O2 Sensor & Dyno run
Thread Starter
Drifting
Joined: May 2003
Posts: 1,979
Likes: 48
From: Lakeport CA
O2 Sensor & Dyno run
I had to replace my O2 sensor on the road Fri. night, check eng popped twice & power/instant milage reading went to crap. Parts house I found open after 5:30 PM only had the Bosch for a ZR1. But it was heated & fit the TPIS LT headers on my L98. Figured it was better than where I was. Gas milage went WAY up, hit 35MPG with the on board which I know is optimistic, but figure I still got 30 out of it.
Next AM, attended a dyno day at Synergy in Fremont (Thanks Guys!).
My bolt ons, stock bottom end showed 307HP at the wheels. Don't have charts w/ me but I think torque was close to 400? (will fix the details on this post tonight.)
How does that stack up againts stock or other modded L98s?
Next AM, attended a dyno day at Synergy in Fremont (Thanks Guys!).
My bolt ons, stock bottom end showed 307HP at the wheels. Don't have charts w/ me but I think torque was close to 400? (will fix the details on this post tonight.)
How does that stack up againts stock or other modded L98s?
Last edited by Trog; Aug 29, 2005 at 01:24 PM.
Thread Starter
Drifting
Joined: May 2003
Posts: 1,979
Likes: 48
From: Lakeport CA
Okay, here are the correct figures from the printout:
Peak HP 308.5 @ 4619 rpm
Peak Tq 400.12 @ 3300 rpm
Any other L98 with just bolt on or even stock care to tell me how I'm doing?
Peak HP 308.5 @ 4619 rpm
Peak Tq 400.12 @ 3300 rpm
Any other L98 with just bolt on or even stock care to tell me how I'm doing?
Le Mans Master
Joined: Mar 2001
Posts: 9,464
Likes: 1
From: Modesto CA
Originally Posted by Trog
Okay, here are the correct figures from the printout:
Peak HP 308.5 @ 4619 rpm
Peak Tq 400.12 @ 3300 rpm
Peak HP 308.5 @ 4619 rpm
Peak Tq 400.12 @ 3300 rpm
Thread Starter
Drifting
Joined: May 2003
Posts: 1,979
Likes: 48
From: Lakeport CA
Thanks, glad to hear I'm doing good. I had some good comments at the dyno but wasn't sure if they were teasing or serious. There were some awsome numbers from C5s way higher than mine.
I think all the mods are in my sig... I'll review & edit in a second
To clarify:
TPIS big mouth intake & runners, I matched the upper plenum, base & head intakes as best I could. No egr, air pump or plumbing.
Ajust. Fuel Press.
Port & polished stock 113 heads by me. So no big cuts just clean & polish. New springs, seals, guide plates & 3 angle valve job by John Peters Sr.
1.6 Harlin Sharp roller rockers
.029" corteco head gaskets (supposedly worth .5 compression)
New rings on stock pistons
TPIS long tube headers & Y pipe
Power effects cat back w/ valves set full open for the dyno pull
Stock cat with center of honeycomb cut out.
Accell 300+ ignition box & high output coil
Air pump eliminator bracket
March underdrive pully (crank, water pump & alternator)
Crank was polished but reinstalled origional bearing inserts. At 80K miles & synthetic oil its whole life they had almost zero wear. Machine shop said, "don't waste your $".
I think thats it but will adjust if I remember anything else.
I think all the mods are in my sig... I'll review & edit in a second
To clarify:
TPIS big mouth intake & runners, I matched the upper plenum, base & head intakes as best I could. No egr, air pump or plumbing.
Ajust. Fuel Press.
Port & polished stock 113 heads by me. So no big cuts just clean & polish. New springs, seals, guide plates & 3 angle valve job by John Peters Sr.
1.6 Harlin Sharp roller rockers
.029" corteco head gaskets (supposedly worth .5 compression)
New rings on stock pistons
TPIS long tube headers & Y pipe
Power effects cat back w/ valves set full open for the dyno pull
Stock cat with center of honeycomb cut out.
Accell 300+ ignition box & high output coil
Air pump eliminator bracket
March underdrive pully (crank, water pump & alternator)
Crank was polished but reinstalled origional bearing inserts. At 80K miles & synthetic oil its whole life they had almost zero wear. Machine shop said, "don't waste your $".
I think thats it but will adjust if I remember anything else.
Last edited by Trog; Aug 30, 2005 at 01:52 PM.
