C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

DYNO RESULTS! 385 Superram

Thread Tools
 
Search this Thread
 
Old 05-10-2015, 07:25 PM
  #21  
cypher85
Instructor
Thread Starter
 
cypher85's Avatar
 
Member Since: Jun 2010
Location: Avon IN
Posts: 245
Received 2 Likes on 2 Posts

Default

Originally Posted by rithsleeper
Very impressive numbers. Almost too good. Looks like your combo is perfectly balanced. It goes to show a balanced assembly is better than just big parts. There are tons of guys on the thirdgen site that on paper should be making more power than your setup and they don't even break 400hp or tq and they run stealth rams...

Good going!
Thank you, I thought the same thing when the results came. I have often considered the stealth ram. If one day I decide to ditch the superram I'll be buying a stealth ram.

Originally Posted by l98tpi
I would first put 6 quarts in the pan. Then calibrate the dipstick. After that you could put half quart in the filter and start and let run a couple minutes. Then check the dipstick and add to the full line. Total capacity will depend on the filter you use too. The most important thing to do is calibrate that dipstick with 6 quarts in the pan.
Awesome thanks for the info!
Old 05-10-2015, 10:27 PM
  #22  
Vic'89
Safety Car
 
Vic'89's Avatar
 
Member Since: Jun 2000
Location: Long Island, NY
Posts: 4,867
Received 24 Likes on 23 Posts

Default

Originally Posted by cypher85

Once I put on some sticky rear tires I'll be off to the strip to see what kind of numbers I get. Will be interesting to see what kind of MPH I can achieve.
I think with your 6 speed , 122 MPH sounds like a doable goal.

Vic
Old 05-11-2015, 03:32 AM
  #23  
cypher85
Instructor
Thread Starter
 
cypher85's Avatar
 
Member Since: Jun 2010
Location: Avon IN
Posts: 245
Received 2 Likes on 2 Posts

Default

Originally Posted by Vic'89
I think with your 6 speed , 122 MPH sounds like a doable goal.

Vic
I will be very happy with that. I'm looking at picking up some ET streets; unsure of the tire width and height.
Old 05-11-2015, 12:23 PM
  #24  
89L98TPI
Racer
 
89L98TPI's Avatar
 
Member Since: Sep 2011
Location: Indiana
Posts: 445
Likes: 0
Received 11 Likes on 7 Posts

Default

Great numbers!! Makes me want to keep my SR almost.
Old 05-11-2015, 09:02 PM
  #25  
tpi 421 vette
Melting Slicks
 
tpi 421 vette's Avatar
 
Member Since: Mar 2002
Location: S.L.C. UT
Posts: 3,067
Received 115 Likes on 67 Posts

Default

Congrats, nice numbers
Old 05-11-2015, 09:24 PM
  #26  
Vic'89
Safety Car
 
Vic'89's Avatar
 
Member Since: Jun 2000
Location: Long Island, NY
Posts: 4,867
Received 24 Likes on 23 Posts

Default

Originally Posted by cypher85
I will be very happy with that. I'm looking at picking up some ET streets; unsure of the tire width and height.
I run 26x11.5 ET Streets, they dead hook every time.

Vic
Old 05-12-2015, 12:25 AM
  #27  
cypher85
Instructor
Thread Starter
 
cypher85's Avatar
 
Member Since: Jun 2010
Location: Avon IN
Posts: 245
Received 2 Likes on 2 Posts

Default

Originally Posted by Vic'89
I run 26x11.5 ET Streets, they dead hook every time.

Vic
Excellent, thank you for the info. 122 mph would be great!
Old 05-12-2015, 05:59 AM
  #28  
88BlackZ-51
Race Director
 
88BlackZ-51's Avatar
 
Member Since: May 2003
Posts: 10,745
Received 41 Likes on 26 Posts

Default

Originally Posted by Vic'89
I think with your 6 speed , 122 MPH sounds like a doable goal.

