TPIS vs Stainless Works LT's [Forums - C4 Technical]

C4 Technical > TPIS vs Stainless Works LT's	« 1 (2)
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Steve40th	Re: TPIS vs Stainless Works LT's	#51
Elite Guru 1114 Posts Member since: 2005/12/20 0:00	Quote: Weavsvet wrote: Quote: Steve40th wrote: Are you sure the tune has the O2's after the cat tuned out? Positive. Tech1 shows fixed mv values no activity at all. I guess, without being there, is I would do a hand over hand check on the O2 wiring. if it checks out, swap the left/right bank O2s to see if the problem moves. If it does, replace the O2. Remember, our wiring is brittle, over 15 years old.
	Posted on: 2010/7/10 18:34
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Weavsvet	Re: TPIS vs Stainless Works LT's	#52
Senior Guru 446 Posts Member since: 2008/9/16 9:08	I believe it might have been something in the tune. I uploaded a different cal file Solomon had sent me for tonight and so far so good. We'll see. This might have been a lot of the problem all along. He mentioned something a while back about 02 voltage maybe he changed something.
	Posted on: 2010/7/10 19:33
	_________________ 1996 Corvette Coupe,AFR 195 street Eliminators,Edelbrock LT4 Air Gap intake manifold,9.5" 2800 stall,TPIS LT headers,Bullet 226/230.565.565/111 lsa cam,1.7 Scorpion rr's,EWP, X Pipe, Stock Exhaust,Elec.Cutouts,Dana 44/3.45, Tune by Wester's Garage
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Weavsvet	Re: TPIS vs Stainless Works LT's	#53
Senior Guru 446 Posts Member since: 2008/9/16 9:08	I'm thinking maybe my car liked the SW better. Went to the T&T and this is all I could get out of the thing. Not very much in my opinion for what I've done to it. I'm thinking about changing out this cam. It was recommended by LE for his LE 2 package and it might not be suited for these heads. I tried different tunes tonight with only the WOT AFR changed. It seemed to like the 13.0 the best. However, it threw a light coming home with that tune in there. No light on the way down with the 12.8 in there. I got three data logs so maybe tuner can find something there. I'm just beat up tired and not even interested right now. Here's the slips. I'm car #80. DA was 2300' Corrected my best would be 12.2 @ 111.00 +/-
	Posted on: 2010/7/11 2:17
	_________________ 1996 Corvette Coupe,AFR 195 street Eliminators,Edelbrock LT4 Air Gap intake manifold,9.5" 2800 stall,TPIS LT headers,Bullet 226/230.565.565/111 lsa cam,1.7 Scorpion rr's,EWP, X Pipe, Stock Exhaust,Elec.Cutouts,Dana 44/3.45, Tune by Wester's Garage
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pianoguy	Re: TPIS vs Stainless Works LT's	#54
Guru Emeritus Apple Valley, MN 14762 Posts Member since: 2007/12/29 0:00	It never ends, does it? ;-)
	Posted on: 2010/7/11 3:22
	_________________ 1996 LT4 �Before you criticize someone, you should walk a mile in their shoes. That way when you criticize them, you are a mile away from them and you have their shoes.�- Jack Handey
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Steve40th	Re: TPIS vs Stainless Works LT's	#55
Elite Guru 1114 Posts Member since: 2005/12/20 0:00	Hmm, I dont think your times are all that bad. In drag racing sometimes you need to take things with a grain of salt. Technique is critical to getting good times. Tires at 20-24 psi, as you run MT drag radials? when staging, slowly bring first light on. STOP Then creep ever so slowly to trip second light STOP. Then, I left foot brake, hold rpms to 1100sh, then when second when the second to last light starts to light up, I floor it and see what happens and let the trans shift into second, and I manually shift into third, 62-6400rpm. Supposed to shift 10% above maximum torque (Dad told me that years ago) Also, alignment. 0-1 positive camber, 0 toe in rear. Disconnect front sway bar, not remove it, just disconnect at links. Front tires at maximum pressure. Other than that, do a good burn out, but not a smoke show.
