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Search: Posts Made By: Stevolwevol
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Forum: Exhaust
07-28-2019, 09:15 PM
Replies: 127
Views: 17,195
Posted By Stevolwevol

Re: Best diameter Y pipe for 305 tbi

True duels would be the best. It would cost me $450 for duels, and under $300 for performance single exhaust. The first thing that comes to mind is rattles from the pipes running so close together.
Forum: Exhaust
07-28-2019, 07:16 PM
Replies: 127
Views: 17,195
Posted By Stevolwevol

Re: Best diameter Y pipe for 305 tbi

Well, I already ordered the splitter, How did you connect the pipes to the 3"?
Forum: Exhaust
07-28-2019, 03:09 PM
Replies: 127
Views: 17,195
Posted By Stevolwevol

Re: Best diameter Y pipe for 305 tbi

I did the math on the square inch of the exhaust system. If you have 2 1/2" duels all the way back, that would be 39.27 square inches of pipe. With a 3" exhaust pipe it would give you 28.274 square...
Forum: Exhaust
07-27-2019, 07:08 PM
Replies: 127
Views: 17,195
Posted By Stevolwevol

Re: Best diameter Y pipe for 305 tbi

So you believe the chart Noemissions posted was too restrictive for performance exhaust? M concern is; will it fit on a third gen?
Forum: Exhaust
07-27-2019, 06:23 PM
Replies: 127
Views: 17,195
Posted By Stevolwevol

Re: Best diameter Y pipe for 305 tbi

The part that connects the Y pipe to the exhaust pipe is Magnaflow #10778. My exhaust guy will fabricate the rest. It's for 2 1/2" into 3". I am ordering one on Ebay for under $35.00
Forum: Exhaust
07-26-2019, 08:00 PM
Replies: 127
Views: 17,195
Posted By Stevolwevol

Re: Best diameter Y pipe for 305 tbi

So does this imply horsepower gain, or is this adequate for a 5 or 5.7 ? I don't quite understand the chart.
Forum: Exhaust
07-26-2019, 03:00 PM
Replies: 127
Views: 17,195
Posted By Stevolwevol

Re: Best diameter Y pipe for 305 tbi

Yeah you would think Magnaflow would have a mandrel bent replacement, but that's the way it is I guess. Since my last post I called Magnaflow, and they have part number 10778, a Y pipe specific to...
Forum: Exhaust
07-26-2019, 02:28 PM
Replies: 127
Views: 17,195
Posted By Stevolwevol

Re: Best diameter Y pipe for 305 tbi

It's possible he could reconfigure the Y pipe as you explained. What can you tell me about the Y250300? I called Summit and they told me it's a universal, and the tech didn't know If it would fit...
Forum: Exhaust
07-26-2019, 12:00 PM
Replies: 127
Views: 17,195
Posted By Stevolwevol

Re: Best diameter Y pipe for 305 tbi

I'm keeping my stock manifolds for now. My exhaust guy said he can't do much with the angle of the Y pipe forming a T. I would need the Summit Y250300, or something similar. I don't know if the...
Forum: Exhaust
07-26-2019, 11:03 AM
Replies: 127
Views: 17,195
Posted By Stevolwevol

Re: Best diameter Y pipe for 305 tbi

OK, here's where I'm at: I believe Chazman stated , the Y pipe on the L69, LB9, and the L98 was a 3" diameter. So, for my L03 I should go with a 3" Y pipe, or a 2 1/2" Y pipe into 3" exhaust? I just...
Forum: TBI
07-19-2019, 05:27 PM
Replies: 3
Views: 2,465
Posted By Stevolwevol

Re: Trouble starting when cold 305 TBI

I replaced the cts, and the starting issue is gone. Funny thing is I replaced it this early spring, so I put the old one back in and it works. still having trouble with temporarily stumbling after...
Forum: Exhaust
07-19-2019, 01:59 PM
Replies: 127
Views: 17,195
Posted By Stevolwevol

