, 84-85°F temp, pretty humid, no correction factor
Lowest dyno bolt-on car
TECH Senior Member
Joined: Nov 2001
Posts: 9,246
Likes: 3
From: Troy, AL
My '00 dynoed 316 RWHP converter unlocked and 326 RWHP converter locked on MTI's Dynojet when it was internally stock....and it ran 11.56 at 115.8 MPH in the 1/4 NA! So much for dyno racing! 
I got one for you:
'99 Z28 M6 Hardtop
Lid, K&N and Loudmouth
287 RWHP 312 RWTQ
.....needless to say, I was beside myself
....in looking at the graph the tech was guessing bent push rods. Took it apart right there at the shop and found 3 bent rods (2 bad 1 just a little). Slipped in 3 new ones, drove it around the block, came back and dynoed again.
324 RWHP 334 RWTQ
'99 Z28 M6 Hardtop
Lid, K&N and Loudmouth
287 RWHP 312 RWTQ
.....needless to say, I was beside myself
....in looking at the graph the tech was guessing bent push rods. Took it apart right there at the shop and found 3 bent rods (2 bad 1 just a little). Slipped in 3 new ones, drove it around the block, came back and dynoed again.
324 RWHP 334 RWTQ
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Originally Posted by TheBowtieboy
I got one for you:
'99 Z28 M6 Hardtop
Lid, K&N and Loudmouth
287 RWHP 312 RWTQ
.....needless to say, I was beside myself
....in looking at the graph the tech was guessing bent push rods. Took it apart right there at the shop and found 3 bent rods (2 bad 1 just a little). Slipped in 3 new ones, drove it around the block, came back and dynoed again.
324 RWHP 334 RWTQ
'99 Z28 M6 Hardtop
Lid, K&N and Loudmouth
287 RWHP 312 RWTQ
.....needless to say, I was beside myself
....in looking at the graph the tech was guessing bent push rods. Took it apart right there at the shop and found 3 bent rods (2 bad 1 just a little). Slipped in 3 new ones, drove it around the block, came back and dynoed again.
324 RWHP 334 RWTQ
think u did the damage or bought it like that?
sad u coulda still owned most street cars with bent pushrods huh
Dave when you have a ported TB, fresh plugs, ls6, jethots, open cutout, pulleyand it dynoes less 345-350, then you have a problem... start looking at oil consumption, throw some 7.375 length hardened pushrods in it and springs (youll be set to go with a cam later) and ill bet it makes 355+
Thread Starter
11 Second Club
Joined: Feb 2002
Posts: 955
Likes: 4
From: Silver Spring, Md.
Originally Posted by GrannySShifting
Dave when you have a ported TB, fresh plugs, ls6, jethots, open cutout, pulleyand it dynoes less 345-350, then you have a problem... start looking at oil consumption, throw some 7.375 length hardened pushrods in it and springs (youll be set to go with a cam later) and ill bet it makes 355+
. My springs do have 125k on them but how much can that hurt? tons valvetrain control becomes more important the more rpm you turn. .030 tweak of a pushrod will kill a motor, stresses compound as the square of the rpm rise
If your planning on doing the cam anyway, throw some pushrods and springs in it and see if it helps before doing the cam. Only take 2 hours. after that the cam is only 2 hours away
If your planning on doing the cam anyway, throw some pushrods and springs in it and see if it helps before doing the cam. Only take 2 hours. after that the cam is only 2 hours away
Originally Posted by hugger1975
ouch.
think u did the damage or bought it like that?
sad u coulda still owned most street cars with bent pushrods huh
think u did the damage or bought it like that?
sad u coulda still owned most street cars with bent pushrods huh
In driving it, you couldn't really tell - except in the higher RPM's, it felt a little flat. I knew something was wrong when I got into a "spirited run" with one of my friends, and he started walking away from me (not that he was a bad driver, just that you could definity tell something was wrong - he even thought that I was shifting at 5500 RPM's)......that's what led me to have it dynoed.
.....glad it was just the push rods !
12 Second Club
Joined: Mar 2004
Posts: 199
Likes: 0
From: Columbus
I'm in process of building my new motor. My old motor with 2 cylinders having low compression dyno'd 322hp/338tq(with a steel DS,9inch,315/35r17 BFG's) and ran 109.5 with just a lid and borla before the motor lost compression.
On The Tree
Joined: Jul 2002
Posts: 160
Likes: 0
From: Wharton, Tx
My a4 99 bone stock, dirty paper filter did 283rwhp/297rwtq. 82 deg day at 104,000 miles. I had done the fra mod b4 the dyno and just put on a GMMG cat-back @ 500 miles ago. I'm at 112,000 miles now, and as soon as I get back from Taiwan, I'm going back to have it re-dynoed to see what if any gains I have with the cat-back. Heck, I might even change the plugs and wires first.
Teching In
Joined: Mar 2005
Posts: 27
Likes: 0
My 2000 A4 with 70K dynoed at 288/312 with FRA, lid , egr removal and K&N when I recently changed the plugs #8 had virtually no gap, I thought it had a rough idle, idle is smooth now and have added smooth bellows and cut out, will dyno to see if #'s improve, if they don't am I to assume there is something wrong with the motor? I actually thought 288HP on a 70K mile auto LS1 was "decent"
deucetorres@gmail.com
deucetorres@gmail.com