	Posted on: 2010/7/11 3:50
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Weavsvet	Re: TPIS vs Stainless Works LT's	#56
Senior Guru 446 Posts Member since: 2008/9/16 9:08	Quote: Steve40th wrote: Hmm, I dont think your times are all that bad. In drag racing sometimes you need to take things with a grain of salt. Technique is critical to getting good times. Tires at 20-24 psi, as you run MT drag radials? when staging, slowly bring first light on. STOP Then creep ever so slowly to trip second light STOP. Then, I left foot brake, hold rpms to 1100sh, then when second when the second to last light starts to light up, I floor it and see what happens and let the trans shift into second, and I manually shift into third, 62-6400rpm. Supposed to shift 10% above maximum torque (Dad told me that years ago) Also, alignment. 0-1 positive camber, 0 toe in rear. Disconnect front sway bar, not remove it, just disconnect at links. Front tires at maximum pressure. Other than that, do a good burn out, but not a smoke show. Most of this is how I did it Steve. I didn't disconnect the sway bar this time though. The M/T seem to like 17-18 psi better than anything over 20. The code was PO131. Bank 1 Sensor 1 02 circuit low. It's like it's jumping from one side of the motor to the other. I can't believe I'm having all of these 02 issues. I never had 02 issues before this header swap. I drove to the track (20 miles) and ran two times without a code. I put that 13.0 tune in there and run one time and the minute I left the track the SES light pops up. Adjusted rwhp is about 370 according to my times. I guess that's probably about right for a heads/cam swap on a LT1. Times are in line with that. I expect to much I guess.
	Posted on: 2010/7/11 8:29
	_________________ 1996 Corvette Coupe,AFR 195 street Eliminators,Edelbrock LT4 Air Gap intake manifold,9.5" 2800 stall,TPIS LT headers,Bullet 226/230.565.565/111 lsa cam,1.7 Scorpion rr's,EWP, X Pipe, Stock Exhaust,Elec.Cutouts,Dana 44/3.45, Tune by Wester's Garage
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flyboy	Re: TPIS vs Stainless Works LT's	#57
Elite Guru Westmont, Il. 2632 Posts Member since: 2008/9/28 12:47	Impressive! With your persistence, I'm sure you will get it sorted out to your satisfaction. I like the fact that you are putting your work "on the line" on the dyno and at the track and showing the paper to prove it. Not just bench racing.
	Posted on: 2010/7/11 12:35
	_________________ '91coupe, LT4Hotcam, some other stuff. If it's too loud, you're too old. "He works on old cars, then junks 'em"
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Weavsvet	Re: TPIS vs Stainless Works LT's	#58
Senior Guru 446 Posts Member since: 2008/9/16 9:08	Quote: flyboy wrote: Impressive! With your persistence, I'm sure you will get it sorted out to your satisfaction. I like the fact that you are putting your work "on the line" on the dyno and at the track and showing the paper to prove it. Not just bench racing. Thanks Joe! I am persistent that is for sure. This thread is supposed to be about a header comparison so I'm going to take it to the dyno next weekend like I said I'd do and see what if anything changes. I've cluttered it up with 02 issues and that's not good. Then for shits and giggles I think I'll change out the intakes just to see what that will do if anything. Shouldn't cost anything but a couple hrs time and a gasket. Basically I'm at the end of my mods with this motor until I go into the bottom end. Unless it breaks that won't be anytime in the near future. I'll probably go to a 383 but I've got to find a combination that is a proven street/strip motor. Not a sets of heads and a cam like I have now.....
	Posted on: 2010/7/11 13:51
	_________________ 1996 Corvette Coupe,AFR 195 street Eliminators,Edelbrock LT4 Air Gap intake manifold,9.5" 2800 stall,TPIS LT headers,Bullet 226/230.565.565/111 lsa cam,1.7 Scorpion rr's,EWP, X Pipe, Stock Exhaust,Elec.Cutouts,Dana 44/3.45, Tune by Wester's Garage
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Stl94LT1	Re: TPIS vs Stainless Works LT's	#59
Guru Newb 128 Posts Member since: 2007/12/29 0:00	WOW, you never give up in the quest for more power and better ET's. I'm betting the ported LT1 intake will help a little with a power increase. Instead of a camshaft change why not change the rockers to 1.7's and get the lift around 600. With the heads you are running the extra lift should be extra HP without driveability issues. Here I am again trying to spend your money. A few years ago I got to the point where I felt my stock shortblock was just about maxed out and my quest ended.
	Posted on: 2010/7/11 14:19
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flyboy	Re: TPIS vs Stainless Works LT's	#60
Elite Guru Westmont, Il. 2632 Posts Member since: 2008/9/28 12:47	Quote: Weavsvet wrote: [quote] Basically I'm at the end of my mods with this motor until I go into the bottom end. Unless it breaks that won't be anytime in the near future. I'll probably go to a 383 but I've got to find a combination that is a proven street/strip motor. Not a sets of heads and a cam like I have now..... Wow, that sounds familiar.
