harrop tvs
In terms of bolting one on, it is the limit. The blower is larger and better than the M62, so by adding octane the HP potential rises quickly. Most people are interested in pump gas numbers. But let me be clear. If you plan on buying a TVS and bolting it on with your basic mods, you should plan on making less than 300WHP or right about there. If you run nearly straight meth like ARea or run race gas or E85, you can plan on a lot more pretty easily.
I just went to the dyno on Friday and I have all the bolts on.
TVS Blower w/ 3.15", CTI H/D cat-less, Magnaflow 2.5" CB, 60s, WB, K&N Filter, Dual Pass HE, Dual Pass Endplate, Option B Kit. 93 Octane.
My max HP numbers where:
287whp 252whp
There are a couple of things that I can do to squeeze a few more hp out of this car. The tune is commanding a flat afr. And I probably need a larger cat-back. Realistically I could pick up another 15-25whp with a few more changes.
But as far as timing goes I am maxed out. I can run 19 degrees all day long at 11.76 commanded afr but as soon as I bump the timing to 20 I will get KR around 7100. To run 20 degrees of timing I had to lower my AFR to 11.2-11.3. But notice (Run_015) that made me lose hp.
With out adding octane my HP wall will be around 310whp ish. But I am cool with that. I have a few other things planned that should put me in the 350whp range.
Here are my dyno sheets in case anyone is interested.
Run_006 - 0TTP Stage 1 base tune. Dialed in by Josh.
Run_012 - 0TTP TVS base tune. 18 degrees 11.7/11.8 flat afr, Dialed in by Josh.
Run_013 - 19 degrees of timing. Same MAF as 0TTP Base
Run_014 - Same tune as Run_13 but to 7300rpms. Heat Soak FTL.
Run_015 - 20 degrees of timing. 11.2-11.3 flat afr.


The debate has been settled by dozens of non bias'd parties who have the TVS on their cars already.
http://www.******************/forums...ower-dyno.html from the red line forum.
TVS swap, OTT's help and tuning. 25x WHP to 28x WHP. Go ahead and post the excuses and what if's and how I'm an ass for linking real world results.
Guy above gained ~30 WHP from the TVS swap, after dyno tuning. Seems quite typical. If that's what you want and expect, then the TVS will make you happy. If you want to bolt it on and hit 350 or anything close to that, you'll be sadly disappointed.
http://www.******************/forums...ower-dyno.html from the red line forum.
TVS swap, OTT's help and tuning. 25x WHP to 28x WHP. Go ahead and post the excuses and what if's and how I'm an ass for linking real world results.
Guy above gained ~30 WHP from the TVS swap, after dyno tuning. Seems quite typical. If that's what you want and expect, then the TVS will make you happy. If you want to bolt it on and hit 350 or anything close to that, you'll be sadly disappointed.
The only thing is that was not tuned on the dyno.
Last edited by ebristol; May 28, 2009 at 12:52 PM. Reason: Automerged Doublepost
I know of a Redline here in NC... that made 296whp just a few months ago... between him and I messing with the tune.....
TVS, on the 3.15, 60's, header, downpipe, 2.75" exhaust, and stock airbox!
and OH yeah... NO meth................ YET
TVS, on the 3.15, 60's, header, downpipe, 2.75" exhaust, and stock airbox!
and OH yeah... NO meth................ YET
Internet tuning is horrible...you need someone to sit there in you car and tune you
I am sure you can pull more out of you car, I wasn't even on a dynojet and i pulled 298/27X with no tuning other than just enough to make it safe
I am sure you can pull more out of you car, I wasn't even on a dynojet and i pulled 298/27X with no tuning other than just enough to make it safe
See, another one.... CUSTOM TUNING.... my car did the same thing!
YOu really think ZZP hasn't dyno'd a TVS?
There are a few different guys here at ZZP that by themselves know more about Eaton blowers than this entire forum combined. We simple have the tools, years, and experience to do and know things others don't. Details about snout flex, pulley groove design, HP required to drive a blower, CFM of various blowers, blower designs, lobe designs, and the list goes on and on and on. It's simply amusing to hear people think we're newbs.