Re: Best diameter Y pipe for 305 tbi

Yes, I have the 273's in mine. Very long legs. Did you change the shift ratio?
Forum: Exhaust
07-19-2019, 01:32 PM
Replies: 127
Views: 17,195
Posted By Stevolwevol

Re: Best diameter Y pipe for 305 tbi

Well, it looks great, maybe you could talk to it with a wrist band :-) I would like 3.42's and a higher stall.
Forum: Exhaust
07-19-2019, 11:01 AM
Replies: 127
Views: 17,195
Posted By Stevolwevol

Re: Best diameter Y pipe for 305 tbi

I understand what you mean. I've never considered my 92 as a numbers matching correct type of car, although it is in excellent condition.
Forum: Exhaust
07-19-2019, 10:45 AM
Replies: 127
Views: 17,195
Posted By Stevolwevol

Re: Best diameter Y pipe for 305 tbi

Ok, that's good for the moment. I was considering ceramic coated 1 5/8" shorties if I were going to replace the stock manifolds. I've had good luck with headers on sbc engines in the past. Easy to...
Forum: Exhaust
07-19-2019, 10:10 AM
Replies: 127
Views: 17,195
Posted By Stevolwevol

Re: Best diameter Y pipe for 305 tbi

Bring me up to speed please. That spacer is for the HO manifold? I am going to have a Y pipe on back fabricated next week for my L03, but I don't want to run into a no parts available issue.
Forum: TBI
07-18-2019, 07:20 PM
Replies: 3
Views: 2,465
Posted By Stevolwevol

Trouble starting when cold 305 TBI

The last couple of times I have had trouble with cold start. It will start with the familiar rev, but it doesn't stay running. The only way I am able to start it is to hold the throttle down like...
Forum: Exhaust
07-13-2019, 08:55 PM
Replies: 127
Views: 17,195
Posted By Stevolwevol

Re: Best diameter Y pipe for 305 tbi

I am going to my exhaust guy this week, and ask him if the magnaflow which I like, and is on the car can be used with a 3" pipe. I want to stay with the 2 1/2 duel outlets.
Forum: Exhaust
07-13-2019, 07:06 PM
Replies: 127
Views: 17,195
Posted By Stevolwevol

Re: Best diameter Y pipe for 305 tbi

SLP meaning "street legal performance"? What type of muffler did you use?
Forum: Exhaust
07-13-2019, 02:13 PM
Replies: 127
Views: 17,195
Posted By Stevolwevol

Re: Best diameter Y pipe for 305 tbi

Here is a link I found. According to this the 2 1/2 Y pipe into a 3" will give about 15 hp to a L03
http://tbichips.com/?page_id=22
Forum: Tech / General Engine
07-12-2019, 01:35 PM
Replies: 4
Views: 1,565
Posted By Stevolwevol

Re: Stumble when warming up and driving

Just to let you know, one if the as wires coming off the IAC pigtail was against the EGR. It was burnt with wire exposed. The issue comes and goes, but it hasn't stumbled yet. Maybe this was...
Forum: Exhaust
07-11-2019, 09:41 PM
Replies: 127
Views: 17,195
Posted By Stevolwevol

Re: Best diameter Y pipe for 305 tbi

Yes, the guy that makes exhaust mandrel bends everything, very professional, and will do it without a cat. I just need better manifolds. I also have all those AIR tubes to reinstall, or delete.
Forum: Exhaust
07-11-2019, 01:25 PM
Replies: 127
Views: 17,195
Posted By Stevolwevol

Re: Best diameter Y pipe for 305 tbi

I have an exhaust man that will fabricate a y pipe, and a three inch single pipe all the way back for under 300 dollars. The question is; with a 2" manifold, will it help??
Forum: Exhaust
07-10-2019, 05:23 PM
Replies: 127
Views: 17,195
Posted By Stevolwevol