	Posted on: 2010/7/11 14:37

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Weavsvet	Re: TPIS vs Stainless Works LT's	#61
Senior Guru 446 Posts Member since: 2008/9/16 9:08	Quote: Stl94LT1 wrote: WOW, you never give up in the quest for more power and better ET's. I'm betting the ported LT1 intake will help a little with a power increase. Instead of a camshaft change why not change the rockers to 1.7's and get the lift around 600. With the heads you are running the extra lift should be extra HP without driveability issues. Here I am again trying to spend your money. A few years ago I got to the point where I felt my stock shortblock was just about maxed out and my quest ended. I enjoy it Mike I guess that is why I never give up. I'm one of those that will fight for that last little bit of hp. I'm probably nuts anyway though. I've thought about the 1.7's and I still haven't totally discarded that idea. Also, I'm still considering advancing this cam. I know that won't increase power but it will I think put it in a more workable rpm range. Everyone says the AFR's make their power up top and I think that is the case here with my car. If I could lower the power band 500 rpm I'd feel a lot better. Maybe when it cools down this fall I can tackle this. You just keep suggesting. I really appreciate any and all suggestions! I'm beginning to get the same feelings about my short block.......
	Posted on: 2010/7/11 14:48
	_________________ 1996 Corvette Coupe,AFR 195 street Eliminators,Edelbrock LT4 Air Gap intake manifold,9.5" 2800 stall,TPIS LT headers,Bullet 226/230.565.565/111 lsa cam,1.7 Scorpion rr's,EWP, X Pipe, Stock Exhaust,Elec.Cutouts,Dana 44/3.45, Tune by Wester's Garage
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Stl94LT1	Re: TPIS vs Stainless Works LT's	#62
Guru Newb 128 Posts Member since: 2007/12/29 0:00	My camshaft is similar to yours in duration 224/230. The lift is 605/622 (1.6), LSA 112, and has 2* advance ground in. Alot of the aftermarket LTx cams seem to have 2-4* built in. My car has tons of low end grunt, and I wouldn't think 2* advance would make a big difference over yours.
	Posted on: 2010/7/11 17:14
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pr0zac	Re: TPIS vs Stainless Works LT's	#63
Elite Guru Pittsburgh 1045 Posts Member since: 2008/10/20 23:28	i am doubting its the cam. they have been known to make great numbers. you are throwing things at it left and right and with only three runs down the track, you haven't really had a chance to play with it. you are kinda of throwing parts at it in hopes to cure an issue.
	Posted on: 2010/7/11 22:50
	_________________ 96 lt4. 357ci, 11:1, LE 226/232, LE2 LT4 heads, ported LT4 intake, EM Gladiator44, EM LT's, stock exhaust, NX kit.
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Weavsvet	Re: TPIS vs Stainless Works LT's	#64
Senior Guru 446 Posts Member since: 2008/9/16 9:08	Quote: pr0zac wrote: i am doubting its the cam. they have been known to make great numbers. you are throwing things at it left and right and with only three runs down the track, you haven't really had a chance to play with it. you are kinda of throwing parts at it in hopes to cure an issue. Not really true Josh. I've had the cam for months. I've been very happy with the cam so far. It's the addition of the heads I'm really disappointed in. Not seeing any real gain from them is very disappointing. And I have data logged and it also has my tuner stumped. I've done something wrong somewhere that's for sure and when he can't tell me what am I'm supposed to do? From a rwhp stand point I've made 100 over stock. Maybe that's it and there is no more......
	Posted on: 2010/7/11 22:59
	_________________ 1996 Corvette Coupe,AFR 195 street Eliminators,Edelbrock LT4 Air Gap intake manifold,9.5" 2800 stall,TPIS LT headers,Bullet 226/230.565.565/111 lsa cam,1.7 Scorpion rr's,EWP, X Pipe, Stock Exhaust,Elec.Cutouts,Dana 44/3.45, Tune by Wester's Garage
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Steve40th	Re: TPIS vs Stainless Works LT's	#65
Elite Guru 1114 Posts Member since: 2005/12/20 0:00	Have you compared your engine combo to others? Traction at the Rock is pretty good, but its also real hot, and LT1 manifolds are heat sinks. Maybe you are not letting it cool down enough between rounds. I used to put a code reader in my aldl and turn the key on for a little while to help cool the engine coolant with the fans, prior to a run. 100rwhp over stock isnt bad at all.
	Posted on: 2010/7/11 23:25
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Weavsvet	Re: TPIS vs Stainless Works LT's	#66
Senior Guru 446 Posts Member since: 2008/9/16 9:08	Quote: Steve40th wrote: Have you compared your engine combo to others? A little comparison is here but not much. Maybe this fall it will run better in cooler air. This time of year suks at the track anyway. http://forums.corvetteforum.com/c4-te ... has-to-much-duration.html
	Posted on: 2010/7/11 23:42
	_________________ 1996 Corvette Coupe,AFR 195 street Eliminators,Edelbrock LT4 Air Gap intake manifold,9.5" 2800 stall,TPIS LT headers,Bullet 226/230.565.565/111 lsa cam,1.7 Scorpion rr's,EWP, X Pipe, Stock Exhaust,Elec.Cutouts,Dana 44/3.45, Tune by Wester's Garage
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flyboy	Re: TPIS vs Stainless Works LT's	#67
Elite Guru Westmont, Il. 2632 Posts Member since: 2008/9/28 12:47	Going back to the AFR 195's. This is from what I have read, not hands on experience. The l98's exceptional torque due in large part to small volume, high velocity intake ports. AFR calls their 180's "torque monsters". Larger ports can hurt lower rpm performance on an engine not built specifically around them. Are your heads too big for your setup? I'm thinking mainly cubic inches here.
