LT1 Dyno Archive
TECH Fanatic
Joined: Oct 2003
Posts: 1,101
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420 hp 374 torque
CHS heads and FMS cam, stock bottom end
hp was peaked at 5900 due to a high end miss... so there is more in it.
oh and some previous combos
396 365 FMS cam and ARE heads
380 356 306 cam and ARE heads
344 356 hot cam and stock heads
CHS heads and FMS cam, stock bottom end
hp was peaked at 5900 due to a high end miss... so there is more in it.
oh and some previous combos
396 365 FMS cam and ARE heads
380 356 306 cam and ARE heads
344 356 hot cam and stock heads
Last edited by blkchevyz; Oct 21, 2005 at 05:58 PM.
378/368 same setup as below except hand ported heads verses the stage 2 heads
396/370 same setup as below except no ported intake manifold, 58mm throttle body, injectors, undrive pulley, Zr1 rims, 12 bolt and drive shaft.
403/374
Engine -
Stock rebuilt 350 Lt1
ARD stage 2 ported stock castings
Comp Cams 230/244, .544/.576
Comp Cams 1.6 self aligning roller rockers
Comp Cams 7.200 hardened pushrods
Crane dual springs
Lt4 timing chain
GM oem lifters
March underdrive crank pulley
Intake -
Moroso cold air intake
Arizona Speed & Marine 58mm throttle body
Lt1 intake manifold that has been port matched to the heads and for the throttle body
Exhaust -
Ceramic coated Hooker offroad 1 3/4 long tube headers
Torque Tech 3 inch X pipe with Dynomax Bullet mufflers
Custom dual 3 inch exhaust ran over the axle and out the back
Ignition -
Dynaspark distributor
Msd 6al
Msd coil
NGK TR55's
Thunderracing OTVC Wires
Fuel System -
Racetronix Walboro 255 pump
SVO 30lb injectors
All this was through a Moser 12 bolt with 3.90 gears, 33 spline axles, 3 inch steel drive shaft and 17x11 Zr1 rims.
396/370 same setup as below except no ported intake manifold, 58mm throttle body, injectors, undrive pulley, Zr1 rims, 12 bolt and drive shaft.
403/374
Engine -
Stock rebuilt 350 Lt1
ARD stage 2 ported stock castings
Comp Cams 230/244, .544/.576
Comp Cams 1.6 self aligning roller rockers
Comp Cams 7.200 hardened pushrods
Crane dual springs
Lt4 timing chain
GM oem lifters
March underdrive crank pulley
Intake -
Moroso cold air intake
Arizona Speed & Marine 58mm throttle body
Lt1 intake manifold that has been port matched to the heads and for the throttle body
Exhaust -
Ceramic coated Hooker offroad 1 3/4 long tube headers
Torque Tech 3 inch X pipe with Dynomax Bullet mufflers
Custom dual 3 inch exhaust ran over the axle and out the back
Ignition -
Dynaspark distributor
Msd 6al
Msd coil
NGK TR55's
Thunderracing OTVC Wires
Fuel System -
Racetronix Walboro 255 pump
SVO 30lb injectors
All this was through a Moser 12 bolt with 3.90 gears, 33 spline axles, 3 inch steel drive shaft and 17x11 Zr1 rims.
Last edited by lt197formula; Apr 6, 2007 at 02:43 PM.
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Teching In
Joined: Nov 2004
Posts: 39
Likes: 0
Originally Posted by Lethalchem
1996 LT1
117,000 miles
Full exhaust (w/ cutout) and a nitrous cam: 342rwhp/334tq on Motor. I have yet to install the bottle.
117,000 miles
Full exhaust (w/ cutout) and a nitrous cam: 342rwhp/334tq on Motor. I have yet to install the bottle.
468rwhp/515tq without a tune.
On The Tree
Joined: Dec 2005
Posts: 111
Likes: 0
N/A LT1 355 Forged Bottom end,pace setter LT's,11.1 compression,SLP intake,GM847 cam,52mm TB,3in. exaust W/cutout,ported LT1 stage 2 RGR heads, electric water pump,1.6RR,DYNO tune,160 thurmo. stat, stock MAF,2600 stall, made 391RWHP. I expect to go over the 400RWHP mark with pullies. 
Last edited by formula355LT1; Jan 4, 2006 at 11:16 PM.
Teching In
Joined: Nov 2001
Posts: 28
Likes: 0
From: Elburn, IL-The land of Corn and Fast LT1's
Originally Posted by formula355LT1
N/A LT1 355 Forged Bottom end,pace setter LT's,11.1 compression,SLP intake,GM847 cam,52mm TB,3in. exaust W/cutout,ported LT1 stage 2 RGR heads, electric water pump,1.6RR,DYNO tune,160 thurmo. stat, stock MAF,2600 stall, made 391RWHP. I expect to go over the 400RWHP mark with pullies.
Did Speed Inc. do the build and/or tune?
Is the intake manifold stock?
What was the torque #?
Let me know. I have a very similar set-up coming together.