Re: Best diameter Y pipe for 305 tbi

Well, I put long tube headers on my Vette, and they fit like a charm. Made it easier to get to the spark plugs, and I used good gaskets. All you need to do is re torque a couple of times, and your...
Forum: Electronics
07-08-2019, 07:56 AM
Replies: 10
Views: 2,768
Posted By Stevolwevol

Re: hatch pull down motor quit working

I read both jprformula, and Ionsal, as carefully as I could. Is there a way I could cut the power to the pull down motor, and operate the hatch release with the consul switch?
Forum: Exhaust
07-06-2019, 06:10 PM
Replies: 127
Views: 17,195
Posted By Stevolwevol

Re: Best diameter Y pipe for 305 tbi

Yes Chazman, but would I benefit with a better Y pipe using the existing manifolds?
Forum: Exhaust
07-06-2019, 04:59 PM
Replies: 127
Views: 17,195
Posted By Stevolwevol

Re: Best diameter Y pipe for 305 tbi

Alright chazman, I'm sure my l03 has a 2" diameter. I would like to know If I would benefit from a larger, better designed y pipe with the restrictive manifold that's on the engine.
Forum: Exhaust
07-06-2019, 03:55 PM
Replies: 127
Views: 17,195
Posted By Stevolwevol

Re: Best diameter Y pipe for 305 tbi

What engine were the 2 1/4 from? Do they dump in the same place the previous ones did?
Forum: Exhaust
07-06-2019, 09:06 AM
Replies: 127
Views: 17,195
Posted By Stevolwevol

Re: Best diameter Y pipe for 305 tbi

Good question. I am in the process of calling the company, they are open 7 days. I'll see what they say if I can get a technician who knows the answers
Forum: Exhaust
07-05-2019, 10:26 PM
Replies: 127
Views: 17,195
Posted By Stevolwevol

Re: Best diameter Y pipe for 305 tbi

Yes, T pipe is a more accurate discription, and I believe it's 2", and the Mac is 2 1/2". This is a bolt on and go, or does it need fitment? From the Y on back I figure 3" is what is recommended. ...
Forum: Exhaust
07-05-2019, 08:09 PM
Replies: 127
Views: 17,195
Posted By Stevolwevol

Best diameter Y pipe for 305 tbi

I am considering replacing the exhaust on my tbi Camaro from the manifolds back to help it breath better. I would like to know if I would benefit from increasing the diameter of the Y pipe, and...
Forum: Electronics
07-05-2019, 03:08 PM
Replies: 10
Views: 2,768
Posted By Stevolwevol

Re: hatch pull down motor quit working

Thank you for your response. There are two harnesses that connect to the unit. I've tried unplugging one, and leaving the other plugged in, and vise versa, but the it won't pop by using the switch. ...
Forum: Electronics
06-20-2019, 06:31 PM
Replies: 10
Views: 2,768
Posted By Stevolwevol

hatch pull down motor quit working

My pull down motor quit working properly, I can make it move when I push the button on the console, so I feathered the switch till the hatch is all the way down. I disconnected the fuse so the...
Forum: Tech / General Engine
06-16-2019, 05:49 PM
Replies: 4
Views: 1,565
Posted By Stevolwevol

Re: Stumble when warming up and driving

I'll give it a shot: When I am driving, and the engine is warming up it will hesitate, run right briefly, then hesitate, then it clears up about when I go into closed loop. I have almost determined...
Forum: Tech / General Engine
06-15-2019, 06:55 PM
Replies: 4
Views: 1,565
Posted By Stevolwevol

Stumble when warming up and driving

My engine is a 305 TBI 92 RS. I've been getting a "stumble" while warming up, and when I'm driving. It seems to occur when it is raining, or just rained. I've replaced every sensor under the sun...
Forum: TBI
05-25-2019, 06:14 PM
Replies: 8
Views: 2,892
Posted By Stevolwevol

