Got back on the dyno!
10-15-2005, 11:04 PM
#1
Registered User
Thread Starter
Join Date: Apr 2000
Location: Charlotte, NC
Posts: 1,614
Got back on the dyno!
I went to the dyno tonight hoping to have a chance to tune in the alky injection. I was hoping that the alky would give me the extra fuel that I needed past 6k. It didn't 
My guess is because I was using a 50/50 mix.
There are two pulls here, one is with the 2.95 pulley and the other is with the stock vortech T-Trim pulley.
http://www.pcmforless.com/images/alv...TD10.15.05.jpg
http://www.pcmforless.com/images/alv...AE10.15.05.jpg
Anything above 480rwhp my fuels start rising. Good news is my fuel pressure is staying 45-47psi. I say that because I really do not feel like swapping pumps. I'm using 42SVO's right now.. I'm just going to swap up to a Motron 60 that way I can run my 15psi pulley later.
Here are the mods:
93 LT1 355 9:1 compression
210/220 500 500 114 LSA cam
Stock ported heads, stock valves
52mm throttle body
Hooker LT's Magnaflow catback
3.73 gears
T56
42LBS SVO injectors
T-Rex pump
Stock intank..
Vortech T-Trim Aftercooled
Fabricated water cooler
alky injection 15 gph 150psi.
I've only been to the track once with the new gears and with the lowest boost pulley I have it went a 7.5 @ 95.4 mph on 17'' BFG drag radials. I'm shooting to have it trap 100mph by the end of the year.
Heres the time slip.
http://www.pcmforless.com/images/alv...d/timeslip.JPG
BTW.. I was quite suprized to see the fuel pressure still rising when I shut the car down tonight.. I believe alot of people run out of fuel with the T-Rex/stock intank because they run into voltage problems. I've got 10 ga. wire running back for the T-Rex (both power and redundant ground) and the stock intank is on the stock wiring. If you put work into a fluid you get a change in KE, PE, or H. This talk about one being a restriction over the other is for the most part BS IMHO. Granted you have to compound pump ineffiecencies but its not like the T-Rex will never flow good because the intank only flows X. Fuel pressure was 43 at the start of the run and 47 when I shut down... Thats proof enough for me that its working.
My guess is because I was using a 50/50 mix. There are two pulls here, one is with the 2.95 pulley and the other is with the stock vortech T-Trim pulley.
http://www.pcmforless.com/images/alv...TD10.15.05.jpg
http://www.pcmforless.com/images/alv...AE10.15.05.jpg
Anything above 480rwhp my fuels start rising. Good news is my fuel pressure is staying 45-47psi. I say that because I really do not feel like swapping pumps. I'm using 42SVO's right now.. I'm just going to swap up to a Motron 60 that way I can run my 15psi pulley later.
Here are the mods:
93 LT1 355 9:1 compression
210/220 500 500 114 LSA cam
Stock ported heads, stock valves
52mm throttle body
Hooker LT's Magnaflow catback
3.73 gears
T56
42LBS SVO injectors
T-Rex pump
Stock intank..
Vortech T-Trim Aftercooled
Fabricated water cooler
alky injection 15 gph 150psi.
I've only been to the track once with the new gears and with the lowest boost pulley I have it went a 7.5 @ 95.4 mph on 17'' BFG drag radials. I'm shooting to have it trap 100mph by the end of the year.
Heres the time slip.
http://www.pcmforless.com/images/alv...d/timeslip.JPG
BTW.. I was quite suprized to see the fuel pressure still rising when I shut the car down tonight.. I believe alot of people run out of fuel with the T-Rex/stock intank because they run into voltage problems. I've got 10 ga. wire running back for the T-Rex (both power and redundant ground) and the stock intank is on the stock wiring. If you put work into a fluid you get a change in KE, PE, or H. This talk about one being a restriction over the other is for the most part BS IMHO. Granted you have to compound pump ineffiecencies but its not like the T-Rex will never flow good because the intank only flows X. Fuel pressure was 43 at the start of the run and 47 when I shut down... Thats proof enough for me that its working.
10-15-2005, 11:31 PM
#4
Registered User
Join Date: Oct 2002
Posts: 378
Re: Got back on the dyno!
Hey Alvin I can tell you a place that would appreciate at least one trip from you guys. That is El Paso TX. I just moved from Greenville to El Paso (due to the Army) and there is a big group of guys here wanting to tune there cars. Can you email or pm me about the possibility. Thanks.
10-15-2005, 11:34 PM
#5
Registered User
Thread Starter
Join Date: Apr 2000
Location: Charlotte, NC
Posts: 1,614
Re: Got back on the dyno!
Sure, i've been all over the place this year alone.. Bryan has probally been gone twice as much as I have.. Give us a call or drop us a email. We have a section for that type of thing on our website under forums.
Thread
Thread Starter
Forum
Replies
Last Post
armedtrigger
LT1 Based Engine Tech
10
02-24-2015 08:30 PM