You do know we're an Eaton dealer correct? And that Eaton gives ZZP prototype parts before there is even press release on them? We're one of the only shops in the country to have a supercharger dyno. We can draw compressor maps, test CFM, intercooler design and efficiency, etc. We have the highest HP 3800 ever built given 2 different designs of the M90. ZZP is the only company to modify an Eaton blower by fixturing larger rotors into the same housing. M112 hybrid. Look it up.
When the guys working on the Solstice on the cover of the June 2008 issue of High Performance Pontiac hit a HP wall with the Harrop powered LSX, guess who's cell phone rang? Mine. (for the record, I did not help with the project. Point for discussion only)
When guys went after the Lee top speed record and needed an intercooler for the Eaton powered vehicle chasing him down, do you know who built it? That's right ZZP.
And as far as ZZP/Harrop? Without getting into details, Harrop flew a rep here. ZZP didn't like the terms, so we said no thanks. Harrop moved on to other vendors.
So when you ask if I or my crew knows such trivial info as this about a blower, it's stupid. So elementary, that it's dumbing to reply.
In terms of bolting one on, it is the limit. The blower is larger and better than the M62, so by adding octane the HP potential rises quickly. Most people are interested in pump gas numbers. But let me be clear. If you plan on buying a TVS and bolting it on with your basic mods, you should plan on making less than 300WHP or right about there. If you run nearly straight meth like ARea or run race gas or E85, you can plan on a lot more pretty easily.
There are a few different guys here at ZZP that by themselves know more about Eaton blowers than this entire forum combined. We simple have the tools, years, and experience to do and know things others don't. Details about snout flex, pulley groove design, HP required to drive a blower, CFM of various blowers, blower designs, lobe designs, and the list goes on and on and on. It's simply amusing to hear people think we're newbs.
You do know we're an Eaton dealer correct? And that Eaton gives ZZP prototype parts before there is even press release on them? We're one of the only shops in the country to have a supercharger dyno. We can draw compressor maps, test CFM, intercooler design and efficiency, etc. We have the highest HP 3800 ever built given 2 different designs of the M90. ZZP is the only company to modify an Eaton blower by fixturing larger rotors into the same housing. M112 hybrid. Look it up.
When the guys working on the Solstice on the cover of the June 2008 issue of High Performance Pontiac hit a HP wall with the Harrop powered LSX, guess who's cell phone rang? Mine. (for the record, I did not help with the project. Point for discussion only)
When guys went after the Lee top speed record and needed an intercooler for the Eaton powered vehicle chasing him down, do you know who built it? That's right ZZP.
And as far as ZZP/Harrop? Without getting into details, Harrop flew a rep here. ZZP didn't like the terms, so we said no thanks. Harrop moved on to other vendors.
So when you ask if I or my crew knows such trivial info as this about a blower, it's stupid. So elementary, that it's dumbing to reply.
In terms of bolting one on, it is the limit. The blower is larger and better than the M62, so by adding octane the HP potential rises quickly. Most people are interested in pump gas numbers. But let me be clear. If you plan on buying a TVS and bolting it on with your basic mods, you should plan on making less than 300WHP or right about there. If you run nearly straight meth like ARea or run race gas or E85, you can plan on a lot more pretty easily.
If so email me the results.
sean@ottperformance.com
I have the results direct from eaton and to my knowledge im one of the very few that has access to this info.
Normally when zoomer has graphs, he posts them immediately with his posts... You seem to post information about H/E's and fuel pumps... but you have this TVS information that no one else has heard about...
but there was another car in NC that was right at 300whp with a 2.5" exhaust, shorty header, 60's, NO meth.
Zoomer:
What ever happened to those turbo kits you said you were making for the LSJ a few months back? Then you dropped your plans on that and started to turbo a 2.4? If you say you can make so much more power on a turbo than you can a SC and you have all these tools and people with so much know how it makes this board look stupid, why have you yet to produce a turbo kit? Even your twincharge uses a SC, so I guess it can't be all that bad.
