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Thread: VE-T blogger, dynos, movies, and pics.

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Posts: 201-210 of 277
2008-09-20 01:36:55
#201
I have decided on a twin scroll T3 setup from Protech if the price is right. I am looking for a really good piece and I may even make it myself. So I am going to keep the gt3076r and make it twin scroll. It should boost really quick and make the 500whp I want.

My buddy has his all-trac that runs 10s now with a 1.8 60' @ 130mph. He made like 690awhp on a mustang dyno. I would like to have a car that can somewhat keep up. I will need to make just over 500whp and do a lil weight reduction to get into the low low 11s.

I am focused on making awesome mid-range power with this turbo and keeping the rev limit low for reliability. I have a set of the stock sr20ve cams. If they made more power than the VET cams on this "new" manifold I would be surprised. I am loving the VET cams.

I would like to do a full cam comparo, since I have a dyno real close and real cheap.
2008-09-20 01:50:40
#202
hey coheed, where can you find the twin scroll housing ? i would like to convert mine to twin scroll as well
2008-09-20 08:21:45
#203
Originally Posted by Coheed
I have decided on a twin scroll T3 setup from Protech if the price is right. I am looking for a really good piece and I may even make it myself. So I am going to keep the gt3076r and make it twin scroll. It should boost really quick and make the 500whp I want.

My buddy has his all-trac that runs 10s now with a 1.8 60' @ 130mph. He made like 690awhp on a mustang dyno. I would like to have a car that can somewhat keep up. I will need to make just over 500whp and do a lil weight reduction to get into the low low 11s.

I am focused on making awesome mid-range power with this turbo and keeping the rev limit low for reliability. I have a set of the stock sr20ve cams. If they made more power than the VET cams on this "new" manifold I would be surprised. I am loving the VET cams.

I would like to do a full cam comparo, since I have a dyno real close and real cheap.


yeah sounds awesome!

the thing have found, with the twin scroll is that manifold design is very important! if not done right the will be no gain and possible loss from the twin scroll set up. But if you are willing to put forward the cash for a full race or something similar then gains are to be had.

for this reason i decided to go with a conventional t3, but down the track i might convert to twin scroll t4
2008-09-20 15:08:40
#204
Originally Posted by Coheed
118 on his 11.8 run and 116 on his 12.1. Nice eh?


119.28 and a 116
2008-09-20 16:40:01
#205
^^^ you coming to the dyno day? It is today, we just started.
2008-09-20 16:48:24
#206
Originally Posted by Coheed
^^^ you coming to the dyno day? It is today, we just started.


no my car is missing again, i dont know whats up with it, maybe i got a short somewhere, i put new plugs in it, gonna give it a shot later today, feels like a rich break up but it isnt any richer then usual
2008-09-20 20:41:10
#207
Well I dynod again. This time best pull was 334whp. I gained very little by removing the air filter and I took the exhaust off.
2008-09-20 20:53:34
#208
cool

what psi this time, and i take it was pump gas
2008-09-21 00:32:58
#209
This was pump with a couple gallons of 100 mixed in. I ran 24psi, but this time it was humid out and I think my spark plugs are dying. The gap keeps closing to around .020 after only a few hundred miles. hmmmmm. The only thing that changed between runs is the timing. I changed timing on my car and since I couldn't get it in timing mode I just set it barely off center. I just went outside a sec ago and realized that I put a scratch where the dizzy was supposed to go at 15*. I was way too conservative. Experience tells me that I was about 3-4* retarded over the old run. Oh well, live and learn.

Taking off the air filter only made 6whp on the very top end. Removing the exhaust made loads more mid-range. I like it except for the noise and the smell. After doing the pulls and taking some guys for a ride I noticed the car felt a lil down on power, and I have a partial throttle misfire. Sigh, the signs of a small gap.

Here is the sheet. you can see the comparo from my old run vs new. The new one looks really jaggy and since the exhaust wasn't hooked up we couldn't get afr.



I gained over 50whp in the midrange over the run with the exhaust. WOW! Sure I didn't make any more peak power, but with the timing back in I maybe would have seen a bit more. I don't have a clue how much more power 3* more would make.
2008-09-21 00:38:48
#210
Now that I think about it, this pull was in 4th gear. I know the clutch was slipping, I really wanted to do 3rd gear but everyone there made around 15whp more by dynoing in 4th over 3rd. The supercharged caddy did 417whp in 4th and 389 in 3rd.

I will soon be switching to a pull-through setup to see what the power difference is. Also, I will be doing some pulls to determine many automotive myths. Do lightweight wheels make more power??? What about a flywheel? Should be very fun and interesting to see the results.
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