so i finally started the swap...

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Feb 16, 2008 | 07:45 AM

#41

andylmusic76

Thread Starter

Burning Brakes

Joined: Sep 2005

Posts: 832

Likes: 0

From: Sarasota Florida

Quote:

Originally Posted by Matt Gruber

well, i kind of like tire squeal off the line, so if my xe262 (218/224) ever wipes, i may try the summit 214/224. the 224/234 u have is a bit low on stoplight tq as u report. But that means less tickets for u, important for a guy 18.

it'll squeal off the line with no problem! what i mean is that it won't go out of control. now see i have my stock torque converter in my th350, so if i would bump it up to maybe a 1800-2000 stall i will tell a great difference.

btw what is the "stock" converter for a th350? something like 1100 stall?!?

Feb 16, 2008 | 08:17 AM

#42

Matt Gruber

Race Director

Joined: Oct 2000

Posts: 15,068

Likes: 79

From: central FL, near the beach.

GM specs for my 72 th400 say 2110,
and that's where my tach jumps to
Maybe someone with the GM restoration package will chime in for yours.
Where does the dyno graph show the torque band?
like from what min/max rpm does it stay above 300tq

Feb 16, 2008 | 11:13 PM

#43

andylmusic76

Thread Starter

Burning Brakes

Joined: Sep 2005

Posts: 832

Likes: 0

From: Sarasota Florida

Quote:

Originally Posted by Matt Gruber

it reaches 300 ft. lbs of torque at about 3200 rpms, and it goes as high as 340. it goes right back to 300 at about 5300 rpms

Feb 17, 2008 | 07:00 AM

#44

Matt Gruber

Race Director

Joined: Oct 2000

Posts: 15,068

Likes: 79

From: central FL, near the beach.

Quote:

Originally Posted by andylmusic76

it reaches 300 ft. lbs of torque at about 3200 rpms, and it goes as high as 340. it goes right back to 300 at about 5300 rpms

so where does it shift in Drive, floored?
5000?
job isn't done until u raise the governor rpm!

Feb 17, 2008 | 07:41 AM

#45

andylmusic76

Thread Starter

Burning Brakes

Joined: Sep 2005

Posts: 832

Likes: 0

From: Sarasota Florida

Quote:

Originally Posted by Matt Gruber

so where does it shift in Drive, floored?
5000?
job isn't done until u raise the governor rpm!

idk...it maybe shifts at 3,300 or so...it what it always was. are you talking about the governer for the distributor or for the transmission? i set the governor in my distributor to top out at about 6700 rpms.

as for right now, i just kick it down manually into second and shift at about 5,000. but i'll tell ya, it sure doesn't take long to get there! lol

Feb 17, 2008 | 08:10 AM

#46

Matt Gruber

Race Director

Joined: Oct 2000

Posts: 15,068

Likes: 79

From: central FL, near the beach.

3300

r u sure the tv cable is adjusted?
th350 is quite different from th400, but, read my article
http://community.webtv.net/MATTGRU/TH400

Last edited by Matt Gruber; Feb 17, 2008 at 08:15 AM.

Feb 17, 2008 | 08:32 AM

#47

jboweriii

Racer

Joined: Oct 2007

Posts: 327

Likes: 1

i got around 20 hp

Quote:

Originally Posted by Durango_boy

Hmm. Roller lifters get you an HP increase but I never have heard of that kind of an increase from roller rockers. I may do a little bit of asking around.

it might have to do with other parts of the engine ( i had a 427 bored 30 over, 520 lift cam, polished and gasket matched heads, 850 edlebrock, msd 6a, performer rpm intake , hooker super comp headers, and harland sharpe roller rockers ). the only true way to tell is run 2 dyno's with and without.

Feb 17, 2008 | 12:39 PM

#48

andylmusic76

Thread Starter

Burning Brakes

Joined: Sep 2005

Posts: 832

Likes: 0

From: Sarasota Florida

Quote:

Originally Posted by Matt Gruber

3300

r u sure the tv cable is adjusted?
th350 is quite different from th400, but, read my article
http://community.webtv.net/MATTGRU/TH400

sorry i meant 4,300

is there a way to raise it higher?

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Feb 17, 2008 | 04:29 PM

#49

Matt Gruber

Race Director

Joined: Oct 2000

Posts: 15,068

Likes: 79

From: central FL, near the beach.

Quote:

Originally Posted by Matt Gruber

job isn't done until u raise the governor rpm!

i-pod too loud? make it hard to read?