Vic
Might not have enough rpm for 122. Either way build looks good!
Old 05-13-2015, 02:39 PM
  #29  
cardo0
Le Mans Master
 
cardo0's Avatar
 
Member Since: Oct 2002
Location: Las Vegas - Just stop perpetuating myths please.
Posts: 7,098
Received 373 Likes on 356 Posts

Default

Wish i had a super ram intake. Cant even find a used one for my LT1 camaro. J. Lingenfelter sold off the design to Accel before he got a CARB legal Super Ram for the camaro/firebird LT1's into production. I think its a bolt on improvement for torque. It looked like BBK was making a copy cat Super Ram and sold them for the GEN I sbc engines but nothing for the GEN II motors and now BBK no longer makes them. Dont know what Edelbrock was thinking making a copy of the stock intake.

Oh well congrats on a nice build cypher.
Old 05-14-2015, 10:21 AM
  #30  
cypher85
Instructor
Thread Starter
 
cypher85's Avatar
 
Member Since: Jun 2010
Location: Avon IN
Posts: 245
Received 2 Likes on 2 Posts

Default

Originally Posted by cardo0
Wish i had a super ram intake. Cant even find a used one for my LT1 camaro. J. Lingenfelter sold off the design to Accel before he got a CARB legal Super Ram for the camaro/firebird LT1's into production. I think its a bolt on improvement for torque. It looked like BBK was making a copy cat Super Ram and sold them for the GEN I sbc engines but nothing for the GEN II motors and now BBK no longer makes them. Dont know what Edelbrock was thinking making a copy of the stock intake.

Oh well congrats on a nice build cypher.
Thank you for the congrats

I have heard the LT1 superrams are very rare. Are you unhappy with your LT1?
Old 05-14-2015, 11:10 AM
  #31  
LSWONGTO
Intermediate
 
LSWONGTO's Avatar
 
Member Since: Sep 2008
Location: Pope AAF North Carolina
Posts: 48
Likes: 0
Received 0 Likes on 0 Posts
Default

Congrats man, that much torque has to be a blast You should be out pissing off new 5.0 owners now
Old 05-14-2015, 11:14 AM
  #32  
cypher85
Instructor
Thread Starter
 
cypher85's Avatar
 
Member Since: Jun 2010
Location: Avon IN
Posts: 245
Received 2 Likes on 2 Posts

Default

Originally Posted by LSWONGTO
Congrats man, that much torque has to be a blast You should be out pissing off new 5.0 owners now

Haha! I will when the opportunity arises. I pissed off a new camaro ss owner pretty good the other day.

The torque is intoxicating to say the least.
Old 05-14-2015, 11:57 AM
  #33  
383vett
Race Director
 
383vett's Avatar
 
Member Since: Apr 2003
Location: moraga ca
Posts: 17,570
Received 1,541 Likes on 1,042 Posts

Default

Originally Posted by cardo0
Wish i had a super ram intake. Cant even find a used one for my LT1 camaro. J. Lingenfelter sold off the design to Accel before he got a CARB legal Super Ram for the camaro/firebird LT1's into production. I think its a bolt on improvement for torque. It looked like BBK was making a copy cat Super Ram and sold them for the GEN I sbc engines but nothing for the GEN II motors and now BBK no longer makes them. Dont know what Edelbrock was thinking making a copy of the stock intake.

Oh well congrats on a nice build cypher.
Too bad. I sold my extrude honed SuperRam combination a few months ago that I ran for years with a 383 and a 406. Car ran low 11's with the 383 and 10.50's with the 406.
Old 05-14-2015, 09:55 PM
  #34  
cardo0
Le Mans Master
 
cardo0's Avatar
 
Member Since: Oct 2002
Location: Las Vegas - Just stop perpetuating myths please.
Posts: 7,098
Received 373 Likes on 356 Posts

Default

Originally Posted by cypher85
Thank you for the congrats

I have heard the LT1 superrams are very rare. Are you unhappy with your LT1?
Originally Posted by 383vett
Too bad. I sold my extrude honed SuperRam combination a few months ago that I ran for years with a 383 and a 406. Car ran low 11's with the 383 and 10.50's with the 406.

