.4 is max. At 1.2 I'm making around 320 hp. Rand that level last summer without incident. What was interesting is that the boost was just about dead flat on top. I'm using a manual boost controller. No spikes observed and I data logged every run on the laptop.
Alan
06-10-2002, 11:39 PM
#5
Nordschleife Master
[quote]Originally posted by Alan C.:
<strong>It looks like a Turbonetics based on the T on the housing. I'm not sure as to the exact specs. It was recommended based on what I wanted to do. The inlet is about 2.8 inches</strong><hr></blockquote>
To4e 54mm trim? sounds like mine so far, what does the other half look like
<strong>It looks like a Turbonetics based on the T on the housing. I'm not sure as to the exact specs. It was recommended based on what I wanted to do. The inlet is about 2.8 inches</strong><hr></blockquote>
To4e 54mm trim? sounds like mine so far, what does the other half look like
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06-11-2002, 01:53 AM
#8
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Luke,
I was just trying to figure out the difference between various set-ups? Why did you think my inj's were to small for 400RWHP? Have you built alot of these motors for various racers? What set-ups did you use?
Paul
I was just trying to figure out the difference between various set-ups? Why did you think my inj's were to small for 400RWHP? Have you built alot of these motors for various racers? What set-ups did you use?
Paul
