Yea, vibration, and flex in the core support will eventually break the radiator or that tab. It def needs to be rubber mounted.

 

Please be mindful that radiators are rubber mounted not for damage to core from vibration but to isolate the core electrically. This reduced sludge and build up in the core.

 

There must be more to it than that, at least for OEM because the OEM radiator has plastic endtanks so its electrically isolated by that virtue alone. Assuming the motor is electrically grounded to the chassis, there will be a galvanic cell for this radiator though, and that isn't good.

 

Well, we'll definitely redo the mounts with some rubber then lol.

Sometimes you don't think of everything when trying to look fancy I guess

 

the intrawebz is good for something once in awhile.

 

Isn't it just!

 

Some 7670 results.

- 2.3, ported head with 1mm over valves etc.
- Kelford 272 cams
- Fabtech turbo kit, twin 40mm gates plumbed back in.
- 3.5inch dump back exhaust.
- 7670, 1.05 EWG.
- ID1300, twin 460 pumps.

30psi on E85
20psi on 98RON (92-93MON)
Was logging shaft speed through the ECU and at 7000rpm we were sitting at:
~103k at ~20psi
~118k at ~25psi
~134k at ~29psi

Had to stop at 30psi due to the intake temps from the poor intercooler and injectors being at ~90%.

Add ~15% to these readings for Dynojet numbers.





E85


98 (92-93)


Snapshot at 4k.

 

I'm a bit confused by the suggested conversion to DJ numbers. Adding 15% to the E85 result would be 630 whp. That would be the highest value I have seen for a 7670, and ID1300s can't support that power with E85 unless the base fuel pressure is probably 60+ psi.

 

I have seen 1300 in the 590-600whp range. But I agreed the 15% is a little much.

 

They most certainly support ~630whp, I've done 10-15 setups like this.
Base pressure of 58psi.
Punch it into the ID fuel flow calculator and it's spot on

The dyno numbers are spot on in the 14-15% range.

On this dyno:
~370-375whp (420-430 DJ) runs ~120-122mph.
~425-430whp (490-500 DJ) runs ~125-127mph.
~470-480whp (540-550 DJ) runs ~129-131mph.

I don't really see why it's not possible, the compressor map certainly says it is.
End of the day it's a touch bigger than a Red and they go ~600-610whp with corrext supporting mods.

 

The flow testing I had done on two different flow benches showed them to be <1200 cc/min injectors. At 3 bar base pressure, I don't think even a super efficient setup could reach 590 whp DJ with that size injector on E85. I think the the apparent ability to reach that level is because a lot of people are running higher base pressure.

Its great to see, but I'm surprised because no one else has made that kind of power except one guy a few years back, and his 7670 bit the dust not long afterwards.

 

i've seen a 7670 on "kill-mode" on a EJ20 and EJ25 and they made around 590whp (Dynapack Dyno).
1.05 Twin Scroll exhaust housing.

 

Yeah, that's a bit closer to my thoughts on what it can do. My reference point thus far has been RTErnie's 7670 results. His final numbers on his maxed out 2.2L build were around 575 whp DJ on E85.

 

Hard to compare an EJ with the VE of a tire to a 4g63...lol.

 

Many more dynos/tuning projects, besides RTErnie's extensive knowledgeable & expert attempt to maximize EFR7670, have shown to not be able to reach 600whp DJ, so even fueling aside, it would be less-than-accurate to speculate how much does this dyno-test would read converted to DJ.

If anything, 550whp is awfully close to the 575-580whp max readings by past EFR760 E85 maximized readings, in Killer Mode- exceeding 29psi of this test.
If anything, I'd venture to guess this dyno reads DJ: RTErnie was at 34psi..5psi more could easily pick up 20-30whp? Of course!
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