Re: 305 tho runs great cold, rough idle, sometimes dies when warm

I had a similar problem, and it was the o2 sensor, but no code. When was the last time you replaced it? They gunk up with carbon over time.
Forum: TBI
03-26-2019, 07:08 PM
Replies: 9
Views: 562
Posted By Stevolwevol

Re: IAC plug is missing plastic

I see. I didn't know that this could be done.
Forum: TBI
03-26-2019, 09:45 AM
Replies: 9
Views: 562
Posted By Stevolwevol

Re: IAC plug is missing plastic

Are you telling me to leave it as it is, and not replace the plug?
Forum: TBI
03-25-2019, 09:02 PM
Replies: 9
Views: 562
Posted By Stevolwevol

Re: IAC plug is missing plastic

The rubber seal is good, but the latch tab is broken off. I just ordered a new pigtail on ebay.
Forum: TBI
03-25-2019, 05:51 PM
Replies: 9
Views: 562
Posted By Stevolwevol

Re: IAC plug is missing plastic

My question is does the plastic around the prongs have a function as far as getting a connection?
Forum: TBI
03-23-2019, 06:26 PM
Replies: 9
Views: 562
Posted By Stevolwevol

IAC plug is missing plastic

My IAC plug is missing plastic where it connects to the IAC. It doesn't doesn't appear to be a problem as far as getting a connection, bit once in a while I get a surge at idle. It comes out of no...
Forum: Tech / General Engine
05-10-2018, 07:01 AM
Replies: 13
Views: 8,487
Posted By Stevolwevol

Re: L69 dual snorkel flex hoses??

WoW this is an old thread, but old threads to me are still relevant. I really don't think I knew what year the truck I got them, but probably from late 80's or early 90's off of a L05 engine. It...
Forum: Tech / General Engine
04-19-2018, 04:17 PM
Replies: 4
Views: 404
Posted By Stevolwevol

Re: Overheating

Get a third gen Camaro, or a Firebird pal.
Forum: History / Originality
03-29-2018, 05:16 PM
Replies: 57
Views: 8,650
Posted By Stevolwevol

Re: Best Repro Hood Liner?

It just doesn't seem to have a function besides being a fire blanket. Looks good also.
Forum: History / Originality
03-29-2018, 01:25 PM
Replies: 57
Views: 8,650
Posted By Stevolwevol

Re: Best Repro Hood Liner?

Have you considered going without? I did on my IROC.
Forum: Tech / General Engine
03-18-2018, 04:07 PM
Replies: 14
Views: 1,791
Posted By Stevolwevol

Re: Why Are Open Element Air Cleaners a Challenge to Install on a Thirdgen?

Another option is to cut the stock air cleaner down to the base, removing everything below the snorkel. Grind it clean, smooth, and even, and presto, you have an open element air cleaner that fits. ...
Forum: TBI
10-21-2017, 07:25 PM
Replies: 9
Views: 513
Posted By Stevolwevol

Re: Possible Vacuum Lines Missing???

I have the same hissing sound with my tbi since I've had an open element air cleaner. Sounds a little alarming, but it's ok, and it runs very well.
Forum: TBI
10-06-2017, 04:27 PM
Replies: 13
Views: 1,164
Posted By Stevolwevol

Re: Defective IAC ?

I've replaced about every sensor known to man on my third gens, and they are all plug n play, at least as far as I know. I didn't look at the how tos, cause it just didn't occur to me. I mean who...
Forum: TBI
10-06-2017, 12:00 PM
Replies: 13
Views: 1,164
Posted By Stevolwevol

Re: Defective IAC ?

Geez, I should have checked this out. No my parts guy is walking funny, and it's all my fault. :-)
Forum: TBI
10-05-2017, 03:34 PM
Replies: 13
Views: 1,164
Posted By Stevolwevol

Re: Defective IAC ?

No, I just put it in like I've done before.
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