View Full Version : Back into the big leagues: Project FRC
Pages :
1
2
3
4
5
6
7
8
9
10
11
[
12]
13
14
15
turbotalon1g
02-21-2019, 09:21 AM
That sounds perfect.
niterydr
02-22-2019, 07:20 PM
Going to be a busy weekend. All parts but the throttle body are here.
https://scontent-dfw5-2.xx.fbcdn.net/v/t1.0-9/53183590_2120860337991031_5998925854778851328_n.jp g?_nc_cat=105&_nc_ht=scontent-dfw5-2.xx&oh=24f9a8b2d18f638ddd2fa7e842e0d653&oe=5D29111C
Going to be a busy weekend!
Kracka
02-23-2019, 12:53 PM
Have fun!
niterydr
03-18-2019, 10:35 AM
Modifications:
PRC As Cast 225 heads with Hollow valves. Standard .660" Dual Valve Spring with Titanium retainer setup. -60cc chambers for a 10.9:1 or so target compression ratio
GM MLS Head gaskets with ARP Studs
228/232 TSP Cam on a 112
Dorman LS2 Manifold with 90MM LS2 throttle Body
85MM Maf, Blackwing intake, air bridge
XS Power 1-7/8" Longtubes, Catted x-pipe, Corsa Catback
HP tuners by me
93 Octane
44LB Trickflow (Accel) injectors (59% duty cycle)
NGK TR55 spark plugs, MSD Wires
Summit Bracket Racer Harmonic Balancer
RST Twin Disc Clutch with Steel Flywheel
Stock 1999 LS1 Shortblock with 87k on it. After the cam install cranking compression is 220-230 each hole so it is right around 11.0 comp ratio.
Smoothing of zero below. Smoothing of 3 put down 443-444, so it is consistent.
Street tune was 440hp and first pull. 445 was 3rd pull after adding a degree of timing and flattening the AFR. From here I switched from straight VE (with MAF disabled but installed) to a blend of tuning of MAF and VE. Another degree was attempted, minimal or no gain and picked up KR. All pulls in 4th gear.
https://cimg0.ibsrv.net/gimg/www.corvetteforum.com-vbulletin/2000x1550/first_vs_best_dyno_chart_rpm_b7a19c0ab640d01d8b0a4 54025ce563284d79a8c.jpg
This is the before: Good gains.
https://cimg5.ibsrv.net/gimg/www.corvetteforum.com-vbulletin/2000x1550/flex_fuel_bolt_on_tune_f6e3b68f95e1fcfc1c9d74aae0a 8080e90a9226d.jpg
1999 Factory LS1 Longblock with all the bolt on's above except the following:
78MM TB
36LB GTP Injectors
Same car summer before. Flex Fuel Tune (04 Tahoe PCM) running around E40. Airflow limited, not timing, as it made nearly this on pump gas a month prior on a different dyno. Car went 12.73@110.5 on this setup, 1.93x 60' street tires, 3200DA.
Overall I am pretty happy with the results. Lost nothing down low. Car pulls from idle (825rpm) without needing throttle on the twin disc. Pulls in 6th gear from 1400rpm with using the cruise control.
Welcome to input and questions/comments, just trying to document the journey. Next up is to pin down the starter issues and to put on the Hoosier QTP's and hit the track. Then probably a dry nitrous setup as I have plenty of injector left, will start small and keep pilling it until I hit my goal of deep and consistent 10's or maybe a 9.9999999999 with a tailwind and probably a 150 shot. I'd love 10's on just this setup, just have to go to the track and see where it is now.
Thanks for stopping by!
turbotalon1g
03-25-2019, 08:27 PM
I likey!
More updates, tracks have to be open in your area!?
niterydr
03-26-2019, 07:47 AM
I likey!
More updates, tracks have to be open in your area!?
I have my hoosier QTP's on the Camaro 16" wheels?
Tracks are open, just been busy. I am putting in a new starter as the last one failed on the dyno. Working on shimming that properly this week and adding additional shielding. Then hopefully turn on the 02 Sensors and finalizing the tune.
On the fence if I go to the track and walk it out to see what it does, or if I pull the driveline and upgrade it. Decisions decisions.
turbotalon1g
03-26-2019, 12:43 PM
https://youtu.be/pxjZM-d_ShI
Goat Blower
03-29-2019, 01:53 PM
+100whp, nice!
niterydr
03-30-2019, 08:34 AM
I've hit a snag.
Went to replace the starter (and shim it properly as I kept thinking something was wrong besides heat).
Found the attached image.
So that's neat. I figured when the injector stuck open (old 36lb gtp injector) and hydrolocked the motor, the kick back destroyed the tooth.
Thankfully McLeod can rebuild the flywheel for cheap ($50). Of course to do this I get to pull all of the stock drivetrain out.
So now the next phase begins, planning the future of the build, as putting the inferior parts back in a 2nd time pains my heart knowing I can't launch on it.
I briefly thought about selling the car after fixing this last issue and starting with a different platform, but I really like this car.
So I think I'll be tossing in all C6Z stuff (Differential, transmission) and a upgraded 2001-14 corvette 12mm torque tube.
This combo *should* be good to around 600-650hp/tq or so, more importantly allow me to try to get those low 60's. In asking around most guys are capable of cutting 1.5's no sweat, 1.4's with practice without breaking.
Yes I do plan on spraying nitrous to get to the limit of the drivetrain, why wouldn't I?
:drive1:
turbotalon1g
03-30-2019, 04:50 PM
what platform would you go to?
I'm interested to see what effect the C8 has on older model prices.
vBulletin® v3.8.4, Copyright ©2000-2025, Jelsoft Enterprises Ltd.