D Series on Boost. This Sound Doable?
I have a 91 EF Hatch. Right now I auto X the car. I am actually thinking about changing the car from a AutoX car into ao Drag car. The car weights 1790 lbs right now. I have a D16Y8 in the car right now.
Now since I am thinking about drag racing the car. I am thinking I will go boost. I have a set of weisco pistons 9:1 comp .20 over, and a set of eagle rods sitting under my bed. I am debating if I should ditch the D series or not. I want to make about 400 hp on boost and maybe run like a 75 shot of nitrous on top. I want to get to about 450 hp all together. I know for sure the head will have to get ported to hell to try and make that much HP. I was thinking about buying a Comp Cam also to help out the airflow.
Does this setup sound doable, and should this setup be able to get me into the low 11's with the right suspension setup and traction? With the car weighting in at under 1800 pounds still?
Now since I am thinking about drag racing the car. I am thinking I will go boost. I have a set of weisco pistons 9:1 comp .20 over, and a set of eagle rods sitting under my bed. I am debating if I should ditch the D series or not. I want to make about 400 hp on boost and maybe run like a 75 shot of nitrous on top. I want to get to about 450 hp all together. I know for sure the head will have to get ported to hell to try and make that much HP. I was thinking about buying a Comp Cam also to help out the airflow.
Does this setup sound doable, and should this setup be able to get me into the low 11's with the right suspension setup and traction? With the car weighting in at under 1800 pounds still?
Anything is do-able. You just got to find the right combination of parts.
Id put more emphasis on acheiving your whp on just boost. Dont do 2 forced inductions together. I mean you can but there really isnt a point when you can just get what you want from all boost.
Id put more emphasis on acheiving your whp on just boost. Dont do 2 forced inductions together. I mean you can but there really isnt a point when you can just get what you want from all boost.
Here is the thing.. I would say either use a stock d-series or build a b-series.. But then again you said that you already have the pistons and rods for you d-series so why not just build that and use it..
And if your turbo is matched correctly for your power range you arent going to need a 75 shot on top of the turbo.. If your turbo is too big than you might need the nitrous to spool it up but for your hp range you wonlt..
And on the calculations it takes about 300whp to hit low 11's in that weight of car.. So if you have 400whp and a good suspension setup it can be done..
And if your turbo is matched correctly for your power range you arent going to need a 75 shot on top of the turbo.. If your turbo is too big than you might need the nitrous to spool it up but for your hp range you wonlt..
And on the calculations it takes about 300whp to hit low 11's in that weight of car.. So if you have 400whp and a good suspension setup it can be done..
I guess I will put it together and see how it turns out. Now the pistons are 9:1 compression. Should I lower the compression anymore with like a .050 or .060 head gasket. Or should I just run a .040 head gasket? I will run race gas on high boost settings. Getting race gas over here is not a issue.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Power Rev Racing »</TD></TR><TR><TD CLASS="quote">I guess I will put it together and see how it turns out. Now the pistons are 9:1 compression. Should I lower the compression anymore with like a .050 or .060 head gasket. Or should I just run a .040 head gasket? I will run race gas on high boost settings. Getting race gas over here is not a issue.</TD></TR></TABLE>
You're not going to have any problems running lots of boost with 9:1 compression and race gas, I wouldn't go much/any lower.
You're not going to have any problems running lots of boost with 9:1 compression and race gas, I wouldn't go much/any lower.
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from all the information ive read, it seems like one of things holding the d-series back is the head.
also find the right turbo for your setup.
btw, where do you get race gas from so easily? I'm located in Miami as well.
also find the right turbo for your setup.

btw, where do you get race gas from so easily? I'm located in Miami as well.
If you want that power goal out of the d series you will need to focus on having a good flowing head and low back pressure. You will need a decent sized turbo and if you can get an equal length manifold. The d series heads flow terrible compared to the b series so you need to lower the back pressure for that kind of power. Also the zex 59300/comp cam is a great cam and will help you achieve your goals. I know it made a huge difference over the stock cam on my setup and i'm not even pushing near that kind of power.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SOHC_MShue »</TD></TR><TR><TD CLASS="quote">If you want that power goal out of the d series you will need to focus on having a good flowing head and low back pressure. You will need a decent sized turbo and if you can get an equal length manifold. The d series heads flow terrible compared to the b series so you need to lower the back pressure for that kind of power. Also the zex 59300/comp cam is a great cam and will help you achieve your goals. I know it made a huge difference over the stock cam on my setup and i'm not even pushing near that kind of power. </TD></TR></TABLE>
Thats the exact cam I am going to get. its actually the 105300 for the Y8, the 59300 is for the Z. Yeah i guess i will really need to get that head ported big. I just need to make sure it goes to the right people.
Thats the exact cam I am going to get. its actually the 105300 for the Y8, the 59300 is for the Z. Yeah i guess i will really need to get that head ported big. I just need to make sure it goes to the right people.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Power Rev Racing »</TD></TR><TR><TD CLASS="quote">Thats the exact cam I am going to get. its actually the 105300 for the Y8, the 59300 is for the Z. Yeah i guess i will really need to get that head ported big. I just need to make sure it goes to the right people. </TD></TR></TABLE>
I actually used to run the 59300 in a y8 head. Just had to fiddle with the cam timing.
I actually used to run the 59300 in a y8 head. Just had to fiddle with the cam timing.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SOHC_MShue »</TD></TR><TR><TD CLASS="quote">
I actually used to run the 59300 in a y8 head. Just had to fiddle with the cam timing. </TD></TR></TABLE>
Yeah thats the only thing thats different.
I actually used to run the 59300 in a y8 head. Just had to fiddle with the cam timing. </TD></TR></TABLE>
Yeah thats the only thing thats different.
Built the head as much as you can, run a Zex 59500 cam, and get a gt30r turbo setup... Your goals should be a piece of cake in your light *** car.
Here's a good example of what that turbo will do on a D-series motor...
http://forums.evans-tuning.com...=3145
Here's a good example of what that turbo will do on a D-series motor...
http://forums.evans-tuning.com...=3145
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by beerbongskickass »</TD></TR><TR><TD CLASS="quote">Built the head as much as you can, run a Zex 59500 cam, and get a gt30r turbo setup... Your goals should be a piece of cake in your light *** car.
Here's a good example of what that turbo will do on a D-series motor...
http://forums.evans-tuning.com...=3145</TD></TR></TABLE>
What do you think would be a good exhaust manifold to get? Something that under $900
Here's a good example of what that turbo will do on a D-series motor...
http://forums.evans-tuning.com...=3145</TD></TR></TABLE>
What do you think would be a good exhaust manifold to get? Something that under $900
FWIW, Geoff made 790 WHP on a GT4088R, they're quite a large turbo.
I'm "only" running a GT35R on my D-series which is a good amount smaller than a GT40R, shooting for 200 WHP more than you want to make, and I feel my turbo might be on the large side.
I'm "only" running a GT35R on my D-series which is a good amount smaller than a GT40R, shooting for 200 WHP more than you want to make, and I feel my turbo might be on the large side.


