T72bb Vs Gtq70/71

[Nick Micale]

Originally posted by JCotton
' well, all D!ck did to go from 10.3's to 9.8's is replace his BB70 with the 70GTQ so I would say they have a little kick (much better than a 72)"

Sorry Woody, but thats a crock, not looking to nor will I get in a pissing contest here,. but there is a lot more to what he did than just change turbos, get it straight......... hate to be blunt, but that statement is downright misleading and just not true.

Jack, you happen to be way off base here. I put the 70GTQ on Dic's car, and the same FAST program that he was previously running 10.3's went a 10.05, and then 9.83. There was NOT "more to what he did than just change turbos".

Woody's statement, like Len's, is very true. Seems like a few of the TSM racers I have talked with have the same story - 70GTQ kicks butt over a 70 or 70BB.

Wheather you, or anyone else here, believes it, that is your opinion. So far the facts used to answer the original question are valid, not a "crock".

 

[twin 93 svt]

Yeah baby,The 70 GTQ has put up 630rwhp and 614rwt at 26 lbs of boost for me, and definately higher for Bamford and others.

 

[ttypewhite]

So lets get back to my orginal question, Is it better then my T72BB turbo? Will I see any gains by changing over to a GTQ71? The car has already gone 128mph with tranny problems causing me to get out of it and then step back into it inbetween 1st and 2nd gear shifts.
It really is hard to believe though, that he picked up so much jam from just that turbo change. I am not saying that I don't believe it. But if that kinda gain is there with this turbo thats UNBELIVEABLE, good form him. Talk about the best bang for your buck or what. All I can say is WOW, 5 tenths and 6mph

Jack do you think I would benefit from this turbo change or am I really just splitting hairs?

LASTLY I AM PUTTING THIS IN BOLD TYPE FOR A REASON, DON'T DEAL WITH MOTORMATRIX!!!!!!! THE GUY IS FRAUD AND MOST LIKELY IS GOING TO CATCH A BEAT DOWN WHEN CUSTOMERS GET AHOLD OF HIM, READ http://www.honda-tech.com/zerothread?id=734144
THEN DO A SEARCH ON THAT BOARD AND READ SOME MORE. WHAT A NIGHTMARE.

 

[salvageV6]

My point is it looks like the facts change the more people post.

Thanks for the scientific report can't wait to see the writeup.

Good luck with your new turbo Woody.

Good thing it wasn't a newbie posting about his turbo swap and new programming, bet he woulda got a different bandwagon.

 

[GNSCOTT]

You are not picking up a half second at those levels from changing from a 70bb to a 70gtq unless there was a bigger exhaust housing added. A better fast program, a better 60ft, a better air quality day can give you that 1/2 second. where are the b to b dyno runs to show an increase of what? 150 to 200hp increase to pick up the .5 .

If i'm understanding this right as a vendor, you have no problem telling me If I switch from a 70bb to the GTQ that i will pick up 150 to 200hp??

 

[John Wilde]

Scott,

From what I am told the GTQ Turbo makes over 100hp more
than the standard type 70. Bamford went 142mph with the GTQ with some left at 3570lbs, what is the fastest on a standard 70 at a similar weight???

 

[GNSCOTT]

almost forgot, didn't **** run a 10.3 at the Nats a couple years ago with a T-66bb???

 

[Nick Micale]

If you are talking about Kereny, he has run 10.3 in BG but never with a T-66BB. He has gone through 2 other 70BB turbos since then. The last one was from Innovative.

When we installed the GTQ, the exhaust housing was different as that is what was supplied with it.

I would also say it was a "good air" day for our area, DA was 1700-2000' and about 65 degrees.

As to claims about how more or less HP, I leave that to the people that make the turbos. I just reported what I did and the results. There are items that make the combo work best and we do not always know why? I found a turbo on one of my motors was not "optimum" and picked up about .5 by just changing it. Maybe GTQ is the "right" turbo for Dic, but not someone else?