Well I dont race enough to say im unhappy with the LT1 intake. But it dont take much science to realize the LT1 doesnt have a long enough runner to use it for any tuned length within the LT1 7,000rpm limit for its opti. Im used to old school sbc where there are dozens of fairly cheap intakes to match the engines power range and they just bolt on w/o expensive and complicated mods. Im thinking the happist LT1 owners have converted carburetor single plane intakes with an intake elbow. But u lose the smog certificate with the visual inspection let alone the missing EGR function. Hey i'll also i dare say dual plane conversion for a street driven car. But i see any conversion as $1,000 minimum cost and $/hp it somewhat a loser for a budget build.

Only options left are the TPIS mini ram and the Edelbrock intakes which arent much different than the OEM intakes.

Right now i have a very short cam in my LT1 - the 350 RAM cam #14097395 which is more of an experiment for a LT1 cam swap. I have too much wheel spin now but the LT1 intake short runners with large area/diameter never see power peak before the cam stops breathing. My dyno curve is a rounded downhill slope from 3,000 rpm. I expect a long runner intake would pick up the power near 5000-5500rpm. So yea something like a dual plane or the Super Ram would be a better match. Anyways its a work in progress.
Old 05-16-2015, 05:22 PM
  #35  
cypher85
Instructor
Thread Starter
 
cypher85's Avatar
 
Member Since: Jun 2010
Location: Avon IN
Posts: 245
Received 2 Likes on 2 Posts

Default

Originally Posted by cardo0
Well I dont race enough to say im unhappy with the LT1 intake. But it dont take much science to realize the LT1 doesnt have a long enough runner to use it for any tuned length within the LT1 7,000rpm limit for its opti. Im used to old school sbc where there are dozens of fairly cheap intakes to match the engines power range and they just bolt on w/o expensive and complicated mods. Im thinking the happist LT1 owners have converted carburetor single plane intakes with an intake elbow. But u lose the smog certificate with the visual inspection let alone the missing EGR function. Hey i'll also i dare say dual plane conversion for a street driven car. But i see any conversion as $1,000 minimum cost and $/hp it somewhat a loser for a budget build.

Only options left are the TPIS mini ram and the Edelbrock intakes which arent much different than the OEM intakes.

Right now i have a very short cam in my LT1 - the 350 RAM cam #14097395 which is more of an experiment for a LT1 cam swap. I have too much wheel spin now but the LT1 intake short runners with large area/diameter never see power peak before the cam stops breathing. My dyno curve is a rounded downhill slope from 3,000 rpm. I expect a long runner intake would pick up the power near 5000-5500rpm. So yea something like a dual plane or the Super Ram would be a better match. Anyways its a work in progress.

Have you ever considered the stealth ram? I have heard it pulls well up top while maintaining good torque numbers.
Old 05-16-2015, 11:56 PM
  #36  
cardo0
Le Mans Master
 
cardo0's Avatar
 
Member Since: Oct 2002
Location: Las Vegas - Just stop perpetuating myths please.
Posts: 7,098
Received 373 Likes on 356 Posts

Default

To tall, wont fit under hood. Has to be modified to bolt onto LT1 heads. Stealth Ram is pretty bad azz though and would like to be able to run one.

Ya know with all the plastic/composite intakes now i hope to see something better for the LT1. I see plastic intakes for the LS motors that are assembled with swappable trumpets/internal runners. But the reverse cooled LT1 is a step child chevy and even CARB legal headers in large diameters are gone/dropped from production. Not any money to be made in producing an LT1 intake.

