Vanning.com logo
Boxdin
Site Navigation


Advertisements
Recent Posts
Good day
by lukester - March 28th 2024 12:26 pm
Crazy mods
by MufflerMan Mike - March 28th 2024 9:38 am
Lew Greger
by MufflerMan Mike - March 27th 2024 5:15 pm
1987 G20 Gypsy
by SDMickey - March 25th 2024 9:39 pm
Featured Links


Previous Thread
Next Thread
Print Thread
Rate Thread
Page 13 of 15 1 2 11 12 13 14 15
Re: 1997 Chevy Express Cobra Conversion
1983 G20 Van #797213 October 17th 2022 4:32 pm
Joined: Mar 2021
Posts: 208
Likes: 35
S
enthusiast
Offline
enthusiast
S
Joined: Mar 2021
Posts: 208
Likes: 35
Oh wow!

AdSense long
Re: 1997 Chevy Express Cobra Conversion
1983 G20 Van #797289 October 19th 2022 8:07 am
Joined: May 2018
Posts: 2,397
Likes: 64
A
veteran
Offline
veteran
A
Joined: May 2018
Posts: 2,397
Likes: 64
Bitchin' intake.


When in doubt..get the sawzall out..
Re: 1997 Chevy Express Cobra Conversion
1983 G20 Van #797353 October 20th 2022 12:19 am
Joined: Jul 2019
Posts: 11,241
Likes: 411
S
Post Junkie
Offline
Post Junkie
S
Joined: Jul 2019
Posts: 11,241
Likes: 411
Ditto !

Re: 1997 Chevy Express Cobra Conversion
1983 G20 Van #797356 October 20th 2022 6:27 am
Joined: Feb 2002
Posts: 32,696
Likes: 172
Old Timer
Offline
Old Timer
Joined: Feb 2002
Posts: 32,696
Likes: 172
Sweet!!!!!!!!


Jim & Lucy Newkirk
1965 Chevy Bad Influence
1981 Chevy-the Love Shack
2012 Chevy Van , 2020 chevy van
2020 Chevy van Sapphire Sweet.
Club Vannerz.
vanninvanner@comcast.net
Re: 1997 Chevy Express Cobra Conversion
1983 G20 Van #801502 February 14th 2023 1:25 am
Joined: Apr 2007
Posts: 249
Likes: 59
1
G Van Man
OP Offline
G Van Man
1
Joined: Apr 2007
Posts: 249
Likes: 59
Been a while since I have posted on here. Have had to do a lot to the van though. I ended up deciding against the manifold above for the van. I own one now, but I will be putting it on my 1980 Camaro instead when I build it. After putting some miles on the van, I realized I did not want to give up the low to midrange grunt it makes now but I wanted to try to let it breathe a little freer and eliminate the leak prone plastic plenum.

My van on the other hand now has a marine intake on it again. When I removed the driverside valve cover to swap the marine intake manifold, I found coolant on the top of a cylinder head. I ended up having to pull both cylinder heads after finding broken Jegs head bolts, 4 in total. I ended up replacing the head bolts with ARP studs. I used Felpro 1003 head gaskets this time around that are thicker but have revised coolant passageways. All back together now and working on finishing tuning it now.

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

Last edited by 1983G20Van; February 14th 2023 1:30 am.
Re: 1997 Chevy Express Cobra Conversion
1983 G20 Van #801503 February 14th 2023 1:37 am
Joined: Apr 2007
Posts: 249
Likes: 59
1
G Van Man
OP Offline
G Van Man
1
Joined: Apr 2007
Posts: 249
Likes: 59
[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

Last edited by 1983G20Van; February 14th 2023 1:39 am.
Re: 1997 Chevy Express Cobra Conversion
1983 G20 Van #801504 February 14th 2023 1:58 am
Joined: Apr 2007
Posts: 249
Likes: 59
1
G Van Man
OP Offline
G Van Man
1
Joined: Apr 2007
Posts: 249
Likes: 59
How it ended up

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

First Startup----Open Headers of course. Mainly because I want to hear it run, before I spend close to an hour fighting header flange bolts. I should have V-band flanged them from day one. With a good bit of tuning, it starts well, has good throttle response cold or hot, I corrected a start and stall issue between 100F and 160F coolant temp that was caused by the programming and a few other things.
https://youtube.com/shorts/w3zBYZp2Tb0?feature=share

Warm Idle
https://youtube.com/shorts/Ajj9aVly6rY?feature=share

Cold Open Loop Lean Stumble or Bog Corrected
https://youtube.com/shorts/NXjqGPX1zZo?feature=share

Warm Closed Loop Lean Bog corrected
https://youtube.com/shorts/X9uqUa7itL0?feature=share

Now for the fun one. ABS light is on because of a defective, nearly new ABS sensor on the LH front wheel. Service Engine Light is because I am tuning the VE tables with the MAF sensor failed in the tuning. I need to see if I can do something about the stepper motor in that speedo too.

https://www.youtube.com/watch?v=mrfrCyXUGKQ

Same acceleration run from the datalogging software in real time, acceleration is smooth despite the speedometer behavior.
https://youtube.com/shorts/f8L8o_MlXAk?feature=share

Last edited by 1983G20Van; February 14th 2023 2:06 am.
1 member likes this: frscke1
Re: 1997 Chevy Express Cobra Conversion
1983 G20 Van #801506 February 14th 2023 2:23 am
Joined: Jun 2010
Posts: 18,286
Likes: 558
Offline
Joined: Jun 2010
Posts: 18,286
Likes: 558
WOW ! ! what nice motor ....


SUNSHINE VANS-VAN DIEGO
ADRENALIN BY THE GALLON & CHASIN RACIN
ONE FOR THE DIRT & ONE FOR THE STREETS
'93 CHEVY G30 454 4X4 SPORTVAN EXT 146" WB
'92 CHEVY G30 454 BEAUVILLE EXT 146" WB
1 member likes this: 1983 G20 Van
Re: 1997 Chevy Express Cobra Conversion
1983 G20 Van #801516 February 14th 2023 11:36 am
Joined: Jul 2019
Posts: 11,241
Likes: 411
S
Post Junkie
Offline
Post Junkie
S
Joined: Jul 2019
Posts: 11,241
Likes: 411
Double wow. Nice work; clean job.

Page 13 of 15 1 2 11 12 13 14 15

Moderated by  Astro 

Link Copied to Clipboard
Donate


Upcoming Events
discovery
Who's Online Now
0 members (), 24 guests, and 6 robots.
Key: Admin, Global Mod, Mod
Newest Members
TheDrunkenGunsmith, Jac, LOVclassics, ZenMuffin, Milkman530
12724 Registered Users
Top Posters (30 Days)
SDMickey 129
CatFish 25
frscke1 25
Wedgy 21
Forum Statistics
Forums68
Topics35,746
Posts537,916
Members12,724
Most Online177
May 8th, 2013

Powered by UBB.threads™ PHP Forum Software 7.7.4