Here's a link to your web page for reference. Last updated in November. http://www.zzperformance.com/cobalt_...ts1.php?id=934
What ever happened to those turbo kits you said you were making for the LSJ a few months back? Then you dropped your plans on that and started to turbo a 2.4? If you say you can make so much more power on a turbo than you can a SC and you have all these tools and people with so much know how it makes this board look stupid, why have you yet to produce a turbo kit? Even your twincharge uses a SC, so I guess it can't be all that bad.
Here's a link to your web page for reference. Last updated in November. http://www.zzperformance.com/cobalt_...ts1.php?id=934
lol ik so i dont see why its hard to believe the tvs can get over 300whp w/o meth. its all in the tune
My buddy (BLAZIN07SS) revs his to 7300(same tune and mods) on a 50 shot. The car feels so much better though. When I shift from 2nd to 3rd, 3rd feels a little more powerful. I guess because I am put more in the powerband and previous. I used to **** at about 6800. Now, I bring that thing to every bit of 7200. And the blower screams like a sonofabitch that high. 
Anxious for the TVS to get dropped in. Oh, I also have the fuel shut off thing turned off....So I let off the throttle and it pops like a skittle. lmao. Call it ricer.

Anxious for the TVS to get dropped in. Oh, I also have the fuel shut off thing turned off....So I let off the throttle and it pops like a skittle. lmao. Call it ricer.
you mother ******.
i helped you because i felt sorry for you. poor pitiful me, i can't trap more than 106 mph and break 290whp with a tvs. now you want to ******* attack me? **** you. seriously.
06black did 304 on an m62
i did 298
shaunmcdee did 314
paul did 295
"methonal is highly corrosive" no ****? gee, i never knew that.
as far as everyone else being open and not very secretive? LMFAO. bull ******* ****. you only know what you read on here.
i helped you because i felt sorry for you. poor pitiful me, i can't trap more than 106 mph and break 290whp with a tvs. now you want to ******* attack me? **** you. seriously.
06black did 304 on an m62
i did 298
shaunmcdee did 314
paul did 295
"methonal is highly corrosive" no ****? gee, i never knew that.
as far as everyone else being open and not very secretive? LMFAO. bull ******* ****. you only know what you read on here.
almost 4yr's ago now.
some one smart pointed that out!
people will learn the hard way my friend, its just how it is.
Last edited by 06black; May 28, 2009 at 04:32 PM. Reason: Automerged Doublepost
They are banned in nearly all classes becaue they provide such an unfair advantage. Besides that people would die making unlimited HP.
First off, everyone doesn't know that turbos make more power because you and some others around here keep lying and misleading people about blowers and the TVS. If people were honest, as I am, I wouldn't have to post what should be obvious. This is a new market and these poor kids actually believe that they will buy a TVS, bolt it on, get a tune and make over 300WHP. They won't or not much over.
2nd, I never said the TVS was fail. You're lying and putting words in my mouth. Then you're bashing me for lies you are making up about what I said.
The TVS is a larger blower but you cannot use much of it's benefits without increased octane. Add the octane and you can turn up the boost. It's simple, and should be posted with every TVS thread.
Question: TVS
Answer: Makes approx 10% more power than M62 with potential to do a lot more if you can increase octane. The end.
First off, everyone doesn't know that turbos make more power because you and some others around here keep lying and misleading people about blowers and the TVS. If people were honest, as I am, I wouldn't have to post what should be obvious. This is a new market and these poor kids actually believe that they will buy a TVS, bolt it on, get a tune and make over 300WHP. They won't or not much over.
2nd, I never said the TVS was fail. You're lying and putting words in my mouth. Then you're bashing me for lies you are making up about what I said.
The TVS is a larger blower but you cannot use much of it's benefits without increased octane. Add the octane and you can turn up the boost. It's simple, and should be posted with every TVS thread.
Question: TVS
Answer: Makes approx 10% more power than M62 with potential to do a lot more if you can increase octane. The end.
I guess i will share my "real world results". Keep in mind this is far before i was a vendor, so no comments about it being unfair becuase we offer the product.
2.5" pulley m62 12.2 afr 23* timing (trapped 108)

2.75" pulley tvs 11.0 afr 16* timing 93 pump gas

24% gain in power on pump gas alone. Not to mention the much improved a/e just by glancing at the sheets.


