Any HR engine builds yet?
09-27-2008, 09:36 PM
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working on it... I still havent decided on built 3.5 or 4.5. The 4.5 kit is going to be hard to get a hold of. I might start with cnc ported heads and cammed 3.5. Shooting for 400whp on the 3.5. We will see. Im waiting on some 4.5 kits to come out! Ohh and some tuning options might be nice
09-27-2008, 09:42 PM
#3
Nice.....just a few questions
1. Are you planning on boosting?
2. If you plan on boosting what Comp ratio are you looking at?
3. Have you decided on an EMS?
As soon as I hit my savings mark I plan on doing a build like I said but this will be my DD so I need reliability. Thanks
1. Are you planning on boosting?
2. If you plan on boosting what Comp ratio are you looking at?
3. Have you decided on an EMS?
As soon as I hit my savings mark I plan on doing a build like I said but this will be my DD so I need reliability. Thanks
09-28-2008, 05:48 AM
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working on it... I still havent decided on built 3.5 or 4.5. The 4.5 kit is going to be hard to get a hold of. I might start with cnc ported heads and cammed 3.5. Shooting for 400whp on the 3.5. We will see. Im waiting on some 4.5 kits to come out! Ohh and some tuning options might be nice
09-28-2008, 07:51 AM
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working on it... I still havent decided on built 3.5 or 4.5. The 4.5 kit is going to be hard to get a hold of. I might start with cnc ported heads and cammed 3.5. Shooting for 400whp on the 3.5. We will see. Im waiting on some 4.5 kits to come out! Ohh and some tuning options might be nice
09-28-2008, 06:32 PM
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Yeaa.. The low 300 plus power is basically full exhaust and a reflash.. Pretty easy. Only like a few g's.. Not bad. Once my exhaust is sent here I just need a reflash and I should be over 300 rwhp.
09-28-2008, 06:51 PM
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400WHP should be no problem to hit. The cams I will be putting in might be a little big for a DD but they will make the power. My CNC guy said no problems doing the heads. Its all lined up I just need to see how I can go without my car for a while. And I am waiting on the access port results....
09-29-2008, 04:55 AM
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400WHP should be no problem to hit. The cams I will be putting in might be a little big for a DD but they will make the power. My CNC guy said no problems doing the heads. Its all lined up I just need to see how I can go without my car for a while. And I am waiting on the access port results....
09-29-2008, 06:03 AM
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400WHP should be no problem to hit. The cams I will be putting in might be a little big for a DD but they will make the power. My CNC guy said no problems doing the heads. Its all lined up I just need to see how I can go without my car for a while. And I am waiting on the access port results....
09-29-2008, 09:06 AM
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If you could dig up some of them facts you're claiming I'd be thankful.
-J
Last edited by itsjiggajames; 09-29-2008 at 09:08 AM.
09-29-2008, 11:28 AM
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Are you boosted? Where's this flow bench work chart? Link to thread? How do you know HRs are reliable boosted at 400-500rwhp when there are only a couple boosted so far and have been boosted for a couple months? Not that I doubt the HR is a stout motor but you have all these answers and I don't see any proof that i'm interested in seeing.. (high mileage HRs.. flow charts... etc)
If you could dig up some of them facts you're claiming I'd be thankful.
-J
If you could dig up some of them facts you're claiming I'd be thankful.
-J
http://g35driver.com/forums/tech-07-...rning-gtm.html
I don't have the flow charts on the heads ... I just commented based on what Sam at GTM told me. I'll try to hit him up for some graphs when I get my car back from them. It's there for transmission upgrades right now.
I wanted to stay conservative so I think I have the lowest WHp for a boosted HR. The VHR has already been taken over 500WHp by FP also on a "conservative" tune.
I was also told GTM has sold about 11 kits so far, so we should be getting some good data soon.
09-29-2008, 03:56 PM
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09-29-2008, 06:21 PM
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What kinda cams are you using?? And what work can I do to the head?? I wanna do a lil head work before the entire block. Maybe free up some air flow and make the revving and everything faster and safer. I'm coming from building hondas so I dunno how much of it is the same really.
09-30-2008, 02:22 AM
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I will most likely buy blank cams and come up with my own numbers and then have them ground. For those who know cams it will be somewhere around 235 duration at .050 and 11mm lift. The heads will be CNC machine ported. My heads will be used as the test subject for the new program. They will be flowed before and after. Im hoping for 50 more cfm.... Along with that I will get stainless steel valves and some new valve springs. Should get me to the 400whp mark.