Feb 18, 2008 | 11:59 AM

#50

andylmusic76

Thread Starter

Burning Brakes

Joined: Sep 2005

Posts: 832

Likes: 0

From: Sarasota Florida

Quote:

Originally Posted by Matt Gruber

i-pod too loud? make it hard to read?

actually when i'm at the computer i just play everything in my iTunes library rather than the iPod!!

i'm just not too excited about cutting a hole in the hump as it won't be before long until i install another trans (either a 2004r or some manual) in the car...i'm also getting another car in a month or so for college, so i'll just drive my vette on weekends. i can always shift manually though when i wanna be wild.

Feb 18, 2008 | 03:29 PM

#51

andylmusic76

Thread Starter

Burning Brakes

Joined: Sep 2005

Posts: 832

Likes: 0

From: Sarasota Florida

Quote:

Originally Posted by andylmusic76

sorry i meant 4,300

is there a way to raise it higher?

i took it out today...it shifts at exactly 4,500 rpms. it's dead on...i'm guessing that's what it was stock for a turbo 350

Feb 18, 2008 | 11:58 PM

#52

1981Z06Vette

Pro

Joined: Nov 2007

Posts: 741

Likes: 1

From: Woodstock GA

Quote:

Originally Posted by Durango_boy

Who told you that?

Maybe with a ratio change, but even then its VERY doubtful. If you add up manufacturer's HP claims, we'd all have 1000 hp engines! Its what F-body guys call "Ricer math".

Feb 19, 2008 | 07:04 AM

#53

andylmusic76

Thread Starter

Burning Brakes

Joined: Sep 2005

Posts: 832

Likes: 0

From: Sarasota Florida

Quote:

Originally Posted by 1981Z06Vette

Maybe with a ratio change, but even then its VERY doubtful. If you add up manufacturer's HP claims, we'd all have 1000 hp engines! Its what F-body guys call "Ricer math".

i replaced the heads (maybe 40 hp increase), cyclone manifold (had performer, it's a clone), same cam, added block huggers (maybe 10 hp?), got 75 more hp from dyno tuning, plus roller rockers (whatever it is). anyway, i gained almost 100 rwhp, so figuring all these things, i'm guessing the rockers gave me atleast 15-20 hp. i don't know...maybe more.

but see part of my lack of hp before the buld was also because it wasn't tuned correctly...it was on the the most part, but a few more hp could have been produced from that engine.

Feb 19, 2008 | 08:16 AM

#54

Matt Gruber

Race Director

Joined: Oct 2000

Posts: 15,068

Likes: 79

From: central FL, near the beach.

Quote:

Originally Posted by andylmusic76

i took it out today...it shifts at exactly 4,500 rpms. it's dead on...i'm guessing that's what it was stock for a turbo 350

sure was easy to go up to 4500 from 3300.

the th350 governor is in a different location than a th400. i dont have 1 to look at

Hint: do a search, or crawl under when u get bored.
did u set the tv cable?
1. open clip
2. hold throtle 100% wide open(could try ~75% to "fool it")
3. close clip
4. test drive

Last edited by Matt Gruber; Feb 19, 2008 at 08:29 AM.

Feb 19, 2008 | 10:23 AM

#55

andylmusic76

Thread Starter

Burning Brakes

Joined: Sep 2005

Posts: 832

Likes: 0

From: Sarasota Florida

Quote:

Originally Posted by Matt Gruber

sure was easy to go up to 4500 from 3300.

the th350 governor is in a different location than a th400. i dont have 1 to look at

Hint: do a search, or crawl under when u get bored.
did u set the tv cable?
1. open clip
2. hold throtle 100% wide open(could try ~75% to "fool it")
3. close clip
4. test drive

i'll take a look at it once i have the time. like i said i may just deal with it for a while until i replace the transmission. but i'll try it though.
thanks a lot!

Feb 19, 2008 | 10:04 PM

#56

ricko68

2nd Gear

Joined: Feb 2008

Posts: 2

Likes: 0

ricko68

looks interesting and similar. what exhaust system are you using?

Feb 20, 2008 | 09:31 AM

#57

andylmusic76

Thread Starter

Burning Brakes

Joined: Sep 2005

Posts: 832

Likes: 0

From: Sarasota Florida

Quote:

Originally Posted by ricko68

looks interesting and similar. what exhaust system are you using?

i'm just using patriot lakeside sidepipes. i bought CFR Racing (?) block huggers on ebay, so the pipes are attached to those. sounds great!!

i'll get some pics of the finished engine bay today hopefully, if not then tomorrow morning.