	Posted on: 2010/7/11 23:53
	_________________ '91coupe, LT4Hotcam, some other stuff. If it's too loud, you're too old. "He works on old cars, then junks 'em"
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Weavsvet	Re: TPIS vs Stainless Works LT's	#68
Senior Guru 446 Posts Member since: 2008/9/16 9:08	Quote: flyboy wrote: Going back to the AFR 195's. This is from what I have read, not hands on experience. The l98's exceptional torque due in large part to small volume, high velocity intake ports. AFR calls their 180's "torque monsters". Larger ports can hurt lower rpm performance on an engine not built specifically around them. Are your heads too big for your setup? I'm thinking mainly cubic inches here. Possibly I guess. I ordered 58cc chambers so that lowered compression a little bit. I did this mainly for future purposes. I used a .026 gasket to make back up what I could but I'm sure it wasn't anywhere near enough. The motor is a stock LT1 on the bottom.
	Posted on: 2010/7/11 23:56
	_________________ 1996 Corvette Coupe,AFR 195 street Eliminators,Edelbrock LT4 Air Gap intake manifold,9.5" 2800 stall,TPIS LT headers,Bullet 226/230.565.565/111 lsa cam,1.7 Scorpion rr's,EWP, X Pipe, Stock Exhaust,Elec.Cutouts,Dana 44/3.45, Tune by Wester's Garage
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Weavsvet	Re: TPIS vs Stainless Works LT's	#69
Senior Guru 446 Posts Member since: 2008/9/16 9:08	Let me ask you guys this......... I have the converter unlocked at WOT in 2nd and 3rd. Is it possible I'm losing something here? Would it be better if it was locked?
	Posted on: 2010/7/12 0:31
	_________________ 1996 Corvette Coupe,AFR 195 street Eliminators,Edelbrock LT4 Air Gap intake manifold,9.5" 2800 stall,TPIS LT headers,Bullet 226/230.565.565/111 lsa cam,1.7 Scorpion rr's,EWP, X Pipe, Stock Exhaust,Elec.Cutouts,Dana 44/3.45, Tune by Wester's Garage
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Steve40th	Re: TPIS vs Stainless Works LT's	#70
Elite Guru 1114 Posts Member since: 2005/12/20 0:00	Quote: Weavsvet wrote: Let me ask you guys this......... I have the converter unlocked at WOT in 2nd and 3rd. Is it possible I'm losing something here? Would it be better if it was locked? If its slipping yes. Ask PeteK. I dont change anything with the lock up for the converter. I leave it factory.
	Posted on: 2010/7/12 4:33
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Weavsvet	Re: TPIS vs Stainless Works LT's	#71
Senior Guru 446 Posts Member since: 2008/9/16 9:08	Looks like I'll be sending some 1.7 Scorpions back. I got this from J. Patrick at AFR just now. Mike, I wouldn't bother with the 1.7 ratio, the increase wear on the valvetrain from the accelerating the cam with the higher ratio is not worth the minimal gain you will see. Thank you for choosing AFR, Jerami Patrick AFR Sales & Technical Support www.airflowresearch.com (661) 257-8124 ext. 111 -----Original Message----- From: mike weaver Sent: Monday, July 12, 2010 3:23 PM To: sale Subject: 1.7 rockers... Hi, I have a set of your 195 street eliminators on my '96 vette that I purchased about two months ago from you. My cam may be lacking enough lift and I was wondering if I can run Scorpion 1.7 rockers without causing any issues. I have CC 1.6 on there now. My cam has .565/.565 lift and the 1.7 should put it very close to .600. Sincerely, Mike Weaver
	Posted on: 2010/7/14 23:55
	_________________ 1996 Corvette Coupe,AFR 195 street Eliminators,Edelbrock LT4 Air Gap intake manifold,9.5" 2800 stall,TPIS LT headers,Bullet 226/230.565.565/111 lsa cam,1.7 Scorpion rr's,EWP, X Pipe, Stock Exhaust,Elec.Cutouts,Dana 44/3.45, Tune by Wester's Garage
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Steve40th	Re: TPIS vs Stainless Works LT's	#72
Elite Guru 1114 Posts Member since: 2005/12/20 0:00	The only thing it adds wear to is the valve guides. Who cares. HP is not cheap, give it a shot. Think about the LSx engines. They have 1.7 and some 1.8's with the same size, thickness, valves as your heads. They are fine.
	Posted on: 2010/7/14 23:58
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