Thanks,
Eric
On The Tree
Joined: Dec 2005
Posts: 111
Likes: 0
Gotta Love RGR Heads...no one but people from Chicago knows about him though...what a shame!
Did Speed Inc. do the build and/or tune?
Is the intake manifold stock?
What was the torque #?
Let me know. I have a very similar set-up coming together.
Thanks,
Eric
__________________
Yes Speed Inc. Did the build and tune. The intake manifold is stock except for the port match to the heads. As for the torque I do not know yet because I have the car in there right now getting re-tuned with a 52mm Throttle body and new ECM put in because mine was not listening to there tuner and the torque converter would not stop locking up even though it was set to lock up at 200MPH. Lary Emailed me a couple days ago and told me that the base file was done and it made 391RWHP but there tuning softwhere took a **** so I'm waiting for an update. The prevous RWHP before the throttle body when I had a stock Throttle body and no air foil was was 378.60RWHP and 351.76RWTQ. So 13RWHP form a throttle body was definately worth it. What exactly are you getting done to your car?
Did Speed Inc. do the build and/or tune?
Is the intake manifold stock?
What was the torque #?
Let me know. I have a very similar set-up coming together.
Thanks,
Eric
__________________
Yes Speed Inc. Did the build and tune. The intake manifold is stock except for the port match to the heads. As for the torque I do not know yet because I have the car in there right now getting re-tuned with a 52mm Throttle body and new ECM put in because mine was not listening to there tuner and the torque converter would not stop locking up even though it was set to lock up at 200MPH. Lary Emailed me a couple days ago and told me that the base file was done and it made 391RWHP but there tuning softwhere took a **** so I'm waiting for an update. The prevous RWHP before the throttle body when I had a stock Throttle body and no air foil was was 378.60RWHP and 351.76RWTQ. So 13RWHP form a throttle body was definately worth it. What exactly are you getting done to your car?
358/360 on the CM 224/236 114LSA .535/.555 lift.
Champion racing heads, penals, florida
Stage 2 port and polish on Iron heads
Thru a 4L60E and Super Yank 3500.
8.5" 10 bolt with 4.10s
Base Bryan Heter mail order tune, no dyno tuning or revisions.
Car was consistantly in the 107-109 in florida heat and humidity. never raced in cold weather.
BTW this was a B body
Champion racing heads, penals, florida
Stage 2 port and polish on Iron heads
Thru a 4L60E and Super Yank 3500.
8.5" 10 bolt with 4.10s
Base Bryan Heter mail order tune, no dyno tuning or revisions.
Car was consistantly in the 107-109 in florida heat and humidity. never raced in cold weather.
BTW this was a B body
Teching In
Joined: Nov 2001
Posts: 28
Likes: 0
From: Elburn, IL-The land of Corn and Fast LT1's
Originally Posted by formula355LT1
Yes Speed Inc. Did the build and tune. The intake manifold is stock except for the port match to the heads. As for the torque I do not know yet because I have the car in there right now getting re-tuned with a 52mm Throttle body and new ECM put in because mine was not listening to there tuner and the torque converter would not stop locking up even though it was set to lock up at 200MPH. Lary Emailed me a couple days ago and told me that the base file was done and it made 391RWHP but there tuning softwhere took a **** so I'm waiting for an update. The prevous RWHP before the throttle body when I had a stock Throttle body and no air foil was was 378.60RWHP and 351.76RWTQ. So 13RWHP form a throttle body was definately worth it. What exactly are you getting done to your car?
I'm going to let the crew at Speed Inc assemble it all, install it and tune it.
It's kind of a budget combo and probably not the best matched, but it should work pretty well. I am looking for about 375-380 RWHP...hopefully run 11.80s or so on motor...mid 10s on a 200 shot.
Good Luck with everything!
Eric
On The Tree
Joined: Dec 2005
Posts: 111
Likes: 0
Originally Posted by Spray'n LT1
I'm getting a Budget 355 (TRW Pistons, Eagle H-Beam Rods, Stock Crank), RGR Stage 1 Heads w/ Stock Valves, Larry's Old Cam, 1.6 RRs, Stock Intake, 52mm TB, LT4 ED Timing Set, Stock Water Pump, SLP Shorty Headers (Might switch to Hookers or Pacesetters), Borla...all through a FLP Level 4 4L60E, Vig 3200, and Stock 10 Bolt w/3.23s (until it explodes) Oh, and Lots of Spray!
I'm going to let the crew at Speed Inc assemble it all, install it and tune it.
It's kind of a budget combo and probably not the best matched, but it should work pretty well. I am looking for about 375-380 RWHP...hopefully run 11.80s or so on motor...mid 10s on a 200 shot.
Good Luck with everything!
Eric
I'm going to let the crew at Speed Inc assemble it all, install it and tune it.
It's kind of a budget combo and probably not the best matched, but it should work pretty well. I am looking for about 375-380 RWHP...hopefully run 11.80s or so on motor...mid 10s on a 200 shot.
Good Luck with everything!
Eric
What is "larys old cam"?(lift,duration,lsa)