Anyways for the 4th gen camaro w/LT1, Lingenfelter had to cut down the SuperRam height to fit under the cowl and they never saw a CARB number unlike the corvette Super Ram for the LT1. The base of course should be the same for vette and camaro as both need the LT1 head bolt pattern also i expect they dont have a t-stat housing but havent verified that myself. Ive just been keeping a watch for a 4th gen SuperRam but not really looking very hard.
Old 05-18-2015, 10:41 PM
  #37  
dizwiz24
Race Director
 
dizwiz24's Avatar
 
Member Since: Sep 2001
Location: NEwhere Ohio
Posts: 13,345
Received 560 Likes on 437 Posts

Default

Greeat numbers!

I cant tell you how many threads ive read where someone tries to do a l98 383 and ends up making less power than a hotcam/headered stock bot end 350 lt1.

Yours is a total success!

Get notified of new replies

To DYNO RESULTS! 385 Superram

Old 05-19-2015, 06:35 PM
  #38  
cv67
Team Owner
 
cv67's Avatar
 
Member Since: Oct 2004
Location: altered state
Posts: 81,242
Received 3,043 Likes on 2,602 Posts
St. Jude Donor '05

Default

Oustanding #s for what you have

Funny how some combinations that are "wrong" on paper actually run pretty strong. Nice job
Old 07-03-2015, 10:43 PM
  #39  
Masterspykiller
Instructor
 
Masterspykiller's Avatar
 
Member Since: Aug 2004
Location: Thousand Oaks CA
Posts: 108
Likes: 0
Received 1 Like on 1 Post

Default Canton Road Race Oil Pan

Originally Posted by l98tpi
I run the Canton Road Race pan on my 91 and 96. It is called a 7 quart pan. However, of you do get one, you will want to put 6 quarts in the pan and calibrate your dipstick. Then start up the car and finish filling as necessary. I was overfilling at first and kept having to empty my catch can after every event. Finally called Canton and told me the pan just held 6 quarts and they figured another quart in the filter and block.
I am building a torque monster for my wife's 1991 C4. Installed the Canton 15-240T pan a few weeks ago. Before installing it, I measured water into it (had to clean it out anyway) and found 7 quarts flush to the bottom of the insert that screws into the pan to hold the crank scraper/windage screen. I would consider that the "FULL" mark for the pan.

I am NOT an expert, but assuming one adds 7 quarts PLUS the volume of the oil filter (whatever size one uses) and is NOT running an oil cooler, I believe there will be enough oil circulating while the engine is running that the pan will not be overfull. However, I haven't run this engine yet (still waiting for final parts, etc.).

My purpose in running the larger pan (and this is the ONLY larger pan I could find that would fit the 1991 C4) was to help cool the engine and avoid oil starvation during auto-X runs. I am not sure yet if I'll add an oil cooler (damn Los Angeles traffic and summer heat!). If so, of course more oil would be needed to keep those hoses and cooler full without starving the engine.

I hope this information helps!

Cheers, M
Old 07-03-2015, 10:47 PM
  #40  
Masterspykiller
Instructor
 
Masterspykiller's Avatar
 
Member Since: Aug 2004
Location: Thousand Oaks CA
Posts: 108
Likes: 0
Received 1 Like on 1 Post

Default LT1 intakes - try an LT4 intake?

Originally Posted by cardo0
Well I dont race enough to say im unhappy with the LT1 intake...Only options left are the TPIS mini ram and the Edelbrock intakes which arent much different than the OEM intakes.
I don't know much about the LT1/LT4 engines, but I do remember the LT1 intake was improved by the very similar looking LT4 intake. I have no idea "how much" of an improvement it was, but we raced a 383 LT1 engine with a ported LT4 intake on it making about 500 rwhp.

It even passed California smog because the LT4 intake is oem, well, until we put headers on it....

I hope that helps!

Cheers,
M


Quick Reply: DYNO RESULTS! 385 Superram



All times are GMT -4. The time now is 10:22 PM.