 

[GNSCOTT]

Nick, I see what everyone is saying, but it was put forth that he picked up a half second by magically switching to the GTQ and I think its just an outrageous claim, Exhaust housing mean alot, a much improved 60ft means alot, an improved fast tune alone can pick up a half second, better air helps, especially when run in winter. I'm just trying to help "keep it real" in this thread. I bet the guy picks NOTHING up going from a 72mmbb turbo to the GTQ. Of course this is my personal opinion because no one independent has put it on a dyno back to back.

 

[Nick Micale]

Scott, if I had a 72BB, I would not run out and jump on a GTQ either.

In a few months, Dic's TA alum motor will be running an so will mine. The builds are very similar, and he will use his GTQ and I will have my TE-72. Cars weigh about the same so it may not be an exact comparison, but will provide interesting info.

 

[GNSCOTT]

Can't wait to see the wild TA block builds, and your right, It should be a good comparison, especially on the dyno.

 

[TURBO 6]

I find it hard to believe that the GTQ all of a sudden made this car run. To run 136 in a full weight (3600 with driver)you should be making around 610 at the wheels.
I pulled my car off the dyno at 605 hp because the motor only had 7 miles on it and I wanted to get a little more break-in time before I really pour the coals to it. I have just a regular 70 Q trim.
I'm not saying the GTQ won't increase HP, but I would think around 30hp would be more realistic. Maybe I'm wrong, but you'd have to prove it to me. If anyone wants to test the GTQ to a 70 Q trim, let me know, I'll provide the 70.

 

[azgn]

believe what you want... the car wasn't exactly a dog before (10.3)

it weighs 3510 with driver

the weather was favorable but the da wasn't

on a warmer day at 24 lbs of boost it ran 10.1 hard on the brakes at the big end (not quite legal yet....)

give the tune a couple of tenths, the turbo made the difference

tip: don't race any TSM guys with this turbo....you'll lose

 

[top gun]

My vote goes for the 1/2 second pick up just by adding the 70 gtq, that turbo is one bad b!tch.

 

[salvageV6]

Vote? Then why wasn't this put up as a poll?

Hey if the boost gauge is pegged at 24psi. I got one I can loan y'all that goes to 30.

Might help the gooroos in tuning.

Back to your regularly scheduled comedy program.......

 

[TURBO 6]

Maybe so, and by all means I hope you're right, Woody. I'm gonna get a GTQ soon. I would love to see the same gains with my car, but I don't expect it. If it does gain like that, I'm looking at over 700 rwhp with a 3.5 downpipe. That should put me in the mid to low 140's I would think.


Salvage, you outta know by know all TSM cars run 24#'s of boost!

 

[10SV6]

I did a FAST install up here on a friends GN this summer. Stock block, 2nd gen Champion Aluminum heads, 224/224 flat tappet cam, CAS V2, TH 3 " D/P, PTE 64e w/ .8whatever exhaust housing, 3200 convertor w TH400. Car ran a best of 10.6, 126 @ 27 psi. Then of course the turbo did the eat the exhaust wheel thing.

Well that 64 got replaced with a 71 GTQ, a 4" aluminum MAF pipe, the bigger intercooler adapters to install it. The tuneup stayed exactly same. At the time I really didn't have the time to get to the track with him to play with the tune. On days when the conditions were very similar, at the same boost level the car went almost exactly the same. To the tenth, both ET and MPH. The big difference is that he had to add another 500 rpm to the convertor to get the GTQ to spool.

That's my GTQ experience. There might be something to the turbo if you're running 40 psi, but in my experience, there wasn't anything amazing there.

 

[ttypewhite]

Well my Dad and I have very simiallar motor, with the only major difference being the turbo. i have the T72BB and he has the GTQ70. I will be putting his motor in very soon so I am curious to see the differences.

 

[Sleeper-6]

Out of curiosity, What stall differences are we looking at to get the 70,71,12GTQ's to spool compaired to the 70BB nad 72BB?

 

[GNSCOTT]

Out of curiosity, What stall differences are we looking at to get the 70,71,12GTQ's to spool compaired to the 70BB nad 72BB?

Thats a good question, but also, no one is taking ex housings into account. Its all about the exhaust housings. If you don't mind losing spool like alot of race cars you can go with a big AR.