Redyno of APE 370ci, Incon TT
Thread Starter
TECH Resident
Joined: Jan 2002
Posts: 956
Likes: 0
From: Phoenix, AZ
Redyno of APE 370ci, Incon TT As you'll see fuel is my issue . . . still running what Incon provided, which I believe is the Walbro 340. It's not even rising 1:1 with boost and then it starts dropping after 4500rpm. There are two runs here, the best of the day ( up til the fuel issue ), then backed off to make it safer until I get the fuel issues sorted out. Here's the dyno sheet:
Here's a vid clip of my gauges:
http://home.earthlink.net/~dougboreland/gauges.wmv
- Dug
Here's a vid clip of my gauges:
http://home.earthlink.net/~dougboreland/gauges.wmv
- Dug
Kinda hard to make out the gauges, but how many pounds of boost was that at, looks about 12? Also, I thought the kit came with a Walbro 255?
Last edited by solobaric; Mar 21, 2005 at 08:28 PM.
Trending Topics
Thread Starter
TECH Resident
Joined: Jan 2002
Posts: 956
Likes: 0
From: Phoenix, AZ
Thanks cablebandit . . . do you run one external? Any good examples with pics out there?
2fast4u, I'm pretty sure that's the one I've got. It's also still at the rear, I know it needs to be up front. Is that why the fuel pressure isn't correct, or could there be another reason for that?
solobaric, it was set @ 10, but was jumped to 12 a little later in the rpm's on that particular run.
- Dug
2fast4u, I'm pretty sure that's the one I've got. It's also still at the rear, I know it needs to be up front. Is that why the fuel pressure isn't correct, or could there be another reason for that?
solobaric, it was set @ 10, but was jumped to 12 a little later in the rpm's on that particular run.
- Dug
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
i have two 340s inside. I went to hydraulic place and got the tee fitting setup by buying what I think is this: 2- 5/16elbows..barbed ends for hoses to pumps
1- teee that has 2- 5/16in and 1- 3/8 out
1- 3/8 barbed out to go to fuel pump sender
I also bought some 5/15 hydraulic hose that was suitable for 70psi fuel pressure and wouldnt be hurt by fuel and 3/8 hose to go from tee out to fuel pump sender. Cut bottom of stock fuel bucket out and basically clamped fuel pumps together side by side and wedged em in the bucket using the rubber sleeve that was on stock pump. A little more stuff but thats the basics of my dual pump setup. I'll post more if ya like.
1- teee that has 2- 5/16in and 1- 3/8 out
1- 3/8 barbed out to go to fuel pump sender
I also bought some 5/15 hydraulic hose that was suitable for 70psi fuel pressure and wouldnt be hurt by fuel and 3/8 hose to go from tee out to fuel pump sender. Cut bottom of stock fuel bucket out and basically clamped fuel pumps together side by side and wedged em in the bucket using the rubber sleeve that was on stock pump. A little more stuff but thats the basics of my dual pump setup. I'll post more if ya like.
Regardless of pumps and injectors, you should see the regulator add fuel pressure when boost come on. A rear mounted regulator works fine at least to 600rwhp. suggest you stay away from incon regulator. btw, for some reason my car did not see a fp rise under boost until it was dialed up past 7 pounds.
TECH Addict
Joined: Nov 2001
Posts: 2,659
Likes: 1
From: Bellevue, Wa
a number of the incon regulators didn't ever work right? maybe you got one.
I bought one off a guy years ago and it never worked.
popped a CAS regulator in and it's worked perfectly for years.
I bought one off a guy years ago and it never worked.
popped a CAS regulator in and it's worked perfectly for years.
Originally Posted by DaveSchott
Regardless of pumps and injectors, you should see the regulator add fuel pressure when boost come on. A rear mounted regulator works fine at least to 600rwhp. suggest you stay away from incon regulator. btw, for some reason my car did not see a fp rise under boost until it was dialed up past 7 pounds.
mine is still mounted in the rear.....rises fine
even with 700rwhp
CAS regulator 
Yep, some of the Incon regulators never did cut it...and never did rise correctly 1:1.
I agree with everyone else though, go with dual pumps...you need them for the power that the combo will make.
I just plumbed my fuel system this weekend and am almost done with it:
- stock sumped tank
- 2 -8 lines to pre-filters
- 2 Walbro 392 GSL pumps
- Y into -10
- -10 filter and -10 to the front of the car
- Y into -8 to Speed Inc. Rails
- 2 -6 lines from rails to Aeromotive regulator
- -8 return line to tank
I'll post some pics when it is all done.
I agree with everyone else though, go with dual pumps...you need them for the power that the combo will make.
I just plumbed my fuel system this weekend and am almost done with it:
- stock sumped tank
- 2 -8 lines to pre-filters
- 2 Walbro 392 GSL pumps
- Y into -10
- -10 filter and -10 to the front of the car
- Y into -8 to Speed Inc. Rails
- 2 -6 lines from rails to Aeromotive regulator
- -8 return line to tank
I'll post some pics when it is all done.
LOL, hard to answer since I have had some of the parts laying around for quite a while now.
I think I spent around $400 with Racetronix for a custom harness and the pumps. This was definitely worth it though since it came with fuses/relays, etc. They even came up with a plug and play method for me to add my BAP back in if I ever needed it again.
I probably have around $600 or so in associated fittings, and probably another $300 in braided line. Rails were $160, the regulator was around $150, and the sump and labor to weld it to the stock tank was probably around $125.
So, all told at a rough estimate I am about $1600 into it...but in retrospect it is probably one of the cheaper things that I have bought for this sled
I think I spent around $400 with Racetronix for a custom harness and the pumps. This was definitely worth it though since it came with fuses/relays, etc. They even came up with a plug and play method for me to add my BAP back in if I ever needed it again.
I probably have around $600 or so in associated fittings, and probably another $300 in braided line. Rails were $160, the regulator was around $150, and the sump and labor to weld it to the stock tank was probably around $125.
So, all told at a rough estimate I am about $1600 into it...but in retrospect it is probably one of the cheaper things that I have bought for this sled